Free Shipping on £25+ Spend

Free Shipping on £25+ Spend

Free Shipping on £25+ Spend

Free Shipping on £25+ Spend

Free Shipping on £25+ Spend

Free Shipping on £25+ Spend

Free Shipping on £25+ Spend

Free Shipping on £25+ Spend

Free Shipping on £25+ Spend

Free Shipping on £25+ Spend

COSRX

The 6 Peptide Skin Booster Serum (150ml)

£20.99

Taxes included.

Lightweight Multi-Peptide Firming & Renewal Serum The COSRX The 6 Peptide Skin Booster Serum is a lightweight, toner-like serum powered by six multi-functional peptides designed to visibly firm, lift, and renew the skin. Formulated w... Read more

Free UK shipping on orders over £25 2–3 day UK delivery 100% genuine K-beauty, shipped from the UK
Product Info

Lightweight Multi-Peptide Firming & Renewal Serum

The COSRX The 6 Peptide Skin Booster Serum is a lightweight, toner-like serum powered by six multi-functional peptides designed to visibly firm, lift, and renew the skin. Formulated with Copper Tripeptide-1, Acetyl Hexapeptide-8, and Palmitoyl Tripeptide-8, this fast-absorbing serum targets fine lines, uneven texture, and loss of elasticity — delivering results you can see and feel.

Enriched with Sodium Hyaluronate for deep, lasting hydration and Niacinamide to even skin tone and refine pores, the silky formula absorbs instantly without stickiness — the perfect first step in any routine or a booster layered under your favourite serum and moisturiser.

✨ Why You'll Love It

  • 6 Peptide Complex – Visibly firms, lifts, and reduces fine lines
  • Sodium Hyaluronate – Deep, lasting plumping hydration
  • Niacinamide – Evens skin tone and minimises pore appearance
  • Adenosine – Helps smooth the appearance of wrinkles
  • Toner-like texture – Absorbs instantly, perfect for layering

Use generously as a booster before your serum, or layer 2–3 times for amplified firming results.

💚 Skin-Friendly Daily Care

  • Hypoallergenic
  • Dermatologist tested
  • Cruelty-free
  • Free from parabens, sulfates, and phthalates
  • Suitable for: All skin types

How to Use

After cleansing, apply 2–3 pumps to the entire face as the first step of your skincare routine. Gently pat into skin and follow with your favourite serum and moisturiser. Layer 2–3 times for amplified results.

Tip: Use morning and evening. The more you apply, the greater the firming effect.

⚠️ Hazards & Cautions

  • For external use only.
  • Avoid contact with eyes.
  • Discontinue use if irritation occurs.
  • Keep out of reach of children.
  • Store away from direct sunlight.

Size: 150ml   Country of Origin: Korea

Shipping & Delivery

We work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with tracking information. Delivery times vary depending on your location.

Product reviews

Customer reviews

What customers say about shopping with us

4.8
★★★★★★★★★★
68 verified customer ratings
5 ★ 93%
4 ★ 4%
3 ★ 0%
2 ★ 0%
1 ★ 3%
★★★★★★★★★★

I am very happy with both the product and the service I received. You can really feel the quality ingredients. My order arrived quickly, well-packaged and in perfect condition. Highly recommended product and seller — I will definitely be buying again!

Verified buyer · Jul 2025
★★★★★★★★★★

Product arrived next day following purchase. Used it for around a week now and skin is feeling great and looks hydrated. Would recommend for women over 50! Will order again.

Verified buyer · Apr 2025
★★★★★★★★★★

Great pimple patches — doesn’t irritate my sensitive skin, clears them up quickly. Would recommend 😊

Verified buyer · Aug 2024
★★★★★★★★★★

Great purchase, arrived super quick and was exactly the product I was expecting. Thanks!

Verified buyer · Nov 2025
★★★★★★★★★★

Excellent service, my items arrived the next day.

Verified buyer · Jun 2025
★★★★★★★★★★

Fast delivery and very good quality product.

Verified buyer · Mar 2026
★★★★★★★★★★

Great quality – fast delivery – packaged well – thanks x

Verified buyer · Nov 2023
★★★★★★★★★★

Super fast fulfilment and delivery. Exactly as described.

Verified buyer · May 2024
★★★★★★★★★★

Slight delay in delivery but not an issue. Was kept informed at every point.

Verified buyer · Mar 2026
★★★★★★★★★★

Really happy with this purchase, and delivery was very good.

Verified buyer · Oct 2024

Ratings and reviews are from verified Soul Skin orders.