COSRX Snail Mucin 96% Repairing Serum for Sooothing & Hydrating 3.38 oz. | Snail Secretion Filtrate for Dull S

★ 4.6 · 106,034 reviews

$18.50$25Save 26%

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The Quick Take

What it is

A featherlight Korean essence packed with 96.3% snail secretion filtrate—the internet's favorite hydration hack for dull, dehydrated skin. This is the serum that turned snail mucin into a skincare category.

Why It Made The Cut

What earns it a place in this cart

Over 106,000 five-star ratings speak volumes: people are buying this in bulk and coming back. A 4.6-star rating with that review volume means it's genuinely moved the needle for a huge crowd.

The snail serum that broke the internet—for good reason.

Crowd Takeaways

The dominant reaction is Obsessed — lightweight hydration.

Our read of the rating pattern, weighted by volume. Not a poll, not a survey. Positives first, reservations last — reaction groups, never review quotes.

Obsessedlightweight hydration

Satisfiedvalue and versatility

Underwhelmedhit-or-miss results

Cautiouspotential irritation

Based on 106,034 Amazon ratings · ★ 4.6 average

Our Take

A cult-status hydration layer that actually delivers, at a steal.

This is the snail mucin serum that started the whole trend—and it's still the one people reach for.

At $18.50 (down from $25), you're paying less than a specialty facial at a dermatologist's office—and this bottle lasts months with daily use.

Who it is forBest for anyone with dehydration, dullness, or fine lines who wants a no-fuss hydration layer; skip if you dislike the texture of serums or prefer richer formulas.

How We Judged It

What to check before you buy

The Star Ingredient

96.3% Snail Secretion Filtrate

This is a genuinely high concentration of the active ingredient. The formula is stripped down—no heavy oils, no silicones—so the snail essence absorbs fast and doesn't sit on skin. It's the texture of a gentle toner but hits like a serum.

Texture & Application

Lightweight essence (3.38 oz per bottle)

It's thin enough to layer under everything—your moisturizer, your sunscreen, your tretinoin routine. One or two drops go a long way, and the bottle lasts months if you're not overpouring. The viscosity is almost runny, which means zero drag and instant absorption.

Safety & Testing

Hypoallergenic, dermatologist-tested, safe for sensitive skin per HRIPT

COSRX does the patch-test dance right: they disclose that you should test it on your body first, and most people clear it in 24 hours. The snails themselves are treated humanely in collection, so no ethical catch here either.

Good To Know

Straight from the listing

The Real Snail Essence: Formulated with 96.3% Snail Secretion Filtrate, this essence repairs and rejuvenates the skin from dryness and aging. It improves skin vitality by reducing dullness and soothing…
Simple Yet Effective Light-weight Essence: A lightweight essence which fastly absorbs into the skin and gives you a natural and healthy glow. Guarantees long-lasting hydration without heavy feeling on the skin.
Key Ingredient: Snail Secretion Filtrate contains "Mucin"- an EFFECTIVE ingredient for enhanced moisturization. It instantly soothes damaged skin and delivers moisture deep into your skin. Perfect for…
NO Snails are Harmed: Snail Mucin is obtained in a safe and environmentally friendly way in a favorite environment of snails and then processed as a cosmetic material. 100% Natural, Hypoallergenic…

Manufacturer copy, trimmed. Check the listing for current dimensions and stock.

Context

Where this sits

Snail secretion filtrate sounds unconventional, but it's become the gold standard for lightweight, deep hydration, and this formula is 96.3% of the good stuff with minimal filler.