Isa Knox True Foaming Facial Cleanser 180ml tube
Not yet assessed for Dullness
What makes this different

It's a department-store soap-based foam dressed in LG's anti-aging botanical story — bamboo powder and juice for a polishing touch, plus a fermented wine-and-pomegranate-vinegar 'Black Vino' complex and sacha inchi oil that soften the clean-down. More considered than a drugstore soap foam, if still fundamentally a saponified cleanser.

Isa Knox

Isa Knox True Foaming Facial Cleanser Review

Botanical Cream Foam Cleansers foam k beauty Paraben free Not cruelty free

A pleasant, creamy soap-based foam from LG's premium Isa Knox line, dressed up with bamboo and a fermented wine-and-vinegar 'anti-aging' story. It rinses softer than most soap cleansers thanks to olive and sacha inchi oils, and the lather is genuinely satisfying. But the botanical actives wash off too fast to do anti-aging work, and the fragrance and synthetic dyes keep it from being a sensitive-skin pick.

Price $22.00 180ml
Shopper rating 4.3 ★★★★★ 200 reviews
Buy at Amazon ♥
Verdicts

How well it fits each concern

This cleanser is backed by LG's formulation resources but has a modest independent review base across Amazon and K-beauty retailers and no published trials, so the score rests on its verified soap-and-botanical ingredient list, the emollient oils that soften the clean-down, and the brand's department-store tier rather than large-scale user data. Your experience will depend mainly on how your skin handles the soap base and added fragrance.

No concern verdicts yet.

The scaleRecommendedGoodSupportingEarly evidenceNot for thisAvoidhow it works

Listed for Dullness, Aging and Dryness — the actives here (Bamboo, Botanical Extracts, Plant & Seed Oils, Cleansing Surfactants) 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 cleanser is for: puts something back, surfactant mildness. Not measured from the label: pH match to skin.

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

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Assessment

Pros & cons

What it does well 7

  • Rich, creamy, satisfying soap-based lather
  • Rinses softer than most soap foams thanks to plant oils
  • Bamboo powder adds a gentle polishing touch
  • Pleasant botanical scent
  • Sulfate-free and alcohol-free
  • Efficient lather makes the tube last for months
  • Backed by LG's premium formulation infrastructure

Where it falls short 5

  • Anti-aging botanicals wash off too fast to work
  • Added fragrance limits it for sensitive skin
  • Contains synthetic dyes (Yellow 5, Blue 1)
  • Soap base can feel brisk on dry or reactive skin
  • Premium price for a fundamentally soap-based foam
Review

The full review

There's a small contradiction baked into the idea of an anti-aging cleanser, and Isa Knox's True Foaming Facial Cleanser is a good place to examine it. The premise of any anti-aging product is that active ingredients spend time on your skin, penetrating and signaling and repairing over weeks of consistent use. The premise of a cleanser is that you apply it, work it around for maybe forty-five seconds, and rinse it completely down the drain. Those two premises don't fit together very well. So when a premium brand like Isa Knox — LG Household & Health Care's department-store anti-aging label — builds a cleanser around a fermented wine complex and bamboo and calls it part of a skin-renewal routine, the honest reviewer's job is to separate what the product genuinely does from the story on the box.

Let's start with what it actually is underneath the marketing: a soap-based foaming cleanser. The first and fifth ingredients are myristic and stearic acid, saponified with potassium hydroxide — the classic Korean cream-to-foam construction that produces a dense, pearly, luxurious lather. This is the same fundamental chemistry as countless other foaming cleansers, and it cleans thoroughly and satisfyingly. What Isa Knox does better than a bargain soap foam is soften the edges: there's cocamidopropyl betaine and a coconut-derived taurate to gentle the surfactant action, plus olive fruit oil and sacha inchi (African walnut) seed oil to cushion the clean-down. The result is a foam that rinses to a noticeably softer, less stripped finish than a bare soap cleanser, which is a real and appreciable quality. If you like the rich-lather experience but hate the tight squeak afterward, this threads that needle reasonably well.

The botanical story is where expectations need managing. The 'Black Vino Aging' complex — fermented wine extract, pomegranate vinegar, sacha inchi oil — plus bamboo stem powder and juice and a touch of Trichosanthes root are the ingredients the marketing leans on. Some of these are genuinely nice inclusions: bamboo powder adds a mild polishing texture, and bamboo is silica-rich and conditioning. But the fermented wine and vinegar extracts, the ones doing the anti-aging narrative work, sit near the very end of the ingredient list, below the colorants, in a product that contacts your skin for under a minute before rinsing. They contribute antioxidant polyphenols in principle, but the dose and contact time mean they can't firm, renew, or rejuvenate anything. That's not a knock on the cleanser's quality — it's just the reality of rinse-off chemistry, and it's worth being clear about so you don't buy this expecting your serum's job from your face wash.

