
COSRX
Advanced Snail 96 Mucin Power Essence
The cult repair essence — 96% snail mucin, zero fuss.

The prestige K-beauty serum — a first step that makes every next step work harder.
Rated 4.8 out of 54.8 · 283 reviewsRating aggregated from YesStyle beauty community — Verified buyer reviews · yesstyle.com
Korea's most famous luxury skincare product: a hanbang herbal 'booster' serum applied before everything else. Twenty-five years and six generations of formula refinement are in the bottle.
Amazon
$89 · Price last checked July 10, 2026
Sulwhasoo US
$89 · Price last checked July 10, 2026
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We came to argue with the price and left renewing the bottle. Used before a basic routine, it visibly improved how everything layered after it — the rare 'booster' claim that survived our testing.
A fermented blend of ginseng, peony, and licorice conditions freshly cleansed skin — softening the surface so the watery layers that follow spread and absorb more evenly.
Best for dry, dull, or tired-looking skin, and for anyone whose expensive products seem to 'sit on top.' Not so good for strict fragrance-free routines.
If $89 is the whole budget, spend it on sunscreen and a good toner first — this is an upgrade, not a foundation.
Press two pumps into skin immediately after cleansing, before toner. Morning and night.
Reviewers describe skin as 'rested-looking' by week three; the effect reads strongest in dry-skin reviews.
See more women's skincare for dry skin · See other products from Sulwhasoo
Tested against the same criteria, loved for different reasons.

COSRX
The cult repair essence — 96% snail mucin, zero fuss.

Beauty of Joseon
The viral brightening serum that earns the algorithm's hype.
| Compare | SulwhasooFirst Care Activating Serum | COSRXAdvanced Snail 96 Mucin Power Essence | Beauty of JoseonGlow Deep Serum (Rice + Alpha-Arbutin) |
|---|---|---|---|
| Price | from $89 | from $17 | from $14 |
| Key ingredient | ginseng | snail mucin | rice bran water |
| Best for | dry, combination, sensitive | dry, sensitive, combination | combination, oily, dry |
| Texture | Silky fluid, herbal scent | Clear, stretchy essence | Lightweight milky serum |
| Rating | Rated 4.8 out of 54.8 · 283 reviews | Rated 4.8 out of 54.8 · 30,148 reviews | Rated 4.9 out of 54.9 · 4,809 reviews |
As a first luxury buy, yes — it changes how a whole routine feels. As a first skincare buy, no; foundations first.
How we testReally. 'First Care' is the category Sulwhasoo invented: it primes, everything else follows.
Twice daily, about three months for the 90ml.
First Care Activating Serum
from $89