The History of Whoo Cheongidan Rejuvenating Pro-Radiance Refining Essence iridescent pearl bottle with fluted silver cap and red enamel crown, 150 ml
Not yet assessed for Dullness
What makes this different

It is the product in The History of Whoo's range that reads most like a clinical brand's: niacinamide fifth, a polyhydroxy acid, pyruvate and enzyme trio for gentle daily refinement, adenosine, panthenol, allantoin and bisabolol, and a deep humectant stack of trehalose, xylitol, erythritol and saccharide isomerate, before the fifty-herb Cheongibidan prescription and the gold take over the second half of the list. The 2025 rebuild replaced the 2021 Illuminating version with LG's patented Pro-Radiance and Refining complexes, and the alcohol third and six-allergen fragrance are the parts that remind a buyer which house it came from.

The History of Whoo

The History of Whoo Cheongidan Rejuvenating Pro-Radiance Refining Essence Review

Clinic-Minded Hanbang Toner Toners liquid luxury Paraben free Vegan Not cruelty free

The most evidence-literate bottle in The History of Whoo's Cheongidan line: niacinamide fifth, a gentle gluconolactone, pyruvate and enzyme exfoliating trio, adenosine and a deep humectant stack in a weightless watery gel, so it refines texture, clears the look of pores and brightens tone over weeks in a way most hanbang toners only promise. Alcohol third and a fragrance with six declared allergens on top of three exfoliants keep it off reactive skin, the fifty herbs and gold are the price rather than the effect, and importers want over a hundred dollars for a toner.

Price — 150 ml / 5.07 fl oz
On the market 2025 Made in South Korea
Buy at Amazon ♥
Verdicts

How well it fits each concern

A July 2025 rebuild of the 2021 Illuminating Refining Essence, this bottle has no verifiable independent review count, no US brand store and no published testing from LG, so this assessment rests on a fully disclosed descending ingredient list and on the general literature for niacinamide, polyhydroxy acids, adenosine, alcohol and fragrance; the price is a range across importers rather than a retail figure, and the patented complexes are judged against their components because no clinical data for them exists.

One verdict per concern. Open a row for the reasoning; the receipt has every source.

The scaleRecommendedGoodSupportingEarly evidenceNot for thisAvoidhow it works

Promisingfor Large PoresNiacinamide has trial-level evidence for large pores but no guideline or regulatory standing yet — promising, short of a recommendation; the other actives here are not yet assessed for it.Receipt3 sources on the row · concentration not declared; studied range 4% · row checked Jul 17, 2026 · rule R9p, same reading on 4,872 products · open the receipt

The case for it

  1. Niacinamide has at least one trial behind it for this concern but no guideline or regulatory standing yet.
  2. It is plausibly present at a working level, though the concentration is not declared.
  3. The formula carries no trigger this concern is sensitive to, with the cautions noted.

Moderate evidenceStandard tolerabilityNo reviews read yet

What would change this: A declared concentration would move this to a firmer reading of the dose.

Same rule for everyone. “Promising” is the verdict on 4,872 of 45,446 concern verdicts across the catalog; rule R9p decided 4,872 of them. Unchanged since September 25, 2026, engine 5.2.0.

Brand or formulator? Disclose a concentration or correct a fact →

The full receipt: rule, row, sources, dates →All large pores products →

Good choicefor HyperpigmentationNiacinamide is a trial-supported active for hyperpigmentation; this liquid carries it, though the concentration is not declared.Receipt10 sources on the row · rule R5, same reading on 9,843 products · open the receipt

The case for it

  1. Niacinamide has trial-supported standing for this concern.
  2. It is plausibly present at a working level, though the concentration is not declared.
  3. The formula carries no trigger this concern is sensitive to, with the cautions noted.

Moderate evidenceStandard tolerabilityNo reviews read yet

Cautions: a photosensitising active — use sun protection.

What would change this: A declared concentration would move this to a firmer reading of the dose.

Same rule for everyone. “Good choice” is the verdict on 10,340 of 45,446 concern verdicts across the catalog; rule R5 decided 9,843 of them. Unchanged since September 25, 2026, engine 5.2.0.

