What makes COSRX The Blue Peptide Bakuchiol Plump Glow Serum particularly interesting is the way its peptide blend, hyaluronic acid complex, collagen, panthenol, betaine, and niacinamide complement the main actives. The result is skin that looks smoother, bouncier, and more refreshed with consistent use.
Key Benefits
• Firmer-Looking Skin — Copper Tripeptide-1 helps support the appearance of resilient, firmer-looking skin.
• Plumper, Bouncier Look — Multiple forms of hyaluronic acid, collagen, and humectants help skin look comfortably hydrated.
• Smoother Texture — Bakuchiol and the multi-peptide complex help improve the visible look of uneven texture.
• More Radiant Appearance — Niacinamide and the formula’s hydrating base help skin appear brighter and more refreshed.
• Pore & Early-Aging Care — COSRX The Blue Peptide Bakuchiol Plump Glow Serum helps minimize the visible appearance of pores while supporting early signs of aging care.
Key Ingredients
Here’s what powers the COSRX The Blue Peptide Bakuchiol Plump Glow Serum:
Copper Tripeptide-1 (GHK-Cu)
Present at 0.5% (5,000ppm), Copper Tripeptide-1 is the signature blue-toned peptide in the formula. It helps support the appearance of skin resilience and firmer-looking skin while targeting visible early signs of aging.
Bakuchiol
Bakuchiol is included at 0.25% (2,500ppm). This plant-derived active is commonly used as a retinol alternative and is included here to support early-aging care while helping improve the look of pores, texture, and radiance.
5 Multi-Peptide Complex
The serum contains a blend of peptides designed to work across multiple aspects of visible skin aging. Together, they support a smoother-looking texture and firmer-looking complexion.
Niacinamide
Niacinamide helps improve the appearance of uneven skin tone and supports a brighter, more balanced-looking complexion. It also complements the serum’s overall skin-conditioning approach.
5-Type Hyaluronic Acid
Different forms of hyaluronic acid help provide multi-level hydration, helping dehydrated skin look fuller, smoother, and more supple. The formula includes sodium hyaluronate, hyaluronic acid, sodium hyaluronate crosspolymer, hydrolyzed hyaluronic acid, and sodium acetylated hyaluronate.
Panthenol & Beta-Glucan
Panthenol and beta-glucan help condition and comfort the skin while supporting a well-hydrated, healthy-looking complexion. They balance the more active-focused ingredients with additional soothing care.
Hydrolyzed Collagen
Hydrolyzed collagen contributes to the serum’s moisture-focused formula and helps support a soft, plump-looking skin finish.
Best For
- Dry Skin — Moisture support
- Dehydrated Skin — Plumping hydration
- Normal Skin — Daily skin conditioning
- Combination Skin — Lightweight texture
- Sensitive Skin — Gentle early-aging care
- Mature Skin — Firmness-focused routine
Targets These Concerns
• Loss of visible firmness and elasticity
• Dehydration and lack of bounce
• Uneven skin texture
• Enlarged-looking pores
• Dull-looking complexion
• Uneven skin tone and dark spots
• Early signs of visible aging
Not Recommended For
- Damaged or broken skin — Avoid application until the skin has recovered.
- Irritated skin — Stop use if redness, swelling, itching, or other irritation develops.
- Active-heavy routines — COSRX recommends avoiding use together with high-concentration Vitamin C products; other retailers also advise separating it from direct acids and retinoids.
How to Use
- Cleanse — Wash your face gently and pat dry.
- Prep — Apply your toner and let it absorb comfortably.
- Apply Serum — Dispense an adequate amount of COSRX The Blue Peptide Bakuchiol Plump Glow Serum and spread evenly from the center of the face outward, avoiding the eye area.
- Finish — Follow with moisturizer; during the daytime, finish with sunscreen.
Use: AM / PM
Where in routine: After toner, before moisturizer
Pro Tip: If you’re new to Bakuchiol or peptide-focused treatments, start once daily and gradually build your routine based on how your skin feels.
















