Numbuzin No. 1 Easy Peasy Cleansing Oil pump bottle with green and white label
Supporting role for Blackheads
What makes this different

A notably minimalist cleansing oil formula — just 13 ingredients compared to the 20-30 found in most K-beauty cleansing oils. The corn oil base is an uncommon but effective choice, offering a lighter texture than the olive or mineral oil bases commonly used in cleansing oils. The triple plant oil system (corn, macadamia, sunflower) provides effective makeup dissolution with a texture that's closer to water than the thick, heavy cleansing oils that dominate the market.

Numbuzin

Numbuzin No. 1 Easy Peasy Cleansing Oil Review

K-Beauty Double-Cleanse Essential Cleansers oil k beauty Paraben free Cruelty free Vegan

Numbuzin's Easy Peasy Cleansing Oil lives up to its name — a lightweight, fast-emulsifying oil that dissolves makeup and sunscreen in under a minute with a pleasantly fluid texture. The 13-ingredient minimalism and generous 200 ml size make it great value, though the fragrance and comedogenic isopropyl myristate keep it from being universally recommended.

Price $19.50 6.76 fl oz / 200 ml
Shopper rating 4.3 ★★★★★ 1,200 reviews
On the market 2021 Made in South Korea
Buy at Amazon ♥
Verdicts

How well it fits each concern

Note: Numbuzin launched in 2019 and this cleansing oil has been available since approximately 2021. Our assessment is based on ingredient analysis and moderate review volume. We'll update as more data becomes available.

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

The scaleRecommendedGoodSupportingEarly evidenceNot for thisAvoidhow it works

Supporting rolefor BlackheadsNothing here targets blackheads directly; gentle cleansing is the recognised companion to treating it, and this oil does that without known triggers.ReceiptMacadamia Ternifolia Seed Oil: no evidence row for this concern yet · rule R8, same reading on 3,793 products · open the receipt

The case for it

  1. Macadamia Ternifolia Seed Oil has no evidence row yet for this concern — it is in the research queue.
  2. The formula carries no trigger this concern is sensitive to, with the cautions noted.

Not from a trial rowStandard tolerabilityNo reviews read yet

Cautions: fungal-acne triggers.

What would change this: A researched evidence row for the lead active would replace this with a verdict.

Same rule for everyone. “Supporting role” is the verdict on 7,796 of 45,446 concern verdicts across the catalog; rule R8 decided 3,793 of them. Unchanged since September 5, 2026, engine 5.2.0.

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

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

Also listed for Large Pores — the actives here (Macadamia Oil, corn oil, Sunflower Oil, Vitamin E) are in our research queue for that concern; there is no verdict until their evidence rows are written. That is a gap in our table, not a mark against the product.

As a cleanserNot judged: what a cleanser is for — surfactant mildness, pH match to skin, rinses clean without stripping — cannot yet be measured from the ingredient list (only puts something back can).

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

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Assessment

Pros & cons

What it does well 6

  • Lightweight, fluid texture that's notably less heavy than most K-beauty cleansing oils
  • Fast-emulsifying formula rinses clean in one pass without greasy residue
  • Minimalist 13-ingredient formula with a triple plant oil cleansing base
  • Excellent value at $19.50 for 200 ml — lasts 3-4 months of nightly use
  • Effectively dissolves waterproof makeup, sunscreen, and sebum plugs
  • Clinical data showing 94.39% removal of pore-clogging waste

Where it falls short 5

  • Contains fragrance — inconsistent with the sensitive-skin No. 1 line positioning
  • Isopropyl myristate is comedogenic and may trigger breakouts in acne-prone skin
  • Can cause eye stinging and irritation during eye makeup removal
  • Not the best choice for very sensitive or fungal acne-prone skin
  • Fragrance and comedogenic ingredient exclude it from many 'clean' skincare routines
Review

The full review

Double cleansing — the two-step method of using an oil-based cleanser followed by a water-based one — is the bedrock of Korean skincare routines. It's also the step most likely to be skipped, because who wants to spend five minutes wrestling with a thick, heavy oil that refuses to emulsify and leaves a greasy film on skin that takes three rinses to remove? Numbuzin designed the Easy Peasy Cleansing Oil as an antidote to that frustration, and the product name is basically a mission statement: make oil cleansing fast, clean, and effortless.

