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COSRX

Advanced Snail 96 Mucin Power Essence

$25·100 ml·~$26/mo to use

Reviewed by SerumTruth Editorial · Updated July 2026

The essence that made snail mucin mainstream, and a genuinely pleasant hydrator for very little money. The evidence is limited and it is a comfort layer rather than a treatment, but on feel and value it is an easy yes.

SerumProof score66 / 100
  • Evidence14 / 30

    Strength of the research behind the key actives

    • Snail Mucin (Snail Secretion Filtrate): limited evidence
    • Score is the average of the key actives’ evidence grades.
  • Potency21 / 25

    Dosed at studied levels, not fairy-dusted

    • Snail Mucin (Snail Secretion Filtrate) (96%): dosed at a studied level
    • Potency tracks how strongly the actives are dosed, led by the strongest, not how many there are.
  • Delivery & stability14 / 20

    Delivery tech + packaging that protects fragile actives

    • Delivery: standard
    • Packaging: clear dropper
    • No fragile actives here, so packaging barely moves the score.
  • Formulation6 / 10

    Disclosure, active breadth, and ingredient generation

    • 1 of 1 actives disclose a concentration
    • 1 key active (breadth credit caps at 3)
    • No current-generation or synergy bonus
  • Value11 / 15

    What a month of use costs vs. the category

    • About $26 per month to use
    • $25 for 100 ml, used about twice a day (about 1.75 ml each time), so a bottle lasts about 1.0 months
    • Band: $6/month or less earns full marks, $60/month or more hits the floor.

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Where to buy at Ulta

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What’s inside

ActiveDisclosedDose
Snail Mucin (Snail Secretion Filtrate)96%Studied

A 96% snail secretion filtrate essence with supporting sodium hyaluronate, allantoin and a little panthenol, in a translucent pump bottle. It is a hydration and comfort layer aimed at the appearance of plumper, calmer-looking skin, not a tone or fine-line treatment. Snail mucin is a blend rather than a single dosed active, so there is nothing to disclose beyond the headline 96%. Nothing here is fragile.

How it’s delivered

DeliveryStandardPackagingClear dropper

Air- and light-sensitive actives (vitamin C, copper peptides) lose potency fast in the wrong packaging, so delivery and the bottle are scored, not just what’s on the label.

The actives, explained

Cosmetic information for general education, not medical advice. The SerumProof score reflects our reading of publicly available research and formulation disclosures. See how scoring works.