Lightweight, Multi-Peptide Booster to Firm, Brighten & Balance Skin
The COSRX The 6 Peptide Skin Booster Serum is a K-beauty ultra-light prep serum loaded with six powerful peptides — like SH-Polypeptide-121, Copper Tripeptide-1, and Acetyl Hexapeptide-8 — that target key skin needs such as pores, sebum control, firmness, fine lines, texture, tone and calming.
Its watery, non-sticky texture layers beautifully under other products, serving as an essential first step to boost your routine's effectiveness and support healthy, youthful-looking skin. Suitable for all skin types, including sensitive, it delivers daily nourishment and anti-aging benefits without heaviness or stickiness.
✨ Why You’ll Love It:
- 6 Peptides — Improves elasticity, smooths fine lines, and strengthens skin barrier
- Skin-Boosting Formula — Preps skin for better absorption of serums & creams
- Pore-Refining & Smoothing — Improves skin texture for a youthful glow
- Lightweight, watery texture — Fast-absorbing, non-sticky finish
FREQUENTLY ASKED QUESTIONS
How is this different from other COSRX serums?
Can I use it with other COSRX products?
Is this serum suitable for sensitive skin?
First Step Booster
Key Ingredients