The formula is strikingly minimal. Thirteen ingredients. For a cleansing oil — a category known for long lists packed with botanical extracts, emulsifiers, and various oils — this is spare. Corn oil forms the base, an uncommon but smart choice. It's lighter in texture than the olive, mineral, or camellia oils that dominate K-beauty cleansing oils, which gives this product a notably fluid, almost water-like consistency when you pump it into your hands. If you've avoided oil cleansing because you don't like the heavy, viscous feel of traditional cleansing oils, this product might change your mind.

Macadamia seed oil and sunflower seed oil round out the plant-oil base, with a little tiger nut (cyperus esculentus) oil and light ester emollients — diisostearyl malate and ethylhexyl palmitate — thinning the whole system further. Macadamia brings palmitoleic acid and a luxurious slip that makes the massage step genuinely pleasant. Sunflower oil adds linoleic acid content, which research has shown supports barrier function rather than disrupting it. Together they create a lipid-dissolving system that tackles everything from waterproof mascara to zinc oxide sunscreen.

The emulsifying system — sorbeth-30 tetraoleate and sorbitan sesquioleate — is designed for fast, clean rinsing. Add water to the oil and it transforms almost immediately into a milky emulsion that washes away without the oily residue that plagues many cleansing oils. This isn't a product that needs three rounds of water splashing to feel clean. One good rinse, and it's gone.

Clinical testing claims that the formula removes 94.39% of pore-clogging waste, and while brand-sponsored studies should be taken with appropriate skepticism, the basic principle is sound: oil dissolves oil. That principle also settles the most common fear about the category — that oil cleansers will clog pores and break out oily or acne-prone skin. 'Like dissolves like' means an oil cleanser actually lifts away the excess sebum and oxidized oils that clog pores in the first place. The one genuine caveat sits inside this specific formula rather than the concept, and it's addressed below. Users consistently report visible grits — those satisfying little plugs of dissolved sebum and dead skin — during the massage step, particularly on the nose and chin. Regular oil cleansing can help keep sebaceous filaments under control and reduce the appearance of blackheads over time.

The texture during use is genuinely distinctive. Most cleansing oils feel thick and somewhat heavy on the skin. This one is fluid and light — closer to a dry oil than a traditional cleansing oil. It glides across the face with minimal drag, making the 30-60 second massage comfortable rather than a chore. And it's worth stressing that oil cleansing earns its place even on no-makeup days: if you wear sunscreen — and you should — the mineral and chemical residues it leaves behind aren't fully cleared by a water-based wash alone, and oil cleansing lifts accumulated sebum and pollution more effectively than water ever could. The 'only if you wear makeup' framing sells the step short.

There are two clear drawbacks to discuss honestly. First: fragrance. For a product designed for the calming, soothing No. 1 line, the inclusion of fragrance is inconsistent. Multiple users note the scent — and some report that it contributes to eye irritation during makeup removal around the eye area. A fragrance-free version would be an obvious improvement and more consistent with the line's sensitive-skin positioning. Second: isopropyl myristate. This synthetic ester is excellent at dissolving sebum and makeup — one of the most effective solvents in cosmetic chemistry — but it's also rated comedogenic, and it's the reason this formula isn't fungal-acne-safe and may clog pores in acne-prone individuals. For a brand targeting trouble-prone skin with its No. 1 line, that's a puzzling choice; if you know your skin reacts to isopropyl myristate, choose a different cleansing oil.

For everyone else, the Easy Peasy Cleansing Oil is an excellent, affordable first step in a double-cleanse routine. At $19.50 for 200 ml, with each cleanse requiring just 2-3 pumps, the bottle lasts three to four months of nightly use — under $6 a month for effective makeup and sunscreen removal, hard to argue with. Its review base is still moderate at around a thousand entries, but it skews positive and consistent: effortless makeup removal and the light, non-sticky texture praised, the fragrance and the isopropyl myristate the recurring reservations.

