Cosrx The 6 Peptide Skin Booster Serum 150ml

Cosrx The 6 Peptide Skin Booster Serum 150ml is a lightweight, multi-tasking serum designed to address common skin concerns intensified by Dhaka’s hot and humid climate. Pollution, sweat, and heat can lead to dullness, enlarged pores, uneven tone, and loss of firmness. This serum combines a blend of six peptides with niacinamide to support skin structure, improve texture, and regulate sebum. It is suitable for those looking for a daily booster that hydrates, firms, and refines pores without feeling heavy.

Key Benefits

• Supports skin firmness and elasticity — The six-peptide complex works to stimulate collagen synthesis in the skin’s deeper layers, helping to maintain a lifted, plump appearance over time. This is particularly helpful for those experiencing early signs of laxity from environmental stress.
• Helps even out skin tone — Niacinamide, a well-studied form of vitamin B3, inhibits melanosome transfer and reduces the appearance of dark spots and post-acne marks. Regular use can lead to a more uniform complexion, especially in skin prone to hyperpigmentation from sun or pollution.
• Minimises the look of pores and controls sebum — Niacinamide also regulates sebocyte activity, helping to reduce excess oil production. Combined with the serum’s lightweight texture, this helps tighten pores and keep skin matte throughout Dhaka’s humid afternoons.
• Hydrates without stickiness — The serum contains humectants like glycerin and sodium hyaluronate that attract moisture to the skin. Because it is formulated in a booster base, it absorbs quickly and leaves no greasy residue — ideal for layering in high humidity.
• Strengthens the skin barrier — Peptides and niacinamide both support the synthesis of structural proteins and ceramides, helping to fortify the barrier against pollution and daily environmental aggressors common in urban Bangladesh.

Key Ingredients

• Copper Tripeptide-1 — A signalling peptide that stimulates collagen and elastin production. It also has antioxidant properties, helping to neutralise free radicals generated by UV exposure and pollution.
• Palmitoyl Pentapeptide-4 — A pentapeptide that mimics the fragment of collagen that triggers fibroblasts to produce new collagen. It supports skin repair and firmness.
• Acetyl Hexapeptide-8 — Often referred to as a “relaxing” peptide, it works by inhibiting the release of neurotransmitters that cause muscle contraction, helping to soften expression lines over time.
• Niacinamide (Vitamin B3) — At a concentration that supports sebum regulation, pore refinement, and even skin tone. It also enhances barrier function by boosting ceramide production.
• Sodium Hyaluronate — A low-molecular-weight form of hyaluronic acid that penetrates the upper layers of skin to provide long-lasting hydration without heaviness.

Best For

• Oily and combination skin types that need hydration without added oil.
• Those with enlarged pores or rough texture looking for a daily refining step.
• Skin showing early signs of loss of firmness, such as subtle sagging or tired appearance.
• Uneven skin tone, including sun spots, post-acne marks, and general dullness.
• Individuals in humid climates who want a mattifying, pore-tightening serum that can be worn under sunscreen or makeup.

Not Recommended For

• Those with known sensitivity to peptides or niacinamide — perform a patch test on the inner arm before full-face application.
• Severely dehydrated or compromised skin barriers that require a richer, occlusive formula; this serum is a lightweight booster and may not provide enough emollience alone.

How to Use

1. After cleansing and toning, dispense 2–3 drops of the serum into your palm. (A single pump or dropperful is roughly the right amount.)
2. Warm the product between your hands for a few seconds, then press gently onto your face and neck. Avoid rubbing — pressing helps absorption and minimises irritation.
3. Allow the serum to absorb for 30–60 seconds before applying the next product in your routine (moisturiser or sunscreen).
4. Use twice daily — once in the morning after cleansing and before sunscreen, and once in the evening after toning and before your moisturiser.
5. If you are new to peptides, start with once daily (PM only) for the first week, then increase to twice daily if no irritation occurs.

Routine Fit

This serum fits best in the booster or essence step of your routine — after cleansing and toner, but before moisturiser or sunscreen. In Dhaka’s humid climate, you can skip a heavy moisturiser in the AM and follow the serum directly with a lightweight, water-resistant sunscreen (SPF 30+). In the PM, layer it under a gel or water-based moisturiser if you have oily skin, or under a cream with ceramides if your skin is combination. The serum is compatible with most other products, but avoid layering it directly after a strong exfoliating acid (like 10% lactic acid or 2% salicylic acid) — wait 10–15 minutes or alternate the two in different routines. For best results, pair with a gentle foaming cleanser and a niacinamide-based moisturiser to complement the pore-refining and brightening effects. Because it contains peptides, it can be used alongside vitamin C (in the AM) or retinol (in the PM) — simply apply the serum first, let it dry, then follow with the active. If using retinol, wait 20 minutes after the serum to reduce potential irritation. The 150ml bottle typically lasts 3–4 months with twice-daily use, making it an affordable, daily investment for Dhaka’s challenging environment.

Check on Delivery: Inspect the product carefully when you receive your order. Packaging can vary between batches while the product remains the same original item.

Storage: Store in a cool, dry place away from direct sunlight. Keep out of reach of children. Check expiry date on packaging before use.

Patch Test: If you have sensitive skin, apply a small amount to your inner wrist and wait 24 hours before full use. Stop use if irritation occurs.