COSRX The 6 Peptide Skin Booster Serum is a daily treatment designed to visibly smooth, firm, and refresh dull or tired-looking skin. A targeted six-peptide complex works alongside hydrators to support a healthy-looking barrier and a plumper appearance. The lightweight, fast-absorbing texture leaves no tackiness and fits easily into morning or evening routines. Wear it alone or cocktail it with hydrating essences and moisturisers for extra bounce.

Why It’s Different

• Six-peptide blend: Targets visible firmness, elasticity, and fine lines

• Feather-light texture: Absorbs quickly and layers under makeup without pilling

• Sensitive-skin considerate: Fragrance-free and designed to minimise irritation

• Routine-friendly: Plays well with niacinamide, hyaluronic acid, and most retinoids

How To Use

1. After cleansing and toner/essence, apply 1–2 pumps to face and neck.

2. Press until absorbed, then follow with moisturiser.

3. Use morning and night. Apply SPF in the day.

What’s Inside

• Size: 30 mL

• Texture: Lightweight, water-gel serum

• Key ingredients: Six-peptide complex, hyaluronic acid, panthenol, glycerin

  Replace with exact INCI if available (e.g., Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Acetyl Hexapeptide-8, Copper Tripeptide-1).

Ingredients

Water/Aqua, Glycerin, Hyaluronic Acid, Panthenol, Six-Peptide Complex, Allantoin, 1,2-Hexanediol, Carbomer, Arginine, Sodium PCA, Sodium Hyaluronate, and stabilisers/preservatives.
Refer to packaging for the most current full ingredient list.

Skin Types

All skin types, including sensitive and acne-prone.

Best For

• Early fine lines and loss of elasticity

• Dehydration and dullness

• Layering with hydrating routines for a bouncier look

FAQ

Can I use it with vitamin C or retinoids?
Yes. Apply after toner/essence and before moisturiser. If using strong actives, introduce gradually.

Is it sticky?
No. The texture is designed to absorb quickly with a soft, comfortable finish.

Fragrance-free?
Yes. There is no added fragrance.