The product doesn't pretend to be more than it is. It's not a treatment, it's not going to transform your skin, and it makes no grand promises about luxury or innovation. It's a well-designed cleansing oil that does its job quickly and cleanly, and then gets out of the way so the rest of your routine can work. Easy peasy indeed.

The science

Oil cleansing operates on the fundamental chemistry principle that 'like dissolves like' — lipophilic (oil-loving) substances dissolve other lipophilic substances. Makeup, sunscreen, and excess sebum are all oil-based or oil-soluble, meaning they dissolve more effectively in oil than in the surfactant solutions used by traditional water-based cleansers.

Corn oil, the formula's primary ingredient, is rich in linoleic acid (approximately 55-60% of its fatty acid profile). A clinical trial reported in Pediatric Dermatology has demonstrated that linoleic acid-rich oils are less likely to disrupt the skin barrier compared to oleic acid-dominant oils like olive oil. This makes corn oil a particularly suitable base for a cleansing product designed for daily use on potentially sensitive or acne-prone skin.

The emulsification system — sorbeth-30 tetraoleate and sorbitan sesquioleate — uses non-ionic surfactants that reduce the surface tension between oil and water, creating the milky emulsion when water is added. These emulsifiers have an HLB (hydrophilic-lipophilic balance) value designed to facilitate complete oil removal during rinsing, which is critical for preventing clogged pores from residual oil.

Isopropyl myristate is one of the most effective solvents in cosmetic chemistry for dissolving sebaceous material. Research has shown it has a high comedogenicity rating (4-5 on the 0-5 scale) in rabbit ear models, though human skin reactivity varies. Its inclusion significantly boosts the cleansing power of the formula but introduces a trade-off for clog-prone skin.

The clinical view

Dermatologists generally support oil cleansing as an effective method for removing oil-based impurities, particularly sunscreen residues that water-based cleansers often leave behind. Practicing dermatologists frequently note that the double-cleanse method — oil cleanser followed by a water-based cleanser — is one of the most thorough approaches to evening skin cleansing. However, dermatologists typically caution that cleansing oils containing isopropyl myristate should be avoided by patients with active acne or a history of comedonal breakouts. For non-acne-prone patients, this formula's lightweight texture and effective emulsification represent a well-designed daily cleansing step.

Formula

Key ingredients

  1. Corn Oil

    The primary cleansing base of this formula, corn oil dissolves makeup, sunscreen, and excess sebum through the principle of 'like dissolves like.' Its high linoleic acid content makes it particularly compatible with the skin's natural oils, allowing it to break down impurities without disrupting the lipid barrier. Positioned first on the INCI list, it makes up the majority of the formula.

    Not yet assessed
  2. Macadamia Ternifolia Seed Oil

    A luxurious, palmitoleic acid-rich oil that adds emollient depth to the cleansing formula. In this product, macadamia oil contributes to the silky slip that makes massage-based cleansing comfortable while also helping to dissolve stubborn, oil-based impurities like waterproof mascara and long-wear foundation.

    Not yet assessed
  3. Sunflower Seed Oil

    Provides additional linoleic acid-rich cleansing power and skin-barrier support. In this triple-oil formula, sunflower oil complements the corn and macadamia oils to create a comprehensive lipid-dissolving system while adding vitamin E content for antioxidant protection during the cleansing process.

    Not yet assessed
  4. Vitamin E (Tocopheryl Acetate)

    Acts as both an antioxidant protector for the plant oils in the formula and a skin conditioner during cleansing. Prevents the corn, macadamia, and sunflower oils from oxidizing while delivering lipid-soluble antioxidant benefits to the skin during the massage step.