Brand or formulator? Disclose a concentration or correct a fact →

The full receipt: rule, row, sources, dates →All hyperpigmentation products →How hyperpigmentation is treated →

Promisingfor AgingNiacinamide has trial-level evidence for aging but no guideline or regulatory standing yet — promising, short of a recommendation; the other actives here are not yet assessed for it.Receipt6 sources on the row · concentration not declared; studied range 4–5% · row checked Jul 17, 2026 · rule R9p, same reading on 4,872 products · open the receipt

The case for it

  1. Niacinamide has at least one trial behind it for this concern but no guideline or regulatory standing yet.
  2. It is plausibly present at a working level, though the concentration is not declared.
  3. The formula carries no trigger this concern is sensitive to, with the cautions noted.

Moderate evidenceStandard tolerabilityNo reviews read yet

Cautions: a photosensitising active — use sun protection.

What would change this: A declared concentration would move this to a firmer reading of the dose.

Same rule for everyone. “Promising” is the verdict on 4,872 of 45,446 concern verdicts across the catalog; rule R9p decided 4,872 of them. Unchanged since September 25, 2026, engine 5.2.0.

Brand or formulator? Disclose a concentration or correct a fact →

The full receipt: rule, row, sources, dates →All aging products →

Avoidfor DehydrationThis formula carries drying alcohol — a known trigger for dehydration — so it is not a fit however good its actives are.Receiptread from the ingredient list: drying alcohol · rule R1, same reading on 1,307 products · open the receipt

The case for it

  1. Alcohol Denat. has no evidence row yet for this concern — it is in the research queue.
  2. The formula carries a known trigger for this concern, which decides the verdict before any efficacy question.

Not from a trial rowCarries a triggerNo reviews read yet

What would change this: Removing the trigger named above would let the actives be judged on their own.

Same rule for everyone. “Avoid” is the verdict on 1,912 of 45,446 concern verdicts across the catalog; rule R1 decided 1,307 of them. Unchanged since September 25, 2026, engine 5.2.0.

Brand or formulator? Disclose a concentration or correct a fact →

The full receipt: rule, row, sources, dates →All dehydration products →

Also listed for Dullness and Rough Texture — the actives here (Alcohol Denat., Niacinamide, Gluconolactone, Adenosine) are in our research queue for those concerns; there is no verdict until their evidence rows are written. That is a gap in our table, not a mark against the product.

Does the jobDoes what a toner is for: adds something real. Not measured from the label: restores skin pH, plays well with what follows.

Where our review and the verdict differ. The review below was written on the formulation and the published trials; the verdicts above apply the stricter standing test in our methodology — an active earns a recommendation only with guideline or regulatory standing for the concern. Where the two disagree, the verdict is Dermington’s position.

A verdict is Dermington’s assessment of how well a product’s ingredients fit a concern — never a claim about what the product treats. Evidence dots and collected reviews sit beside it and are never blended in. Rules 0.5.1 · evidence table ev-2026.10-r231 · engine 5.2.0 · how we decide · this product’s receipt

Reader poll · Town SquareQuestion 1 of up to 3

Have you used Cheongidan Rejuvenating Pro-Radiance Refining Essence?

One tap counts. A couple of optional follow-ups come next.

No account neededOne answer each, change it any timeCounted only in anonymous totalsHow the Square counts →
Assessment

Pros & cons

What it does well 6

  • Niacinamide fifth, likely at a working dose, with strong brightening and barrier evidence
  • Gluconolactone, sodium pyruvate and a protease give a gentle three-way daily refinement
  • Adenosine at the Korean functional dose for modest fine-line improvement
  • Deep humectant stack: trehalose, xylitol, erythritol, saccharide isomerate, panthenol
  • Weightless watery-gel texture that takes a serum cleanly
  • Oil-free, paraben-free and free of formaldehyde releasers

Where it falls short 6

  • Denatured alcohol third, ahead of glycerin, in a toner for mature skin
  • Fragrance declaring six allergens on top of three exfoliants
  • Pyruvate brightening claim outruns the published evidence
  • Fifty herbs, flavonoids and gold at the tail are the price, not the effect
  • Not for sensitive, rosacea-prone or barrier-compromised skin
  • Over a hundred dollars through importers, with no US brand store
Review

