Cosrx The 6 Peptide Skin Booster Serum 150ml

Steps

1. After cleansing, apply COSRX The 6 Peptide Skin Booster Serum to clean skin as your first hydrating step, before other serums or moisturiser.
2. Dispense a few drops into your palms or directly onto your face.
3. Gently spread across the face and pat until absorbed. Avoid direct contact with the eyes.
4. Follow with your preferred ampoule or treatment serum, then moisturiser to help seal in hydration.
5. Use morning and evening as part of your regular skincare routine. Finish with sunscreen during the day.

Professional tip

Treat this lightweight booster as a preparation step rather than a replacement for moisturiser. Apply it before thicker serums to layer hydration without a heavy finish. If using several active treatments, introduce them gradually and adjust your routine to your skin's tolerance.

Main ingredients

Water, Dipropylene Glycol, Pentylene Glycol, 1,2-Hexanediol, Dextran, Hydrogenated Lecithin, Ammonium Acryloyldimethyltaurate/VP Copolymer, Polyacrylate Crosspolymer-6, Butylene Glycol, Xanthan Gum, Ethylhexylglycerin, Polyquaternium-51, Disodium EDTA, Citric Acid, Caprylyl Glycol, t-Butyl Alcohol, Potassium Sorbate, Sodium Oleate

Key ingredients

Acetyl Hexapeptide-8, Copper Tripeptide-1, sh-Polypeptide-121, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Oligopeptide-68, Palmitoyl Tripeptide-8, Niacinamide, Acetyl Glucosamine, Adenosine, Sodium Hyaluronate, Glycerin, Serine, Alanine, Glycine, Threonine, Arginine, Proline, Betaine, Sodium PCA, Sodium Lactate, PCA, Glutamic Acid, Lysine HCl, Allantoin, Tocopherol, Glycine Soja (Soybean) Oil

How do the key ingredients function in COSRX The 6 Peptide Skin Booster Serum 150ml?

• Acetyl Hexapeptide-8: Helps soften the appearance of expression lines, supporting a smoother looking complexion. It does not work like an injectable wrinkle treatment.
• Copper Tripeptide-1: A skin conditioning peptide studied for its role in skin repair processes. It supports the formula's focus on resilience and visible firmness.
• sh-Polypeptide-121: A peptide included for skin conditioning and a smoother, more supple appearance. Its individual clinical effect in this finished serum has not been established.
• Dipeptide Diaminobutyroyl Benzylamide Diacetate: Helps target the appearance of expression related lines, complementing the other smoothing peptides.
• Oligopeptide-68: A peptide associated with skin tone care, helping support a more even looking complexion over time.
• Palmitoyl Tripeptide-8: A soothing peptide that helps support skin comfort and reduce the appearance of stress related redness.
• Niacinamide and Acetyl Glucosamine: Work together to support a brighter, more even looking skin tone. Niacinamide also helps with the appearance of excess oil and pores.
• Adenosine: A skin conditioning ingredient used to improve the appearance of fine lines and promote smoother looking skin.
• Sodium Hyaluronate, Glycerin and Natural Moisturising Factors: Attract and retain water for plumper, softer skin. The amino acids, betaine, PCA and sodium lactate help replenish the skin's natural moisture balance.
• Allantoin: Helps soothe dryness related discomfort, making the booster comfortable to layer with other skincare.
• Tocopherol and Soybean Oil: Provide antioxidant and conditioning support, helping keep skin soft without relying on a heavy cream texture.

Why are customers choosing COSRX The 6 Peptide Skin Booster Serum 150ml over other peptide serums?

COSRX The 6 Peptide Skin Booster Serum stands out by bringing six complementary peptides into a light, toner-like first step rather than a thick, single-purpose treatment. Its formula combines peptide care for the appearance of fine lines, firmness and texture with niacinamide for tone, N-acetyl glucosamine for refinement and sodium hyaluronate for hydration. This makes it especially appealing to customers who want a more complete skincare routine without adding a heavy or sticky layer. It fits neatly between cleansing and targeted serums, so it can complement an existing routine rather than replace favourite treatments.

Customers praise its quick absorption, fresh feel and easy layering beneath moisturiser or makeup. Users notice improved softness, smoother texture and a more hydrated appearance, while results for firmness and pigmentation are gradual and vary between individuals. Its real advantage is versatility: a peptide-rich Korean skincare booster that works as an everyday foundation for multiple skin concerns, with a light finish suitable for both morning and evening use - Everything Keratin

Product name:
COSRX The 6 Peptide Skin Booster Serum

Brand:
COSRX

Product type:
Multi-peptide facial booster serum

Size:
150ml / 5.07 fl. oz.

Country of origin:
South Korea

Texture:
Lightweight, watery, toner-like serum with a non-sticky finish

Treatment focus:
Hydration, fine lines, skin texture, uneven tone, visible pores and loss of firmness

Key ingredients:
Acetyl Hexapeptide-8, Copper Tripeptide-1, sh-Polypeptide-121, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Oligopeptide-68, Palmitoyl Tripeptide-8, Niacinamide, N-Acetyl Glucosamine, Sodium Hyaluronate, Allantoin and Adenosine

Skin types:
Suitable for all skin types, including combination and oily skin, subject to individual tolerance

Skin concerns:
Dehydration, uneven texture, dullness, fine lines, visible pores and reduced elasticity

Application areas:
Face and neck, avoiding direct contact with eyes

Preparation:
Cleanse skin before applying the booster.

Application:
Dispense a few drops and gently pat into the skin before ampoules, targeted serums and moisturiser.

Processing time:
Leave on; allow to absorb before layering other products.

Frequency:
Morning and evening

Removal:
Remove during normal facial cleansing.

Professional and home use:
Suitable for home skincare and non-invasive professional facial routines; not intended for immediate use on freshly treated or compromised skin.

Makeup compatibility:
Can be layered beneath moisturiser, sunscreen and foundation.

Testing information:
Supplied product information reports primary irritation, sensitive skin irritation and non-comedogenic testing. Individual results may vary.

Shelf life:
36 months from manufacture or 12 months after opening, according to supplied product information

Storage:
Keep tightly closed in a cool, dry place away from direct sunlight and excessive heat.

Cautions:
For external use only. Avoid contact with eyes. Patch test if sensitive and discontinue use if irritation develops.

Important formulation disclosure:
Contains six named peptides, but individual peptide concentrations are not disclosed in the supplied ingredient list. Contains soybean oil; review ingredients if you have relevant allergies.