    Not yet assessed
Full ingredient list 13 ingredients ShowHide

Zea Mays (Corn) Oil, Isopropyl Myristate, Sorbeth-30 Tetraoleate, Ethylhexyl Palmitate, Caprylic/Capric Triglyceride, Diisostearyl Malate, Sorbitan Sesquioleate, Macadamia Ternifolia Seed Oil, Cyperus Esculentus Root Oil, Helianthus Annuus (Sunflower) Seed Oil, Purified Water, Tocopheryl Acetate, Fragrance

Safety & formulation facts

  • Pregnancy safe
  • Not fragrance free
  • Alcohol free
  • Not oil free
  • Silicone free
  • Paraben free
  • Sulfate free
  • Cruelty free
  • Vegan
  • Not fungal-acne safe
Pore-clogging (comedogenic) Isopropyl Myristate
Potential irritants FragranceIsopropyl Myristate
Common allergens Fragrance
Compatibility

Skin types & routine

Routine step cleanser
Time of day Night
Best season All year
Finish non-greasy

Layering

Use as the first step of a double-cleanse routine. Apply to dry skin, massage for 30-60 seconds to dissolve makeup and sunscreen, then emulsify with water and rinse. Follow immediately with a water-based cleanser to remove any residual oil and ensure pores are clean.

When to expect results

Immediate removal of makeup, sunscreen, and excess oil from the first use. Within 2-4 weeks of daily oil cleansing, many users notice reduced blackheads and clearer pores. The grits phenomenon — where oil cleansing dissolves sebaceous filaments into visible particles — may occur during the first few weeks.

Pairs well with gentle foam or gel cleanser (second cleanse)toner padstreatment serum

A routine built around it

Morning

  1. Water-based cleanser
  2. Toner
  3. Serum
  4. Moisturizer
  5. Sunscreen

Night

  1. THIS PRODUCT (first cleanse)
  2. Water-based cleanser (second cleanse)
  3. Toner
  4. Treatment serum
  5. Moisturizer
Guidance

How to use it, and who it's for

How to use

Pump 2-3 pumps onto dry hands. Apply to a dry face — water will prevent the oil from effectively dissolving makeup. Massage gently for 30-60 seconds, focusing on areas with heavy makeup, sunscreen, or visible blackheads. Add a small amount of lukewarm water and massage to emulsify — the oil will turn milky white. Rinse thoroughly with lukewarm water. Follow immediately with a water-based cleanser as the second step of your double-cleanse routine.

Is it worth the price?

At $19.50 for 200 ml (6.76 fl oz), this is one of the better values in K-beauty cleansing oils. With each cleanse using approximately 2-3 pumps, the bottle lasts 3-4 months of nightly use, putting the monthly cost at roughly $5-6. Comparable K-beauty cleansing oils from brands like Banila Co and Heimish run $18-24 for 180-200 ml, making Numbuzin's offering competitively priced. The minimalist formula means you're paying for effective cleansing ingredients rather than marketing-driven botanical extracts.

Who should buy it

Anyone who wears sunscreen or makeup daily and wants an efficient, affordable first-cleanse step. Ideal for people who dislike the heavy texture of traditional cleansing oils and want something that rinses clean quickly. K-beauty routine enthusiasts looking for a reliable double-cleanse oil.

Who should skip it

People with acne-prone skin sensitive to isopropyl myristate should avoid this formula. Those with fragrance sensitivities or very sensitive eye areas may find the scent and formulation irritating. Anyone seeking a fragrance-free cleansing oil has better options available.

Ready to try it?Numbuzin No. 1 Easy Peasy Cleansing Oil · $19.50 · 6.76 fl oz / 200 ml
Details

The product, in detail

Texture
Lightweight, fluid oil that's thinner than many cleansing oils. Spreads easily across the face with a comfortable slip. When water is added, it emulsifies into a milky solution that rinses clean without leaving an oily film.
Scent
Light fragrance — a mild, clean scent. Not overwhelming but noticeable during the cleansing massage.
Packaging
Pump bottle with 200 ml of product. The pump dispenses a controlled amount and is easy to use with one hand. The transparent bottle shows how much product remains.
How long it lasts
3-4 months with nightly use (2-3 pumps per cleanse)
Once opened
Use within 12 months · track your toss-by date →
Size
6.76 fl oz / 200 ml
Made in
South Korea
Launched
2021
Certifications
Cruelty-Free · Vegan

What the first two weeks feel like

Feels lightweight and fluid on the skin — not the thick, heavy oil some cleansing oils can be. The corn and macadamia oil blend creates a pleasant slip for facial massage. Makeup dissolves quickly — usually within 30 seconds of gentle massage. Emulsifies with water into a milky rinse that leaves skin feeling clean but not stripped.