The full review

Read the first thirty ingredients and this could be a dermatologist-founded brand's exfoliating toner: niacinamide fifth, panthenol, xylitol, serine and trehalose for hydration, gluconolactone as a polyhydroxy acid, adenosine at the Korean functional dose, sodium pyruvate, a protease enzyme, allantoin and bisabolol to calm what the acids stir up. It is the most evidence-literate label in The History of Whoo's Cheongidan line and a real change from the brand's usual practice of putting the herbs first and the actives, if any, last. The second fifty ingredients are the brand as usual, the Cheongibidan prescription of roots, fruits, fungi and mistletoe with gold and a pearl at the end, and the third ingredient, denatured alcohol ahead of glycerin, is the one that decides which faces get to enjoy the first thirty. That is the whole shape of the review: a genuinely good refining toner, a fragrance and an alcohol dose that limit it, and a luxury price that pays for the half of the list that does the least.

The working half works. Niacinamide at fifth position, in an LG formula, is almost certainly a working dose, and it brings the brightening and barrier evidence that nothing else on the label can match; gluconolactone fifteenth is the gentlest of the exfoliating acids, a large polyhydroxy molecule that penetrates slowly and holds water while it loosens dead cells, and with sodium pyruvate and a protease behind it the essence delivers a mild, three-way daily refinement that smooths texture and clears the look of pores over three to four weeks without the flaking a glycolic toner brings. Adenosine adds a modest, well-documented effect on fine lines over two to three months, and the humectant stack, xylitol, erythritol, glycosyl trehalose, saccharide isomerate, hydrogenated starch hydrolysate, is deep and modern. The texture is a clear, watery gel that spreads with a cool glide, dries in a minute to a smooth, faintly plumped, almost matte surface and takes a serum cleanly; used twice daily, normal, combination and oily skin looks fresher within a week, smoother within a month and more even by the end of the second, which is niacinamide's known timeline and a fair one. It also behaves well as a first step: the gel leaves no film for a serum to fight, and the brand's suggestion of fingertips rather than a pad is the better one here, since a pad wastes a product this price and the alcohol evaporates faster from cotton than from skin.

The patented parts deserve a sober word. LG's Pyrujuven complex, built on sodium pyruvate, is credited with normalising overactive melanocytes, and pyruvic acid has a real history as a peel while pyruvate has laboratory data on cell metabolism; at twenty-seventh position in a leave-on the brightening claim outruns the published evidence, and the niacinamide in front of it is doing the measurable work. The Refining Complex is the acid, the pyruvate and the enzyme, which is a sound idea under a trademark. The Cheongibidan herbs, the ginseng, the Phellinus and Ganoderma mushrooms, the flavonoids chrysin, quercetin and kaempferol at the very tail, and the gold are laboratory-level at best and unmeasurable at these positions; they are why the bottle costs what it does, and a buyer should know that the money is going to the story.

The alcohol and the perfume are the reservations, and they are firm. Denatured alcohol third gives the gel its weightless dry-down and helps the actives in, and it is a real dose in a product sold for refinement to mature skin, so dry faces feel tightness by the third day and should follow it with a serum within a minute or choose the brand's non-exfoliating balancer instead; and the fragrance declares benzyl benzoate, hydroxycitronellal, geraniol, limonene, hexyl cinnamal and citronellol, six of the components patch-test clinics see most often, riding on alcohol and three exfoliants into skin that has just been loosened. For resilient skin this is a strong scent and a brief tingle; for rosacea-prone, eczema-prone or reactive skin it is the reason to buy a fragrance-free, alcohol-free polyhydroxy acid toner and keep the money.

On price, the brand has no US store, the Korean retail figure is 150,000 won, and US-facing importers list the 150 ml bottle at roughly a hundred to a hundred and thirty dollars, so somewhere around thirty-five to forty-five dollars a month at a cotton pad twice daily. The niacinamide, the acids, the adenosine and the humectants are worth having and would cost a fraction of that in any other bottle; the rest buys the herbs, the gold, the iridescent glass and the lineage. As a luxury toner with a clinician's first thirty ingredients, it is one of the more defensible bottles in the brand's range, and the honest recommendation is that resilient normal, combination and oily skin that wants the hanbang ritual with a real refining active inside it will be pleased, while everyone else can find the working half of this list for a fifth of the price.