A couple of honest caveats round out the picture. The cleanser contains added fragrance fairly high in the list — a pleasant botanical scent that rinses away, and most people will enjoy it, but it's the main reason this isn't a sensitive-skin recommendation. There are also two synthetic dyes, Yellow 5 and Blue 1, that give the product its faint green tint. They're purely cosmetic, common, and considered safe in rinse-offs, but if you're someone who prefers to avoid synthetic colorants on principle, they're there, and in an 'anti-aging' premium product they feel a little unnecessary. Between the fragrance, the dyes, and the soap base, reactive and barrier-compromised skin has reason to look elsewhere.

In use, it's a pleasant daily cleanser. A small amount of the pearly green cream lathers into a rich, cushiony foam, cleans without drama, and rinses to that softer-than-expected finish. The botanical scent is genuinely nice. It works well as a morning cleanse and as the second step of an evening double cleanse after an oil cleanser or the brand's own Turnover 28 cleansing cream. Because it lathers efficiently, the 180ml tube stretches three to four months. There's nothing to dislike about the experience for normal-to-dry, non-sensitive skin, and the faint green color and botanical aroma give it a small sense of occasion most plain cleansers lack.

On value, this is where the premium positioning gets scrutinized. At its price for 180ml, you're paying a department-store markup for what is, at its core, a well-made soap-based foam with a botanical garnish. Compared to drugstore soap cleansers it's nicer — softer finish, pleasant scent, the bamboo touch — but compared to other gentle cleansers in its price bracket, you're partly paying for the LG brand and the anti-aging story rather than a uniquely effective formula. My recommendation: if you specifically like a rich, creamy soap foam that rinses soft, enjoy a botanical scent, and you're already invested in the Isa Knox Turnover routine, this is a perfectly nice cleanser to anchor it. If you have sensitive skin, want fragrance-free, or are value-focused, you can get an equally good or gentler cleanse for less — and you should ignore the anti-aging claims either way, because they belong to your leave-on steps, not your face wash.

The science

The cleansing chemistry is straightforward soap-making: myristic and stearic fatty acids neutralized with potassium hydroxide form potassium soaps that cleanse efficiently at an alkaline pH, with cocamidopropyl betaine and sodium methyl cocoyl taurate added as milder co-surfactants to reduce harshness. Higher-pH soap cleansing removes sebum thoroughly but transiently disrupts the acid mantle more than a pH-balanced syndet, which is why the emollient additions matter: olive fruit oil and Plukenetia volubilis (sacha inchi) seed oil deposit a thin lipid layer that measurably softens the post-cleanse feel, the mechanistic basis for the 'non-drying' claim. Bamboo (Bambusa arundinacea) stem powder provides mild physical polishing and is silica-rich, with limited but plausible conditioning value. The anti-aging botanicals — fermented wine extract and pomegranate vinegar — contain polyphenols and trace acids with antioxidant and mild exfoliating activity in isolation, but their position near the end of a rinse-off list and the sub-minute contact time mean there is no plausible mechanism for the firming or renewal the line's name implies; in a leave-on at higher concentration the story would differ. Tocopheryl acetate adds antioxidant support. The synthetic dyes (Yellow 5, Blue 1) are cosmetic colorants with no skin benefit. The fair scientific read: a competent, emollient-buffered soap cleanser whose botanical anti-aging actives function as marketing rather than mechanism in a rinse-off format.

The clinical view

Soap-based foaming cleansers buffered with emollient oils occupy a familiar place in cleansing — effective and satisfying, with a softer finish than unmodified soap, suitable for normal-to-dry skin that tolerates a thorough wash. Clinical thinking tends to evaluate a cleanser by what it avoids doing to the barrier, and an alkaline soap base, even a softened one, is generally steered away from sensitive, eczema-prone, or compromised skin in favor of pH-balanced syndets. The fragrance and synthetic dyes are the additions dermatology would flag for reactive individuals, since both can occasionally sensitize, making a fragrance-free option preferable there. The marketed anti-aging botanicals are regarded as cosmetically negligible in a rinse-off, with the real renewal work attributed to leave-on retinoids, antioxidants, and consistent sunscreen use. General guidance is to use it once or twice daily, follow with moisturizer, and pre-cleanse with an oil or cream cleanser at night to remove makeup and sunscreen, treating this as a gentle-finishing second cleanse.

