No. 1 Easy Peasy Cleansing Oil
K-Beauty Double-Cleanse Essential
Verified reviewer
Pros & cons.
- +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
- −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
The full review.
Double cleansing — using an oil-based cleanser followed by a water-based one — is the bedrock of Korean skincare. Most people skip this step to avoid spending five minutes with a thick, heavy oil that won’t emulsify and leaves a greasy film. Numbuzin designed the Easy Peasy Cleansing Oil to fix this; the name reflects its goal: make oil cleansing fast, clean, and effortless.
The formula is minimal with thirteen ingredients. This is spare for a cleansing oil, a category usually full of botanical extracts, emulsifiers, and various oils. Corn oil forms the base. This is an uncommon, smart choice. It is lighter than the olive, mineral, or camellia oils common in K-beauty, so the Easy Peasy Cleansing Oil has a fluid, almost water-like consistency when pumped. If you avoid oil cleansing because of the heavy, viscous feel of traditional cleansing oils, this product changes that.
Macadamia seed oil and sunflower seed oil complete the triple-oil base. Macadamia provides palmitoleic acid and a slip that makes massaging pleasant. Sunflower oil adds linoleic acid, which research shows supports barrier function instead of disrupting it. Together with the corn oil, these create a lipid-dissolving system that removes everything from waterproof mascara to zinc oxide sunscreen.
The emulsifying system — sorbeth-30 tetraoleate and sorbitan sesquioleate — ensures fast, clean rinsing. Add water to the oil and it turns almost immediately into a milky emulsion that washes away without the oily residue found in many cleansing oils. You do not need three rounds of water to feel clean. One rinse and it is gone.
Clinical testing claims the formula removes 94.39% of pore-clogging waste. While brand-sponsored studies require skepticism, the principle is sound: oil dissolves oil. Users consistently report visible grits — plugs of dissolved sebum and dead skin — during the massage, especially on the nose and chin. Regular oil cleansing helps control sebaceous filaments and reduces the appearance of blackheads over time.
The texture is distinctive. Most cleansing oils feel thick and heavy. 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. The corn oil base causes this; it has a naturally low viscosity compared to heavier plant oils.
There are two drawbacks. First: fragrance. The No. 1 line focuses on calming and soothing, so including fragrance is inconsistent. Multiple users note the scent, and some report eye irritation during makeup removal. A fragrance-free version would better suit the line’s sensitive-skin positioning.
Second: isopropyl myristate. This synthetic ester dissolves sebum and makeup effectively; it is a top solvent in cosmetic chemistry. However, it is rated as comedogenic, meaning it is more likely to clog pores in acne-prone individuals. This is a puzzling choice for a brand targeting trouble-prone skin with its No. 1 line. If your skin reacts to isopropyl myristate, choose a different cleansing oil.
For others, the Easy Peasy Cleansing Oil is an excellent, affordable first step for double-cleansing. At $19.50 for 200 ml, using 2-3 pumps per cleanse, the bottle lasts three to four months of nightly use. That is under $6 per month to remove makeup and sunscreen.
The product does not pretend to be a treatment or promise skin transformation, luxury, or innovation. It is a well-designed cleansing oil that works quickly and cleanly so the rest of your routine can work. Easy peasy indeed.
Ingredient analysis.
Full INCI list
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
Skin match.
The science.
The Science
Oil cleansing uses the chemistry principle 'like dissolves like' — lipophilic (oil-loving) substances dissolve other lipophilic substances. Makeup, sunscreen, and excess sebum are oil-based or oil-soluble. They dissolve better in oil than in the surfactant solutions used by traditional water-based cleansers.
Corn oil is the formula's primary ingredient and contains 55-60% linoleic acid in its fatty acid profile. Research in Pediatric Dermatology shows linoleic acid-rich oils disrupt the skin barrier less than oleic acid-dominant oils like olive oil. This makes corn oil a suitable base for a daily cleansing product for sensitive or acne-prone skin.
The emulsification system — sorbeth-30 tetraoleate and sorbitan sesquioleate — uses non-ionic surfactants. These reduce surface tension between oil and water to create a milky emulsion when water is added. These emulsifiers have an HLB (hydrophilic-lipophilic balance) value that ensures complete oil removal during rinsing, which prevents clogged pores from residual oil.
Isopropyl myristate is a highly effective solvent in cosmetic chemistry for dissolving sebaceous material. Research shows it has a high comedogenicity rating (4-5 on the 0-5 scale) in rabbit ear models, though human skin reactivity varies. Its inclusion boosts the cleansing power of the formula but creates a trade-off for clog-prone skin.