The science

The evidence sits in the first thirty ingredients. Niacinamide at fifth position has a large clinical literature for improving hyperpigmentation, barrier lipid synthesis, sebum regulation and fine lines at 2 to 5 percent over eight to twelve weeks, and its placement here is consistent with such a dose. Gluconolactone is a polyhydroxy acid whose larger, multi-hydroxyl structure penetrates the stratum corneum more slowly than glycolic acid, giving gentler exfoliation with humectant and antioxidant properties; the 2004 Cutis study of a polyhydroxy acid regimen found antiaging effects comparable to an alpha-hydroxy acid regimen with better tolerance, and recent corneometric work on gluconolactone at 10 and 30 percent confirms its moisturising effect, though the concentration here is undisclosed and certainly far lower. Sodium pyruvate contributes a mild additional keratolytic and metabolic activity, and the protease enzyme loosens surface corneocyte bonds at cosmetic levels; together they explain the gradual refinement users report. Adenosine is registered by the Korean regulator as a functional wrinkle ingredient at 0.04 percent with modest clinical support for fine-line improvement.

The vehicle is a humectant-rich, alcohol-carried gel. Xylitol, erythritol, glycosyl trehalose, saccharide isomerate, serine and panthenol raise stratum corneum hydration, and panthenol, allantoin and bisabolol have anti-irritant evidence that partly offsets the acids; denatured alcohol at third position speeds drying and enhances penetration of the actives but extracts lipid with repeated use on dry or sensitised skin.

The herbal and patented claims lack clinical support. LG's Pyrujuven complex and the Cheongibidan herbal blend have no published human trials as topical formulations, the flavonoids chrysin, quercetin and kaempferol and the mushroom extracts sit at label-minimum positions, and gold is inert. The risk profile is defined by the fragrance, which declares six of the twenty-six labelled allergens studied in the 2017 Contact Dermatitis multicentre patch-test series, applied over alcohol and three exfoliants that increase penetration; chrysanthellum and soybean extracts add minor allergen risk. Polyhydroxy acids raise photosensitivity less than alpha-hydroxy acids but daily sunscreen remains advised.

References 3 ShowHide
  1. A polyhydroxy acid skin care regimen provides antiaging effects comparable to an alpha-hydroxyacid regimen — Cutis (2004)
  2. Corneometric evaluation of skin moisture after application of 10% and 30% gluconolactone — Skin Research and Technology (2021)
  3. Non-mix fragrances are top sensitizers in consecutive dermatitis patients - a cross-sectional study of the 26 EU-labelled fragrance allergens — Contact Dermatitis (2017)

The clinical view

A daily toner combining niacinamide with a polyhydroxy acid is a combination clinicians recognise and generally endorse for dull, uneven, mildly congested skin, and the first thirty ingredients here would draw approval from most dermatologists reading the label; the herbal second half, the gold and the patented complexes would be regarded as unsupported by trial evidence and irrelevant to outcomes at their positions. The reservations would be practical. Denatured alcohol third and a fragrance declaring six allergens make the product a poor choice for the rosacea-prone, eczema-prone and reactive patients who are common among mature-skin buyers, and those patients would be steered to a fragrance-free, alcohol-free polyhydroxy acid product. The essence should not be combined with a retinoid or a stronger acid on the same night, and daily sunscreen would be advised. For melasma the niacinamide is a reasonable adjunct and the acids a mild one, with the caveat that irritation from the alcohol and perfume can worsen pigment.

Formula

Key ingredients

  1. Niacinamide

    Fifth, ahead of the preservative and every humectant but glycerin, which in an LG formula usually means a working dose in the low single digits; it is the one brightening and barrier active on the label with strong independent evidence, and the reason this essence can claim tone and texture improvement without leaning on the herbs.

    Emerging for Hyperpigmentation
  2. Gluconolactone

    Fifteenth, the polyhydroxy acid at the heart of the brand's Refining Complex, gentler and more humectant than glycolic acid because its large, multi-hydroxyl molecule penetrates slowly; with sodium pyruvate and a protease enzyme lower down it makes a mild three-way exfoliation that refines texture over weeks rather than peeling.

    Not yet assessed
  3. Alcohol Denat.

    Third, ahead of glycerin, giving the watery gel its quick, weightless dry-down and helping the niacinamide and acids penetrate; at this position it is a real dose in a product sold for refinement and radiance to mature skin, and the reason the finish is crisp rather than dewy and the driest faces will find it tightening.