The story behind it

Why it exists

Oil cleansing is the foundational first step of the Korean double-cleanse method, and Numbuzin designed this product to make that step as quick and effortless as possible. The 'Easy Peasy' name is a statement of intent — this is a no-fuss cleansing oil for people who want to dissolve their sunscreen and makeup in under a minute and move on to the rest of their routine.

About Numbuzin Established Brand (5–20 years)

Numbuzin was founded in 2019 by Korean beauty startup Benow and won the 2022 Olive Young Awards. The brand's numbered product system has gained a strong following in K-beauty markets globally, though its track record is still relatively short.

Brand founded 2019 · This product since 2021

Myth vs. reality

What people get wrong about it

MythOil cleansers will clog pores and cause breakouts in oily or acne-prone skin.

RealityThe 'like dissolves like' principle means oil cleansers can actually help dissolve the excess sebum and oxidized oils that contribute to clogged pores. However, this particular formula's isopropyl myristate — a known comedogenic ingredient — may indeed trigger breakouts in some acne-prone individuals. If you're breakout-prone, choose a cleansing oil without isopropyl myristate.

MythYou need to double cleanse even if you don't wear makeup.

RealityIf you wear sunscreen (and you should), oil cleansing is still valuable. Mineral and chemical sunscreens can leave residues that water-based cleansers alone may not fully remove. Even without sunscreen, oil cleansing helps dissolve accumulated sebum and environmental pollutants more effectively than water-based cleansing alone.

FAQ

Questions people ask

Does Numbuzin Easy Peasy Cleansing Oil remove waterproof makeup?

Yes, this cleansing oil effectively dissolves waterproof mascara, long-wear foundation, and SPF sunscreens. The corn, macadamia, and sunflower oil blend breaks down oil-soluble makeup and sunscreen bonds within 30-60 seconds of gentle massage. For very heavy or theatrical-level makeup, you may need an extra minute of massage.

Is this cleansing oil suitable for acne-prone skin?

Use with caution. While oil cleansing can help dissolve excess sebum, this formula contains isopropyl myristate, which is rated as comedogenic and may trigger breakouts in acne-prone individuals. It also contains fragrance. If you're acne-prone, consider a cleansing oil formulated without these ingredients.

How do you use a cleansing oil in a double cleanse routine?

Apply 2-3 pumps to dry hands and massage onto a dry face for 30-60 seconds, focusing on areas with makeup and sunscreen. Add a small amount of water to emulsify — the oil will turn milky. Rinse thoroughly with lukewarm water. Immediately follow with a water-based gel or foam cleanser as your second cleanse to ensure all residue is removed.

Will this cleansing oil help with blackheads?

Many users report visible 'grits' — tiny plugs of dissolved sebum and dead skin — during oil cleansing massage, particularly in the nose and chin area. Clinical data claims 94.39% removal of pore-clogging waste. Regular oil cleansing can help keep pores clearer over time, though individual results vary.

Does this cleansing oil sting the eyes?

Some users report eye irritation and stinging when this oil contacts the eyes during makeup removal. The fragrance and certain emulsifiers in the formula may contribute to this. If removing eye makeup, close your eyes firmly and massage gently around the eye area rather than directly on the eyelids. Rinse thoroughly if the product enters your eyes.

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

  • Dissolves waterproof makeup and sunscreen effortlessly
  • Lightweight oil texture doesn't feel heavy or sticky
  • Emulsifies cleanly and rinses off without residue
  • Removes blackheads and grits visibly during massage
  • Great value for 200 ml at under $20

Common complaints

  • Contains fragrance, which some users find unnecessary
  • Can cause eye irritation and stinging during use
  • Isopropyl myristate may trigger breakouts in acne-prone skin
  • Some users wish for a fragrance-free version
  • May not fully remove very heavy, theatrical-level makeup
Notable endorsementsOlive Young bestsellerClinically proven to remove 94.39% of pore-clogging waste
Related conditions BlackheadsLarge Pores
Related ingredients sunflower oilvitamin e
Next stepCheck it against what you already useClashes, spacing and the right order, with everything on your shelf.