Formula

Key ingredients

  1. Soap-Based Fatty Acid Surfactants (Myristic & Stearic Acid, Potassium Hydroxide)

    The cleansing engine — fatty acids saponified with potassium hydroxide to create the dense, creamy lather this cleanser is built around, softened with cocamidopropyl betaine and a coconut taurate to take the edge off the otherwise brisk soap clean-down.

    Not yet assessed
  2. Bamboo (Bambusa Arundinacea) Stem Powder & Juice

    The brand's signature botanical, appearing as both fine stem powder and bamboo juice to lend a mild polishing texture and a silica-rich conditioning note, marking this as a botanical cleanser rather than a plain soap foam.

    Not yet assessed
  3. Black Vino Aging Complex (Wine Extract, Pomegranate Vinegar, Sacha Inchi)

    The anti-aging signature of the Turnover line — fermented wine and pomegranate vinegar with sacha inchi seed oil, included to add antioxidant polyphenols and a gentle exfoliating, revitalizing character to the cleansing step, though at trailing levels in a rinse-off.

    Not yet assessed
  4. Olive & Sacha Inchi Oils

    Emollient plant oils that cushion the soap base, helping the foam rinse to a softer, less stripped finish and supporting the 'non-drying' positioning the brand leans on for this cleanser.

    Not yet assessed
Full ingredient list 31 ingredients ShowHide

Myristic Acid, Water, Glycerin, Dipropylene Glycol, Stearic Acid, Potassium Hydroxide, Glycol Distearate, Cocamidopropyl Betaine, PEG-100 Stearate, Glyceryl Stearate, Sodium Methyl Cocoyl Taurate, Fragrance, PEG-40 Hydrogenated Castor Oil, Betaine, Bambusa Arundinacea Stem Powder, Hydrogenated Polydecene, 1,2-Hexanediol, Tocopheryl Acetate, Polyquaternium-7, Olea Europaea (Olive) Fruit Oil, Trisodium EDTA, Plukenetia Volubilis Seed Oil, Vinegar, Butylene Glycol, Betula Platiphilla Japonica Juice, Bambusa Arundinacea Juice, Trichosanthes Kirilowii Root Extract, Yellow 5 (CI 19140), Wine Extract, Blue 1 (CI 42090)

Safety & formulation facts

  • Pregnancy safe
  • Not fragrance free
  • Alcohol free
  • Not oil free
  • Silicone free
  • Paraben free
  • Sulfate free
  • Not cruelty free
  • Not vegan
  • Not fungal-acne safe
Potential irritants FragranceYellow 5Blue 1
Common allergens Fragrance
Compatibility

Skin types & routine

Routine step cleanser
Time of day Morning & night
Best season All year
Finish non-greasy, velvety

Layering

Lather a small amount in wet hands first; it works as a morning cleanse or the second step of an evening double cleanse after an oil cleanser or the brand's own cleansing cream.

When to expect results

Immediate: skin feels thoroughly clean with a softer, less tight finish than a typical soap foam. Ongoing: as a daily cleanser it keeps skin comfortable, though the antioxidant botanicals are too brief-contact in a rinse-off to deliver the anti-aging benefits the line markets.

Pairs well with bamboo-extractniacinamidehyaluronic-acid

A routine built around it

Morning

  1. Isa Knox True Foaming Facial Cleanserthis product
  2. Toner
  3. Serum
  4. Moisturizer
  5. Sunscreen

Night

  1. Cleansing cream or oil cleanser
  2. Isa Knox True Foaming Facial Cleanserthis product
  3. Toner
  4. Treatment
  5. Moisturizer
Guidance

How to use it, and who it's for

How to use

Start with lukewarm water on the face, then squeeze a small amount into wet hands and work it into a rich lather before applying. Massage the foam over the skin for fifteen to twenty seconds, avoiding the eye area, then rinse thoroughly. Use it as a standalone cleanse in the morning; at night, pre-cleanse with an oil cleanser or the brand's Turnover 28 cleansing cream to remove makeup and sunscreen, then follow with this foam as the second step. Pat skin dry and move into your toner and serums while still slightly damp. If your skin runs dry or reactive, once daily may suit it better than twice.

Is it worth the price?

At its department-store price for 180ml, this cleanser carries a premium that reflects the LG brand and the anti-aging positioning more than a uniquely effective formula. What you're buying is a well-made, emollient-softened soap foam with a pleasant scent and a bamboo touch — genuinely nicer than a drugstore soap cleanser, but not dramatically more effective than other gentle cleansers in its bracket, several of which are fragrance-free and cheaper. Because the lather is efficient, the tube lasts three to four months, which softens the cost per use. If you value the rich soap-foam experience and the brand's botanical story, the price is defensible; if you're value-focused or want a sensitive-skin-friendly formula, you can match or beat its cleansing quality for less. The anti-aging claims shouldn't factor into the value calculation, since a cleanser can't deliver them.

