COSRX
The 6 Peptide Skin Booster
A medium serum & treatment for aging and texture, built around Niacinamide, with reviewed formula data, and low obvious irritation flags.
Routine step
Serums & Treatments
Category
Serum & Treatment
When to use
Morning or night
Skin fit
Aging
10/10
Texture
10/10
Dullness
8/10
Pores
8/10
Best for
Ingredient highlights
Niacinamide
Supports barrier function, oil balance, and more even tone
Cautions
No major red flags in Koracle's current read. Still patch-test first.
Full ingredients
Formula source and INCI list
Koracle has a reviewed formula record for this product.
Koracle has a reviewed ingredient source for this product.
Water, Dipropylene Glycol, Glycerin, Pentylene Glycol, 1,2-Hexanediol, Niacinamide, Acetyl Hexapeptide-8, Copper Tripeptide-1, sh-Polypeptide-121, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Oligopeptide-68, Palmitoyl Tripeptide-8, Allantoin, Sodium Hyaluronate, Acetyl Glucosamine, Serine, Alanine, Glycine
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Availability not recently checked at YesStyle
Last checked Aug 1, 2026. Stock can change.
Koracle is skincare education, not medical or dermatology advice. Patch-test new products. Ask a licensed dermatologist about acne, rosacea, eczema, allergic reactions, pregnancy concerns, or symptoms that persist.