Best Seller Set

Q: Is the COSRX Best Seller Set suitable for sensitive skin?
A: The set is hypoallergenic and dermatologist-tested, but those with sensitive skin should patch test first, particularly due to the AHA/BHA content in the toner.

Q: Can I use this set if I have dry skin?
A: Yes—the essence and lotion are hydrating enough for most skin types, though you may want to add a richer moisturizer on top if you run extra dry.

Q: Should I use the toner every day?
A: You can, but if you're new to AHA/BHA or have sensitive skin, start with every other day and build up as your skin adjusts.

Q: How long will the travel set last?
A: Each product is 20ml; with daily use, expect the set to last approximately 2-3 weeks depending on how much you dispense per application.

Q: What order should I apply the products in?
A: Use them in this order: cleanser, toner, essence, then lotion—this follows the thin-to-thick layering principle for best absorption.

Q: Can I use this set with other active ingredients like retinol or vitamin C?
A: Yes, but avoid layering the AHA/BHA toner directly with other strong actives; use them at different times of day or on alternating nights to prevent irritation.

Q: Who should avoid this set?
A: Those with known allergies to snail mucin or salicylates should skip this set, and anyone with very reactive skin should introduce products one at a time rather than all at once.

Dispense a small amount of Low pH Good Morning Cleanser onto wet hands and massage gently onto damp face for 60 seconds, avoiding the eye area. Rinse thoroughly with lukewarm water. Saturate a cotton pad with AHA/BHA Clarifying Treatment Toner and gently pat across the entire face. Allow the product to absorb completely before proceeding. Dispense an adequate amount of Advanced Snail 96 Mucin Power Essence onto clean hands. Spread evenly across the face and pat gently until fully absorbed. Apply Oil-Free Ultra-Moisturizing Lotion to face and neck as the final step. Massage gently until completely absorbed.

Low pH Good Morning Gel Cleanser: Water, Cocamidopropyl Betaine, Sodium Lauroyl Methyl Isethionate, Polysorbate 20, Styrax Japonicus Branch/Fruit/Leaf Extract, Butylene Glycol, Saccharomyces Ferment, Cryptomeria Japonica Leaf Extract, Nelumbo Nucifera Leaf Extract, Pinus Palustris Leaf Extract, Ulmus Davidiana Root Extract, Oenothera Biennis (Evening Primrose) Flower Extract, Pueraria Lobata Root Extract, Melaleuca Alternifolia (Tea Tree) Leaf Oil, Allantoin, Caprylyl Glycol, Ethylhexylglycerin, Betaine Salicylate, Citric Acid, Ethyl Hexanediol, 1,2-Hexanediol, Trisodium Ethylenediamine Disuccinate, Sodium Benzoate, Disodium EDTA

AHA/BHA Clarifying Treatment Toner: Water, Salix Alba (Willow) Bark Water, Pyrus Malus (Apple) Fruit Water, Butylene Glycol, 1,2-Hexanediol, Sodium Lactate, Glycolic Acid, Betaine Salicylate, Allantoin, Panthenol, Ethyl Hexanediol

Advanced Snail 96 Mucin Power Essence: Snail Secretion Filtrate, Betaine, Butylene Glycol, 1,2-Hexanediol, Sodium Hyaluronate, Panthenol, Arginine, Allantoin, Ethyl Hexanediol, Sodium Polyacrylate, Carbomer, Phenoxyethanol

Oil-Free Ultra-Moisturizing Lotion: Betula Platyphylla Japonica Juice, Butylene Glycol, Glycerin, Dimethicone, Betaine, Cetearyl Alcohol,1,2-Hexanediol, Cetearyl Olivate, Sorbitan Olivate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Sodium Lactate, Ethylhexylglycerin, Sodium Hyaluronate, Allantoin, Panthenol, Xanthan Gum, Ethyl Hexanediol, Citrus Medica Limonum (Lemon) Peel Oil, Melaleuca Alternifolia (Tea Tree) Leaf Oil