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If you’ve been looking for a "foundation" for your skincare routine that makes every other product work better, COSRX The 6 Peptide Skin Booster Serum is your new secret weapon. This isn't just a serum; it’s a high-performance "booster" designed to prep, treat, and revive your skin in one single step.

Here is the simple guide to the multi-tasking serum that is currently taking over the skincare world.

Product Overview

The COSRX 6 Peptide Skin Booster is a first-step serum that targets six different skin concerns at once. It has a watery, lightweight texture that sinks in instantly, making it the perfect base layer. Whether you want to improve firmness, texture, or tone, this serum "boosts" your skin's overall health and enhances the absorption of whatever you apply next.

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Full Ingredient List
Formulated for safety & efficacy

Key Ingredients
Hero ingredient: Peptide complex
- Peptide complex: Supports a smoother-looking appearance and improves the look of firmness over time.
- Hydrating support: Helps maintain skin comfort and reduce the feel of dryness.
- Skin-conditioning agents: Help improve the feel of softness and smoothness.

Application Guide

Follow these simple steps for best results

Q: Is this product suitable for daily use? A: It depends on the product type and your skin/hair tolerance. Gentle moisturizers, cleansers and sunscreens may be used daily; retinoids and exfoliating acids should be introduced gradually. Q: Can sensitive skin use it? A: Sensitive skin should patch test first and start slowly. If stinging, burning, swelling or persistent redness appears, stop use and consult a dermatologist/pharmacist. Q: Can I use it while pregnant or breastfeeding? A: For pregnancy or breastfeeding, check with your doctor first, especially if the product contains retinoids, exfoliating acids, strong brightening actives or other intensive ingredients. Q: Where does it fit in my routine? A: Use it according to texture and product type: cleanser first, toner next, serum/ampoule, cream, then sunscreen in the morning. Q: Can I layer it with other products? A: Yes, but keep layering simple. Avoid adding too many strong actives at once, especially if your skin is sensitive.
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