Nature Republic Snail Solution Skin Booster vs COSRX AC Collection Calming Liquid Mild

Nature Republic

COSRX

A toner built around Niacinamide and Panthenol, for hydration and barrier repair.

A toner built around PHA and Panthenol, for hydration and barrier repair.

Toner

43 ingredients

18 ingredients

Brand price

Not recorded · brand's site

Brand price

USD 26.00 · checked 25 Sept 2026 · brand's site

Buy at

No retailer listed yet

Brand country not recorded

Brand from South Korea

Retailer links are affiliate links. Buying through one may earn us a commission at no cost to you.

At a Glance

They come out differently on EU-allergen-free, Alcohol-free, Silicone-free and Pore-clogger-free; those rows are shaded. Tap any answer to see why.

Ceramide1
Skin-identical lipids that hold the barrier together.
Ceramide NP
Vitamin E1
Tocopherols — fat-soluble antioxidants.
Tocopherol
Panthenol (provitamin B5)1
Provitamin B5 — a humectant and soother.
Panthenol
Centella asiatica (Cica)3
Centella asiatica (cica), used to calm irritation.
Centella Asiatica Extract, Centella Asiatica Leaf Extract, Madecassoside

PHA1
Polyhydroxy acids — larger and milder than AHAs.
Gluconolactone
Panthenol (provitamin B5)1
Provitamin B5 — a humectant and soother.
Panthenol
Centella asiatica (Cica)3
Centella asiatica (cica), used to calm irritation.
Asiatic Acid, Asiaticoside, Madecassic Acid
Hyaluronic acid1
Hyaluronic acid and its salts; a humectant that binds water to the skin.
Sodium Hyaluronate

Hydrating6
Boosts hydration and relieves dry, tight skin.
Betaine, Butylene Glycol, Gluconolactone, Glycerin, Panthenol, Sodium Hyaluronate
Barrier Repair5
Strengthens and restores the skin's natural barrier.
Allantoin, Betaine, Glycerin, Melaleuca Alternifolia Leaf Oil, Panthenol
Reduces Irritation5
Eases discomfort and supports skin resilience.
Allantoin, Asiatic Acid, Asiaticoside, Madecassic Acid, Panthenol
Redness Reducing4
Soothes visible redness and calms irritation.
Allantoin, Asiatic Acid, Asiaticoside, Madecassic Acid

May Trigger Acne1
Can clog pores or trigger breakouts.
Tocopherol
May Worsen Seborrheic Dermatitis8
May feed the yeast involved in seborrheic dermatitis.
Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Ceramide NP, Hydrogenated Lecithin, Lecithin, Octyldodeceth-16, PEG-60 Hydrogenated Castor Oil, Polyglyceryl-10 Isostearate, Polyglyceryl-10 Oleate
May Worsen Keratosis Pilaris1
May clog follicles or strip skin prone to keratosis pilaris.
Tocopherol
May Worsen Irritation4
May cause stinging, redness or sensitivity.
Alcohol Denat., Fragrance, Linalool, Tocopherol

May Worsen Seborrheic Dermatitis2
May feed the yeast involved in seborrheic dermatitis.
Polyglyceryl-10 Laurate, Polyglyceryl-10 Myristate
May Worsen Irritation1
May cause stinging, redness or sensitivity.
Melaleuca Alternifolia Leaf Oil
May Worsen Eczema1
May worsen itching or irritation for eczema-prone skin.
Melaleuca Alternifolia Leaf Oil
May Worsen Rosacea1
Can trigger flare-ups in rosacea-prone skin.
Melaleuca Alternifolia Leaf Oil

Show highlights for:

Snail Secretion Filtrate
Skin Conditioning
- Animal-derived
Glycerin (in both products)
Humectant
0 / 0
- Possibly animal-derived
- Hydrating
Alcohol Denat.
Fragrance
0 / —
- Denatured alcohol
- May Worsen Dryness
- May Worsen Eczema
- May Worsen Irritation
- May Worsen Rosacea
1,2-Hexanediol (in both products)
Skin Conditioning
Niacinamide
Smoothing
0 / —
- Niacinamide
- Acne Fighting
- Barrier Repair
- Brightening
- Dark Spots
- Even Tone
- Oil Control
- Pore Refining
- Redness Reducing
Pentylene Glycol
Skin Conditioning
0-1 / —
Methyl Gluceth-20
Humectant
Water
Skin Conditioning
PEG-60 Hydrogenated Castor Oil
Cleansing
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
PEG-32
Humectant

Camellia Sinensis Leaf Water
Perfuming
Butylene Glycol (in both products)
Humectant
1 / 0
- Hydrating
Dimethyl Sulfone
Viscosity Controlling
0-1 / —
Betaine
Humectant
0 / —
- Hydrating
1,2-Hexanediol (in both products)
Skin Conditioning
Betaine Salicylate
Antimicrobial
Gluconolactone
Skin Conditioning
- PHA
- Exfoliating
- Hydrating
Polyglyceryl-10 Laurate
Emulsifying
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
Polyglyceryl-10 Myristate
Skin Conditioning
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
Glycerin (in both products)
Humectant
0 / 0
- Possibly animal-derived
- Hydrating

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Glycerin
Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care, Perfuming, Humectant, Skin Protecting, Solvent, Viscosity Controlling
Glycerin may be plant, synthetic or animal depending on the supplier.
Learn more about Glycerin →
1,2-Hexanediol
Skin Conditioning, Solvent
We don't have a description for 1,2-Hexanediol yet.
Learn more about 1,2-Hexanediol →
Butylene Glycol
Fragrance, Humectant, Skin Conditioning, Solvent, Viscosity Controlling
Butane-1,3-diol (CAS No. 107-88-0/ EC No. 203-529-7) (R)-(-)-butane-1,3-diol” (CAS No. 6290-03-5/ EC No. 228-532-0)
Learn more about Butylene Glycol →
Panthenol
Antistatic, Hair Conditioning, Skin Conditioning
Panthenol is panthenol (provitamin B5).
Learn more about Panthenol →
Sodium Hyaluronate
Humectant, Skin Conditioning
Sodium Hyaluronate is a hyaluronic acid.
Learn more about Sodium Hyaluronate →