COSRX Advanced Snail Mucin Gel Cleanser Review
BeautyBrief™
Brand
COSRX
Product
Advanced Snail Mucin Gel Cleanser
Claims check
If you want foaming cleansing with snail filtrate, COSRX includes a disclosed 10,000 ppm, but the rinse-off formula does not establish medical acne treatment.
Shopper fit
- Normal
- Combination
- Oily
- Sensitive
Formula flags
- Fragrance
Shopper preferences
- None Found
Key ingredients
| Disodium Laureth Sulfosuccinate | Provides a major part of the cleanser's foaming and oil-removal performance. |
|---|---|
| Sodium Cocoyl Isethionate | Adds effective cleansing and foam while helping round out the surfactant system. |
| Glycerin | Adds moisture support around the foaming cleanse. |
| Snail Secretion Filtrate | Present at 10,000 ppm (1%) for rinse-off conditioning support. |
| Lauryl Betaine | Adds further cleansing support within the multi-surfactant wash. |
Price tier
$ Budget
Value check
At the Budget tier, you get snail-filtrate foaming cleansing with a declared concentration, not fragrance-free skin treatment.
Where to buy
We may earn a commission through these links at no additional cost to you. This does not affect our BeautyBrief.
Bottom line
If you prefer cleansing with snail filtrate, COSRX combines foam surfactants and 10,000 ppm snail mucin. Its fragrance may not suit reactive skin, and the wash is not a leave-on snail essence or acne medicine. At the Budget tier, value lies in routine cleansing and texture.
If you want a foaming cleanser with more hydration support than a basic gel wash, COSRX Advanced Snail Mucin Gel Cleanser gives you a well-supported Budget option. You get multiple cleansing agents, glycerin, butylene glycol, and 10,000 ppm snail secretion filtrate, plus finished-product testing for pore cleansing, texture, hydration, sebum, blackheads, and whiteheads.
The main fit limitation is fragrance. COSRX positions the cleanser for sensitive skin, so if scented skincare already bothers you, a fragrance-free wash is the simpler choice.
What it claims
COSRX describes Advanced Snail Mucin Gel Cleanser as a hydrating gel cleanser for sensitive skin that deeply cleans pores, minimizes stimulation, and provides moisturizing care. The brand highlights 10,000 ppm snail mucus filtrate and says it helps protect your skin from stripping while impurities are removed.[1]
COSRX also reports that the finished cleanser is clinically proven to deeply cleanse pores, gently exfoliate, visibly refine skin texture, and improve blackhead and whitehead appearance.
Claims vs. formula
Disodium laureth sulfosuccinate, sodium cocoyl isethionate, coco-glucoside, lauryl betaine, and potassium cocoyl glycinate give you multiple cleansing pathways for surface oil, sweat, sunscreen residue, and daily buildup.
Glycerin and butylene glycol add moisture support around the cleansing system. Snail secretion filtrate is disclosed at 10,000 ppm, which gives the moisturizing and less-stripped positioning more substance than a trace-ingredient story.
The finished-product results give you stronger support for the pore, texture, hydration, and blackhead/whitehead story than ingredient presence alone. You should still think of this primarily as a cleanser with added hydration and texture support, not as a replacement for a dedicated leave-on treatment.
Fragrance appears in the verified ingredient list. If your skin is fragrance-reactive, that matters more than the brand’s sensitive-skin positioning.
Ingredients that matter
Disodium laureth sulfosuccinate, sodium cocoyl isethionate and lauryl betaine provide foaming cleansing. Glycerin and butylene glycol contribute hydration-focused support while snail secretion filtrate appears at a brand-disclosed 10,000 ppm (1%).
The COSRX product page describes moisturizing and deep pore cleansing, but these claims do not establish acne medication or the long-contact benefits of a snail-mucin essence. Fragrance is an explicit INCI ingredient and limits fit for shoppers avoiding added scent.
Sodium Cocoyl Isethionate
Sodium Cocoyl Isethionate is a well-established cleansing surfactant often used in syndet bars and gentle washes. Comparative testing supports a relatively mild profile, but the complete surfactant system determines real-world…
Read the IngredientBrief
Glycerin
If your skin feels dry or tight, glycerin helps your skin hold moisture. You don't need a high percentage or a separate serum when your moisturizer already works well.
Read the IngredientBrief
Snail Mucin
Snail mucin is an animal-derived skin-conditioning ingredient with some human support for hydration and smoother-feeling skin. Species, processing, percentage, and the complete formula matter more than the snail claim alone.
Read the IngredientBrief
Fragrance
Fragrance is a scent blend added mainly for sensory appeal. Many shoppers tolerate it well, while specific fragrance materials can trigger irritation or allergic contact dermatitis in susceptible people.
Read the IngredientBriefSafety and regulatory context
COSRX documents 10,000 ppm snail secretion filtrate and a separate fragrance ingredient in this exact cleanser.[1] The finished-product skin-testing language does not guarantee that fragrance-reactive users will tolerate it.
Snail filtrate is animal-derived, so the product does not meet vegan preferences. Rinse away the foam thoroughly, and do not use the pore language as proof of a dosed acne treatment.
What to expect in the short term
You get a gel that builds into noticeable foam and cleans more thoroughly than a non-foaming cream wash. The humectants and snail filtrate support a softer after-feel while the surfactant blend handles everyday oil and buildup.
COSRX directs you to lather a pea-size amount, massage the foam from your forehead to your jaw, and rinse thoroughly with warm water.[1]
What to expect over time
COSRX reports 96% sebum and impurity removal, 92% improvement in skin texture and hydration, and a 54% reduction in blackheads and whiteheads for the finished cleanser. Those results give you useful product-specific support, but the cleanser still belongs in the cleansing step rather than replacing leave-on care.
At the Budget tier, you are paying for a capable foaming system, meaningful moisture support, a disclosed amount of snail filtrate, and finished-product testing without moving into a higher price tier.
Who it fits
This makes the most sense if your skin is normal, combination, oily, or sensitive, you want noticeable foam, and added hydration support appeals to you.
If your skin is very dry, a creamier cleanser may feel better. If fragrance bothers your skin, choose a fragrance-free option even though COSRX positions this formula for sensitive skin.
Compare before you buy
Choose Advanced Snail Mucin Gel Cleanser when you want foaming cleansing plus snail-mucin hydration and finished-product pore and texture testing.
Choose a simpler fragrance-free cleanser when avoiding scent matters more to you than the snail-mucin and clinical-results story.
Final Assessment
If your skin likes a foaming face wash with snail filtrate, COSRX Advanced Snail Mucin offers surfactants with a disclosed 1% snail ingredient. Added fragrance is a consideration for sensitive routines, and the short rinse-off contact does not prove treatment of dark spots or acne. At the Budget tier, its value is routine cleansing and preferred formula texture.
Where to buy
Choose a retailer to view current pricing and availability.
We may earn a commission through these links at no additional cost to you.
Last reviewed: October 2026
Sources
COSRX Advanced Snail Mucin Gel Cleanser. Official current product facts, formula and directions; accessed October 14, 2026.