Who should buy it

Normal, combination, and dry skin that enjoys a rich, creamy soap-foam lather but wants a softer finish than typical soap cleansers provide. It suits anyone already using the Isa Knox Turnover 28 routine who wants a matching cleanser, and those who appreciate a pleasant botanical scent and a touch of bamboo polishing.

Who should skip it

Sensitive, eczema-prone, or barrier-compromised skin should skip it given the soap base, fragrance, and synthetic dyes, and choose a fragrance-free syndet cleanser instead. Value-focused shoppers and anyone hoping a cleanser will deliver real anti-aging benefits should also look elsewhere, since the price is premium and the renewal claims don't survive a rinse-off.

Ready to try it?Isa Knox True Foaming Facial Cleanser · $22.00 · 180ml
Details

The product, in detail

Texture
A creamy, pearly wash that whips into a dense, cushiony foam and rinses to a clean but reasonably soft finish for a soap-based formula.
Scent
A pleasant botanical-fresh fragrance that rinses away cleanly.
Packaging
A 180ml squeeze tube with a faint green tint to the product from the added colorants; standard, travel-friendly packaging.
How long it lasts
The 180ml tube typically lasts about three to four months with once- or morning and night, since a small amount lathers generously.
Once opened
Use within 12 months · track your toss-by date →
Size
180ml
Made in
South Korea

What the first two weeks feel like

First use lathers into a rich, satisfying foam and rinses to a softer-than-expected finish, thanks to the olive and sacha inchi oils buffering the soap base. There's a pleasant botanical scent and no sting for most, though the fragrance and dyes are worth noting for reactive skin.

The story behind it

Why it exists

Isa Knox, LG's premium anti-aging brand, built its Turnover 28 line around the skin's roughly 28-day renewal cycle, and this cleanser is the entry point — a botanical foam meant to start that routine with bamboo and fermented-fruit extracts rather than a bare detergent wash.

About Isa Knox Legacy Brand (20+ years)

Isa Knox is a premium anti-aging brand from LG Household & Health Care, launched in 2004 and named after a real cosmetic scientist. Backed by a major conglomerate's research resources, it sits in the department-store tier, with credibility resting on LG's formulation infrastructure rather than published independent trials.

Brand founded 2004

Myth vs. reality

What people get wrong about it

MythThe anti-aging wine and pomegranate extracts in this cleanser will firm or rejuvenate your skin.

RealityThose fermented botanicals sit near the end of a rinse-off cleanser and wash away in under a minute, so they're a brand-story flourish — the real anti-aging work belongs to leave-on serums and treatments, not a cleanser.

FAQ

Questions people ask

Is the Isa Knox True Foaming Facial Cleanser gentle or drying?

It's a soap-based foam, so it cleans thoroughly and can feel brisk, but olive and sacha inchi oils plus betaine soften the finish more than a typical soap cleanser. Most normal-to-dry skin finds it comfortable, while very sensitive skin may prefer a syndet wash.

What is the 'Black Vino Aging' complex in this cleanser?

It's the brand's name for a blend of fermented wine extract, pomegranate vinegar, and sacha inchi (African walnut) oil. It adds antioxidant polyphenols and a revitalizing story, though in a rinse-off cleanser these sit at trailing levels and wash away quickly.

Does the Isa Knox cleanser remove makeup?

It handles light makeup and sunscreen as part of a routine, but as a foaming cleanser it's not built to break down heavy or waterproof makeup alone. Use an oil cleanser or the brand's own Turnover 28 cleansing cream first, then follow with this foam.

Why does the cleanser have a green tint?

The faint green color comes from added cosmetic dyes (Yellow 5 and Blue 1) rather than the botanicals. They're purely aesthetic; if you prefer to avoid synthetic colorants, that's worth noting, though they're common and considered safe in rinse-off products.

Is the Isa Knox foaming cleanser good for anti-aging?

As a cleanser, its anti-aging role is limited — the fermented wine and bamboo extracts wash off too quickly to firm or renew skin. It's a pleasant first step in an anti-aging routine, but the actual results come from leave-on serums, treatments, and sunscreen.

Does this cleanser contain fragrance?

Yes, it has added fragrance fairly high in the list, giving it a pleasant botanical scent that rinses away. Most people enjoy it, but fragrance-sensitive or reactive skin should patch test or choose a fragrance-free cleanser instead.

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

  • Rich, creamy foam
  • Softer finish than typical soap cleansers
  • Pleasant botanical scent

Common complaints

  • Added fragrance and dyes
  • Soap base can feel brisk on dry skin
  • Premium price for a foaming cleanser
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