COSRX The 6 Peptide Skin Booster Serum 150ml

If you want to add peptides to your routine but do not want another heavy layer, a light, toner-like booster is an easy way to do it. The COSRX peptide serum is a watery, fast-absorbing serum that helps firm the look of skin and refine texture while prepping your skin for the steps that follow. It sinks in instantly and leaves skin feeling smooth and hydrated.

What makes this skin booster so easy to use is its six-peptide complex and lightweight feel. It combines six peptides, including copper tripeptide-1 and acetyl hexapeptide-8, with niacinamide, hyaluronic acid, and a generous mix of skin-loving amino acids to support firmness, hydration, and a smoother-looking texture. The toner-like consistency absorbs in seconds with no stickiness, and it is fragrance-free with a low-irritation formula that layers well with almost anything, including vitamin C, retinol, and exfoliating acids.

This serum suits all skin types and is a nice fit for anyone wanting a gentle, everyday peptide step, including sensitive and acne-prone skin. It works beautifully as a first-step prep serum to boost the products that follow. If you are after a rich, single-active treatment serum, this light multi-peptide booster is meant to complement your routine rather than replace a targeted one.

Features:

• Lightweight, toner-like texture that absorbs instantly

• Six-peptide complex to support firmness and smoother-looking texture

• Niacinamide, hyaluronic acid, and amino acids for a hydrated feel

• Layers well with vitamin C, retinol, and other actives

• Non-sticky finish that preps skin for the next steps

• Fragrance-free, low-irritation formula

Concerns:

• Loss of firmness and the look of fine lines

• Uneven, rough-looking texture

• Dull, dehydrated-looking skin

• The look of enlarged pores

Suitable For:

• All skin types, including sensitive and acne-prone

• Anyone wanting a gentle daily peptide step

• Skin focused on firmness, texture, and hydration

• As a first-step prep serum before other treatments

Made In:

• South Korea

• The six-peptide complex helps support the look of firmness and elasticity over time

• Niacinamide helps support a brighter, more even-looking complexion

• Hyaluronic acid and amino acids hydrate so skin feels plump and comfortable

• The watery texture preps skin so the products you layer after absorb better

• A non-sticky finish means it sits well under serums, creams, and makeup

• The fragrance-free, low-irritation formula is a thoughtful choice for sensitive skin

1. Cleanse your face as the first step of your routine.

2. Dispense two to three pumps of the serum into your hands.

3. Pat it gently over your face until it absorbs.

4. Let it sink in for a moment as a prep layer.

5. Follow with your other serums, ampoules, and moisturizer.

6. Use it morning and night, and apply sunscreen in the daytime.

Key Ingredients:

• Six-Peptide Complex (Copper Tripeptide-1, Acetyl Hexapeptide-8, and more): Peptides that help support the look of firmness and smoother texture.

• Niacinamide: A well-studied ingredient that supports a brighter, more even-looking complexion.

• Sodium Hyaluronate: A well-loved hydrator that helps skin hold on to moisture.

• Amino Acid Complex (Serine, Glycine, Arginine, and more): Skin-loving amino acids that help keep skin hydrated and comfortable.

• Allantoin: A gentle ingredient that helps skin feel calm and smooth.

Ingredient Claims:

• Fragrance-Free

• Essential Oil-Free

• Silicone-Free

• Sulfate-Free

• Paraben-Free

• PEG-Free

• Alcohol-Free (no drying alcohols)

Full Ingredients List:

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, 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

COSRX is a South Korean skincare brand known for simple, effective formulas that focus on a few well-chosen ingredients rather than long, complicated lists. Its name comes from "cosmetics" and "RX," reflecting its focus on effective, skin-friendly products, and it is especially loved for its snail mucin range and barrier-friendly staples that have become K-beauty favourites worldwide. Shoppers tend to reach for COSRX when they want straightforward, no-fuss skincare that gets the job done. At C&C Canada, you can shop authentic COSRX with no surprise customs charges and reliable delivery across Canada.

• COSRX The 6 Peptide Skin Booster Serum

• 150 ml

• 1 pump bottle