COSRX The 6 Peptide Skin Booster Serum (150 mL)

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$25.99

A lightweight multi-peptide booster serum with niacinamide and hyaluronic acid that helps hydrate, smooth, brighten, firm, and refine the appearance of pores and uneven texture.

Benefits
• Helps improve the appearance of uneven skin texture
• Supports firmer, smoother and plumper-looking skin
• Helps refine the look of pores and excess oil
• Supports brighter, more even-looking tone
• Provides lightweight hydration
• Helps soothe and condition the skin
• Prepares skin for following serums and treatments

Description

A lightweight, toner-like peptide booster designed to be the first treatment step after cleansing. Formulated with six multi-functional peptides, niacinamide, hyaluronic acid, amino acids, and skin-conditioning ingredients, it helps support smoother texture, hydration, firmness, radiance, and a more refined-looking complexion.

The fast-absorbing formula layers easily under serums, ampoules, and moisturizers without feeling heavy or sticky. 

Skin Type
What It’s For 
How to Use 
  • Suitable for all skin types, especially dehydrated, dull, uneven-textured, or pore-concerned skin seeking lightweight hydration and smoothing care.

A lightweight peptide booster designed to support smoother texture, hydration, firmness, brightness, and the appearance of refined pores. It works well as a first treatment step after cleansing to prep the skin for the rest of your routine.

After cleansing, apply 2–3 pumps as the first skincare step and gently pat into the face until absorbed. Follow with essence, ampoule, serum, and moisturizer. Can be used morning and evening. 

  • Acetyl Hexapeptide-8: Helps support smoother-looking skin and the appearance of firmness.
  • Copper Tripeptide-1: Helps condition the skin and support a smoother, more resilient-looking complexion.
  • sh-Polypeptide-121: Peptide ingredient used to support a plumper, firmer-looking appearance.
  • Dipeptide Diaminobutyroyl Benzylamide Diacetate: Helps support smoother-looking skin and pore/sebum care.
  • Oligopeptide-68: Helps support a brighter, more even-looking complexion.
  • Palmitoyl Tripeptide-8: Helps soothe and support skin comfort.
  • Niacinamide: Helps support brighter, more even-looking skin while improving the appearance of texture.
  • Sodium Hyaluronate: Helps attract and retain moisture for hydrated, plumper-looking skin.
  • N-Acetyl Glucosamine: Helps support hydration and a smoother, more even-looking complexion.
  • Allantoin: Helps soothe and comfort the skin.
  • Amino Acid + NMF Complex: Helps maintain hydration and support the skin’s moisture balance. 

Full Ingredients 

Water (Aqua), Dipropylene Glycol, Glycerin, Pentylene Glycol, 1,2Hexanediol, 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, Threonine, Arginine, Proline, Betaine, Sodium PCA, Sodium Lactate, PCA, Glutamic Acid, Lysine HCl, Tocopherol, Dextran, Glycine Soja (Soybean) Oil, Hydrogenated Lecithin, Ammonium Acryloyldimethyltaurate/VP Copolymer, Polyacrylate Crosspolymer-6, Butylene Glycol, Xanthan Gum, Ethylhexylglycerin, Adenosine, Polyquaternium-51, Disodium EDTA, Citric Acid, Caprylyl Glycol, t-Butyl Alcohol, Potassium Sorbate, Sodium Oleate.

Lightweight, toner-like booster serum formulated around six complementary peptides, niacinamide, hyaluronic acid, amino acids, and moisturizing factors. Designed to absorb quickly and prep the skin for subsequent skincare without a heavy or sticky finish.

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$25.99

Texture / Finish

  • Lightweight
  • Watery Serum
  • Fast Absorbing
  • Hydrating
  • Smooth
  • Non-Sticky
  • Layering Friendly

Pairs Well With

  • Hydrating toners
  • Soothing essences
  • Hyaluronic acid serums
  • Barrier-supporting moisturizers
  • Ceramide creams
  • Daily sunscreen

Skin Concern

  • Dehydration
  • Dullness
  • Uneven texture
  • Visible pores
  • Fine lines
  • Loss of firmness
  • Uneven skin tone