Dermatologist Perspective
Dermatologists support oil cleansing to remove oil-based impurities, especially sunscreen residues that water-based cleansers often leave behind. Board-certified dermatologists note the double-cleanse method — oil cleanser followed by a water-based cleanser — is one of the most thorough ways to clean skin. However, dermatologists caution that patients with active acne or a history of comedonal breakouts should avoid cleansing oils containing isopropyl myristate. For non-acne-prone patients, this formula's lightweight texture and effective emulsification work well as a daily cleansing step.
Where it fits in your routine.
Dispense 2-3 pumps onto dry hands. Apply to a dry face; water stops the oil from dissolving makeup. Massage for 30-60 seconds, targeting areas with heavy makeup, sunscreen, or visible blackheads. Add a little lukewarm water and massage to emulsify until the oil turns milky white. Rinse with lukewarm water. Follow immediately with a water-based cleanser for the second step of your double-cleanse routine.
At $19.50 for 200 ml (6.76 fl oz), this K-beauty cleansing oil offers good value. One nightly cleanse uses 2-3 pumps, so the bottle lasts 3-4 months. This makes the monthly cost roughly $5-6. Numbuzin's offering is competitively priced against Banila Co and Heimish cleansing oils, which cost $18-24 for 180-200 ml. The minimalist formula focuses on effective cleansing ingredients instead of marketing-driven botanical extracts.
Daily sunscreen or makeup users wanting an efficient, affordable first-cleanse step. Ideal for those who dislike the thick texture of traditional cleansing oils and want a quick, clean rinse. K-beauty routine enthusiasts seeking a reliable double-cleanse oil.
Avoid this formula if you have acne-prone skin sensitive to isopropyl myristate. The scent and formulation may irritate those with fragrance sensitivities or very sensitive eye areas. Better options exist for anyone seeking a fragrance-free cleansing oil.
Product details.
This lightweight, fluid oil is thinner than many cleansing oils. It spreads easily across the face with a comfortable slip. Adding water emulsifies it into a milky solution that rinses clean without an oily film.
Light fragrance — a mild, clean scent. Not overwhelming but noticeable during the cleansing massage.
200 ml pump bottle. The pump dispenses controlled amounts and works easily with one hand. The transparent bottle shows the remaining product.
The texture is lightweight and fluid, not thick or heavy like some cleansing oils. The corn and macadamia oil blend provides slip for facial massage. Makeup dissolves within 30 seconds of gentle massage. It emulsifies with water into a milky rinse that leaves skin clean but not stripped.
3-4 months with nightly use (2-3 pumps per cleanse)
12 months
All Year
The backstory.
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
Emerging Brand (2–5 years)Benow, a Korean beauty startup, founded Numbuzin in 2019. The brand won the 2022 Olive Young Awards. Numbuzin's numbered product system has a large global K-beauty following, despite its short track record.
Common myths.
Oil cleansers clog pores and cause breakouts in oily or acne-prone skin.
The 'like dissolves like' principle means oil cleansers dissolve excess sebum and oxidized oils that clog pores. However, the isopropyl myristate in this formula is a known comedogenic ingredient and may trigger breakouts in some acne-prone individuals. If you are breakout-prone, choose a cleansing oil without isopropyl myristate.
You need to double cleanse even if you don't wear makeup.
Oil cleansing is valuable even if you wear sunscreen. Mineral and chemical sunscreens leave residues that water-based cleansers may not fully remove. Without sunscreen, oil cleansing dissolves accumulated sebum and environmental pollutants more effectively than water-based cleansing alone.
FAQ.
Does Numbuzin Easy Peasy Cleansing Oil remove waterproof makeup?
Yes, this cleansing oil 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. Heavy or theatrical-level makeup requires an extra minute of massage.
Is this cleansing oil suitable for acne-prone skin?
Use with caution. Oil cleansing dissolves excess sebum, but this formula contains isopropyl myristate, which is comedogenic and triggers breakouts in acne-prone individuals. It also contains fragrance. Acne-prone users should choose a cleansing oil without these ingredients.
How do you use a cleansing oil in a double cleanse routine?
Massage 2-3 pumps onto a dry face for 30-60 seconds using dry hands, targeting makeup and sunscreen. Add a little water to emulsify until the oil turns milky. Rinse with lukewarm water. Follow immediately with a water-based gel or foam cleanser as your second cleanse to remove all residue.
Will this cleansing oil help with blackheads?
Many users see visible 'grits' — tiny plugs of dissolved sebum and dead skin — when massaging with oil cleansing, especially on the nose and chin. Clinical data shows 94.39% removal of pore-clogging waste. Regular oil cleansing helps 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 touches the eyes during makeup removal. The fragrance and certain emulsifiers in the formula cause this. When removing eye makeup, close your eyes firmly and massage gently around the eye area instead of directly on the eyelids. Rinse thoroughly if the product enters your eyes.
What the community says.
"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"
"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"
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