    Not yet assessed
  4. Adenosine

    Twenty-first, the Korean functional-cosmetic wrinkle active at the level the KFDA registers, with modest clinical evidence for fine-line improvement over two to three months; a quiet, well-evidenced inclusion in a formula that markets its herbs louder.

    Limited for Aging
  5. Fragrance

    The line's oriental-herbal perfume, declared with six allergens, benzyl benzoate, hydroxycitronellal, geraniol, limonene, hexyl cinnamal and citronellol, in a toner that carries alcohol third and three exfoliants; the strongest reason to keep this off reactive skin despite the bisabolol and allantoin on the label.

    Not yet assessed
Full ingredient list 82 ingredients ShowHide

Water, Butylene Glycol, Alcohol Denat., Glycerin, Niacinamide, 1,2-Hexanediol, Methylpropanediol, Xylitol, Serine, Panthenol, PEG-40 Hydrogenated Castor Oil, Xanthan Gum, Glycosyl Trehalose, Dipropylene Glycol, Gluconolactone, Hydrogenated Starch Hydrolysate, Viscum Album Extract, Saccharomyces Ferment Filtrate, Saccharide Isomerate, Lactobacillus/Soybean Ferment Extract, Adenosine, Sodium Citrate, Imperata Cylindrica Root Extract, Citric Acid, Trisodium EDTA, Tremella Fuciformis Polysaccharide, Sodium Pyruvate, Cetyl Ethylhexanoate, Erythritol, Asparagus Cochinchinensis Extract, Protease, Arginine, Hydrogenated Lecithin, Angelica Gigas Root Extract, Allantoin, Cornus Officinalis Fruit Extract, Thymus Vulgaris Extract, Glutamic Acid, Bisabolol, Chrysanthellum Indicum Extract, Lonicera Japonica Flower Extract, Ganoderma Lucidum Extract, Cnidium Officinale Root Extract, Cyperus Rotundus Root Extract, Gardenia Florida Fruit Extract, Lycium Chinense Fruit Extract, Panax Ginseng Root Extract, Gold, Polygonum Cuspidatum Root Extract, Glycoproteins, Angelica Tenuissima Root Extract, Atractylodes Japonica Rhizome Extract, Cuscuta Australis Seed Extract, Dioscorea Japonica Root Extract, Glycine Soja Seed Extract, Ledebouriella Divaricata Root Extract, Ophiopogon Japonicus Root Extract, Oryza Sativa Bran Extract, Paeonia Suffruticosa Root Extract, Polygonatum Officinale Rhizome/Root Extract, Poria Cocos Sclerotium Extract, Prunus Armeniaca Kernel Extract, Rehmannia Chinensis Root Extract, Sesamum Indicum Seed Extract, Trichosanthes Kirilowii Root Extract, Oryzanol, Phellinus Linteus Extract, Chrysin, Quercetin, Ethylhexylglycerin, Sodium Mannose Phosphate, Mannose, Gardenia Florida Flower Extract, Kaempferol, Fragrance, Benzyl Benzoate, Hydroxycitronellal, Geraniol, Limonene, Hexyl Cinnamal, Citronellol.

Safety & formulation facts

  • Pregnancy safe
  • Not fragrance free
  • Not alcohol free
  • Oil free
  • Silicone free
  • Paraben free
  • Sulfate free
  • Not cruelty free
  • Vegan
  • Not fungal-acne safe
Potential irritants Alcohol Denat.GluconolactoneSodium PyruvateProteaseFragranceBenzyl BenzoateHydroxycitronellalGeraniolLimoneneHexyl CinnamalCitronellol
Common allergens FragranceHydroxycitronellalGeraniolHexyl CinnamalCitronellolLimoneneBenzyl BenzoateChrysanthellum Indicum ExtractGlycine Soja Seed Extract
Compatibility

Skin types & routine

Routine step toner
Time of day Morning & night
Best season All year
Finish lightweight, fast-absorbing

Layering

The first step after cleansing in the line's order, on fingertips or a cotton pad, followed within a minute by a serum and moisturiser so the alcohol is not left to sit; it carries three mild exfoliants, so it should not share a routine with a retinoid or a stronger acid on the same night, and a morning sunscreen is not optional.

