
COSRX 6 Peptide Booster Serum - Firmness & Early Anti-Aging Care
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COSRX The 6 Peptide Skin Booster Serum is a lightweight first step treatment designed to target multiple early skin concerns including fine lines, uneven texture, dullness, dehydration, enlarged pores, and loss of firmness. Formulated with a powerful 6 Peptide Complex alongside hydrating and barrier supporting ingredients, this multi concern serum helps improve overall skin condition while preparing the skin for the rest of your skincare routine.
Unlike heavy anti aging treatments that can feel rich or overwhelming on the skin, this booster serum features an ultra lightweight toner like texture that absorbs quickly without stickiness or residue. The formula helps support smoother, firmer, and healthier looking skin while enhancing hydration and skin comfort throughout the day.
The serum combines six different peptides that work together to support elasticity, skin texture refinement, pore appearance, hydration balance, and skin resilience. Additional ingredients including niacinamide, hyaluronic acid, allantoin, and adenosine help brighten dull skin, maintain moisture retention, and support smoother looking skin over time.
Designed for all skin types including sensitive and acne prone skin, the COSRX 6 Peptide Booster Serum integrates easily into both beginner and advanced skincare routines. It layers comfortably with ingredients such as vitamin C, retinol, hydrating serums, and moisturizers, making it ideal for preventative skincare and long term skin maintenance.
Clinical testing shared by COSRX reported improvements in hydration, texture, radiance, and skin density with continued use.
Key Benefits
• Helps improve skin firmness and elasticity
• Supports early anti aging skincare routines
• Improves hydration and moisture retention
• Helps smooth uneven skin texture
• Supports brighter and more radiant looking skin
• Lightweight non sticky texture suitable for layering
• Helps refine the appearance of pores
• Suitable for sensitive and acne prone skin
Who It’s For
Ideal for:
• Early signs of aging
• Fine lines and uneven texture
• Dull and dehydrated skin
• Sensitive skin
• Acne prone skin
• Preventative skincare routines
• Combination and normal skin types
Texture & Finish
Texture: Lightweight watery serum
Finish: Smooth, hydrated, fresh, and naturally radiant skin
How to Use
After cleansing, apply a few pumps evenly across the face as the first serum or treatment step. Gently pat into the skin until fully absorbed.
Follow with additional serums, moisturizers, or targeted treatments as part of your skincare routine.
Suitable for both morning and evening use. Apply sunscreen during daytime routines.
COSRX recommends using the serum before ampoules, serums, and moisturizers to help prep and hydrate the skin.
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