In 1738, in Paris, Nicolas Lemery's Universal Pharmacopoeia gave a recipe for snail water. You crushed the snails, soaked them in donkey milk and distilled the lot. The result was described as a hydrator, useful for skin redness and fine for cleaning up one's face. A historical review of the subject traces snails back further still, to Hippocrates and Pliny. People have been putting snails on their faces for a very long time, and nobody has ever needed to be embarrassed about it.

COSRX is the brand that made the idea ordinary. It was founded in 2013, and Amorepacific bought a stake in 2021, then announced in 2023 that it would take the rest and make COSRX a subsidiary. What I find interesting is how narrow the focus stayed: a hero line called Advanced Snail, and a second one called The RX line, with The Vitamin C 23 Serum and The Retinol 0.1 Cream. The COSRX Advanced Snail 92 All in One Cream is the centre of the first. The brand says it holds 92% snail secretion filtrate and 1,000 ppm hyaluronic acid, and it is fragrance-free, which I suspect is a big part of why people keep buying it.

The trick is to treat the first grid as a routine, because COSRX suggests one itself: the Gel Cleanser, then the 96 Mucin Power Essence, then the cream. The Advanced Snail Mucin Power Gel Cleanser is where it starts. The Advanced Snail 96 Mucin Power Essence is the watery step. The Advanced Snail Peptide Eye Cream is for the area the cream can also reach, and it comes in a pump bottle.

The Hydrogel Eye Patch, the Glass Glow Hydrogel Mask and the Power Sheet Mask are the treats for a Sunday, and the Ceramide Skin Barrier Moisturizer is the non-snail option for anyone who would rather skip the mucin.

Introduce one active at a time, and leave a full week between new ones. If your skin reacts, you will know exactly which bottle did it.

The COSRX actives live on the same shelf as the snail line, and they are refreshingly literal. BHA Blackhead Power Liquid is the one aimed at blackheads. The AHA 2 BHA 2 Blemish Treatment Serum is the gentler, combined version, and The AHA BHA PHA LHA 35 Peel with Vitamins B5 & B12 is the strong one, which I would keep for occasional evenings and not for every night.

The Niacinamide 15 Serum is the one for oil and uneven tone. The Advanced The Vitamin C 23 Serum with Super Vitamin E & Hyaluronic Acid and The Vitamin C 13 Serum are the brightening pair, the 13 being the mellower one if your skin runs sensitive. The Retinol 0.1 Cream with Super Vitamin E & Panthenol is the night step, and it comes as a cream, which suits anyone wary of retinol. The Acne Pimple Master Patch is for the one spot you cannot leave alone.

A pairing I like: an active at night, and the Snail 92 cream on top, which the brand describes as soothing for irritated, sensitised skin after breakouts. The cream is the cushion for the acid.

What I would skip: the acid peel and the retinol in the same week. They are good partners only when you give them separate nights.

Test a new cream by putting it on only one half of your face for three mornings, and keep the other half on your usual one. It is a slightly silly exercise that gives a far better answer than a review does.

Other brands have copied the snail idea, and others have moved on to barrier care, which is the direction the whole category has gone. Seoul Ceuticals' Snail Repair Cream and YEOUTH's Snail Mucin and Copper Peptide Day and Night Moisturizer are the closest neighbours to the jar you are comparing. Baebody's Collagen, Retinol and Snail Mucin Face Moisturizer puts three trending ingredients into one, and I would keep that for evenings.

On the barrier side, AESTURA's ATOBARRIER365 Cream Moisturizer is the ceramide classic, Torriden's DIVE IN 5D Hyaluronic Acid Intensive Cream is the richer one for dry skin, and innisfree's Green Tea Ceramide Cream is the one made for redness. Hanyul's Korean Artemisia Soothing Gel Cream is a lighter gel choice and Yepoda's The Make My Day Cream rounds out the row.

For skin that feels stung by everything, I would start with the AESTURA ceramide cream. I would hand the Snail 92 cream to anyone who likes a bouncy gel texture instead.

What I would skip: swapping creams every week. Skin barriers like boredom.

Damp skin takes a cream better than dry skin does, so put the toner on within a minute of washing and press the cream in while everything still feels cool and wet.

Korean toners are not the sharp, stinging kind. Haruharu Wonder's Black Rice Hyaluronic Toner and I'M FROM's Rice Toner are the two I would put first. MISSHA's Time Revolution The First Essence Enriched and BENTON's Fermentation Essence sit in the essence category, the watery middle step between toner and cream.

KLAIRS' Supple Preparation Unscented Facial Toner is the plain, fragrance-free pick for sensitive skin. Beauty of Joseon's Glow Replenishing Rice Milk Toner and TIRTIR's Milk Skin Toner round out the row. IOPE's XMD Stem III Clinical Recovery Essence Toner is the recovery-minded one, for the nights you want a calmer routine.

A cream like this one then works as the seal. The brand's 230% hydration claim comes from a study of only 20 adults, so I treat it as a nice signal and not a promise.

What I would skip: five layers of watery products on a humid morning. Two is plenty, and the cream goes last.

Honestly, the one to try first is the cream, used as the last step of a simple night routine, after the gentle cleanser and a toner. It is fragrance-free, and it makes the most sense after breakouts or over-exfoliating, when skin wants comfort.

I would keep expectations modest. The brand's own evidence is a small study, and dermatology writers note that research on snail products is still limited. So the cream is a soothing step, not a miracle, and sunscreen still goes on top in the morning. Lemery's snail water was useful for a flushed face in 1738. The jar has better packaging. If you want to keep browsing, I also put together BYOMA Moisturizing Gel Cream and SkinMedica TNS Advanced+ Serum and the Growth Factor Story.