When to expect results

A weightless, crisp, slightly plumped feel within a minute and a fresher-looking surface within a week from the humectants and niacinamide; smoother texture and clearer-looking pores over three to four weeks from the polyhydroxy acid, pyruvate and enzyme trio; more even tone by eight to twelve weeks, which is the niacinamide's known timeline. Firming or wrinkle change beyond the adenosine's modest effect on fine lines is not supported by evidence for the herbal complex.

Pairs well with hyaluronic-acidceramidespeptideszinc-oxide
Don't combine with retinoidsglycolic-acidsalicylic-acidbenzoyl-peroxide

A routine built around it

Morning

  1. Gentle cleanser
  2. The History of Whoo Cheongidan Rejuvenating Pro-Radiance Refining Essencethis product
  3. Serum
  4. Moisturizer
  5. Sunscreen SPF 30+

Night

  1. Cleanser
  2. The History of Whoo Cheongidan Rejuvenating Pro-Radiance Refining Essencethis product
  3. Serum
  4. Emulsion or cream
Guidance

How to use it, and who it's for

How to use

Morning and evening after cleansing, as the first step, pour a small amount onto fingertips or a cotton pad and spread it from the centre of the face outward, avoiding the eyes; let it dry for a minute, then follow with a serum and moisturiser so the alcohol is not left on bare skin, and sunscreen in the morning. Keep it out of any night routine that carries a retinoid or a stronger acid, start at once daily on drier skin, and stop if tingling becomes stinging. Store away from heat and light, and buy through an established importer.

Is it worth the price?

With no US brand store, the 150 ml bottle sells through importers for roughly a hundred to a hundred and thirty dollars against a Korean retail price of 150,000 won, and at a cotton pad twice daily it lasts about three months, so thirty-five to forty-five dollars a month for a refining toner. The niacinamide, polyhydroxy acid, pyruvate, enzyme, adenosine and humectants are a genuinely good working formula that a clinical brand would sell for twenty to thirty dollars; the rest of the price buys fifty herbs at label doses, gold, an iridescent bottle and the lineage. Judged as a luxury object with a clinician's actives inside, it is one of the brand's more defensible purchases; judged as skincare, the measurable work is available for a fifth of the money without the alcohol and fragrance.

Who should buy it

Normal, combination and oily resilient skin that wants a luxurious first-step toner with real refining and brightening actives, niacinamide and a polyhydroxy acid trio, for dullness, rough texture, enlarged-looking pores and uneven tone; buyers building the Cheongidan routine, and anyone in the brand's range who wants its most evidence-literate bottle.

Who should skip it

Sensitive, rosacea-prone, eczema-prone or barrier-compromised skin, given alcohol third, three exfoliants and six declared fragrance allergens; very dry skin, which will find it tightening; anyone already on a nightly retinoid or stronger acid; and anyone who wants the niacinamide-and-PHA formula without the herbal premium, which a clinical brand sells for a fraction of the price.

Ready to try it?The History of Whoo Cheongidan Rejuvenating Pro-Radiance Refining Essence · 150 ml / 5.07 fl oz
Details

The product, in detail

Texture
A clear, watery gel with a faint pearl, thinner than a serum and heavier than a toner, that spreads with a cool, slippery glide, dries within a minute with a crisp alcohol lift and leaves a smooth, faintly plumped, almost matte finish.
Scent
The line's oriental-herbal perfume, lighter than the Cheonyuldan tier's, with a floral-citrus top over incense and ginseng, strong on application and fading within ten minutes.
Packaging
A heavy, iridescent pearl-white glass bottle shading to pink and green, with a tall fluted silver cap crowned by a red enamel ornament, 150 ml; the pour aperture is small, the bottle is not refillable, and its weight is part of the price.
How long it lasts
About three months at a cotton pad twice daily; nearer four pressed in with fingertips.
Once opened
Use within 12 months · track your toss-by date →
Size
150 ml / 5.07 fl oz
Made in
South Korea
Launched
July 2025

What the first two weeks feel like

The first application is cool, quick and faintly tingling, with a whiff of alcohol under the perfume and a surface that feels smoother and tighter within a minute; the acids are mild enough that most normal and oily skin notices refinement rather than flaking in the first week, while reactive or dry skin feels the alcohol as tightness by the third day. Nothing purges, and the niacinamide's brightening arrives quietly over the second month.

The story behind it

Why it exists

Cheongidan is The History of Whoo's gold-clad prestige line, one step below Cheonyuldan, and its refining essence has been the brand's answer to the Western exfoliating toner since the Illuminating Refining Essence of April 2021; the July 2025 Rejuvenating Pro-Radiance rebuild, pre-launched in Singapore that February, folded in LG's Pyrujuven brightening patent and a renamed Refining Complex, changed the bottle to an iridescent pearl and reset the Korean price at 150,000 won. It is the line's first step, meant to prepare skin for the Cheongidan serums and creams.

About The History of Whoo Established Brand (5–20 years)

The History of Whoo is LG Household & Health Care's luxury hanbang brand, launched in 2003 on Korean royal-court herbal prescriptions. This Refining Essence is the July 2025 successor to the Cheongidan Illuminating Refining Essence of 2021, rebuilt around LG's patented brightening and refining complexes; LG publishes no independent clinical data for it, and the brand's standing rests on the parent company's research resources and two decades of prestige retail in Asia.

Brand founded 2003 · This product since 2025

Myth vs. reality

What people get wrong about it

MythThe fifty-herb Cheongibidan prescription and the gold are what refine and brighten the skin.

RealityNiacinamide, gluconolactone, sodium pyruvate, a protease and adenosine, all in the first thirty ingredients, are the refining and brightening; the herbs occupy the second half of the list at doses that cannot be measured and the gold is a shimmer. The label is unusually honest about this, since the evidence-backed actives are placed where they can work.

MythA polyhydroxy acid toner is gentle enough for sensitive skin.

RealityGluconolactone is the gentlest exfoliating acid, but this bottle puts it beside sodium pyruvate, a protease, denatured alcohol third and a fragrance declaring six allergens. Resilient skin will find it a gentle daily refiner; rosacea-prone, eczema-prone or reactive skin will find the alcohol and perfume before the acid.

FAQ

Questions people ask

Is the Cheongidan Rejuvenating Pro-Radiance Refining Essence the same as the Illuminating Refining Essence?

It is the successor. The Illuminating Refining Essence launched in April 2021 and was replaced in July 2025 by this rebuilt version with LG's Pro-Radiance and Refining complexes and a new iridescent bottle; the core idea, a first-step toner with niacinamide, a polyhydroxy acid, pyruvate and an enzyme, carries over.

Does the Cheongidan Refining Essence exfoliate?

Gently, yes. Gluconolactone, a polyhydroxy acid, sodium pyruvate and a protease enzyme sit in the first thirty ingredients and refine texture and pores over three to four weeks of daily use; it is a daily refiner rather than a peel, and it should not share a night with a retinoid or a stronger acid.

Does the Cheongidan Refining Essence contain alcohol?

Yes, denatured alcohol is the third ingredient, ahead of glycerin, which gives the watery gel its weightless dry-down and helps the actives penetrate. Normal, combination and oily skin tolerate it; dry and reactive skin will feel tightness, and a serum should follow within a minute.

What is the difference between the Cheongidan Refining Essence and the Radiant Rejuvenating Balancer?

Both are first-step Cheongidan liquids, but the Refining Essence is built for texture and tone, with niacinamide, a polyhydroxy acid, pyruvate and an enzyme, while the Balancer is a hydrating toner with ginseng and the herbal base and no exfoliants. Choose the Refining Essence for dullness, pores and uneven tone, and the Balancer for plain hydration.

Is the Cheongidan Refining Essence good for sensitive skin?

Not a good match. It combines alcohol third, three mild exfoliants and a fragrance declaring six allergens, and the bisabolol and allantoin on the label do not offset that; sensitive, rosacea-prone or eczema-prone skin should choose a fragrance-free, alcohol-free polyhydroxy acid toner instead.

How much does the Cheongidan Refining Essence cost in the US?

The brand has no US store; the Korean retail price is 150,000 won and US-facing importers list the 150 ml bottle at roughly a hundred to a hundred and thirty dollars. Buy from an established Korean-beauty importer, since the line's price attracts counterfeits.

Reviews

What shoppers tend to say

Recurring themes our editors read across retailer reviews — summaries in our words, not quotations, and not a substitute for a patch test.

Common praise

  • Skin feels smoother and looks clearer within weeks
  • Weightless gel-water texture
  • Noticeably brighter tone over a couple of months

Common complaints

  • Alcohol and acids sting on reactive skin
  • Strong fragrance
  • Expensive for a first-step essence
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