COSRX The Blue Copper Peptide Bakuchiol Serum, Korean Peptide Plumping Serum for Face, GHK-Cu Copper Peptides with Bakuchiol, Glow & Plump, Anti-aging & Skin Firming Care, Korean Skin Care, 1.69 Fl Oz

Price: $27.00
(as of Jun 15, 2026 11:48:50 UTC – Details)

Product description

1 Copper Tripeptide-1

2 Bakuchiol

3 The Power You Can See

Can I use the Blue Peptide Serum/Cream with other active ingredients?

We recommend using the Blue Peptide Serum/Cream separately from strong active ingredients such as high-strength vitamin C or high-retinoids products. For best results, use them at different times of the day to help minimize potential irritation.

When should I use this serum?

We recommend using the Blue Peptide Bakuchiol Serum in your AM and PM skincare routine, after cleansing and toning, and before applying moisturizer. Apply an appropriate amount and gently pat into the skin to leave it looking plump and healthy.

Is this serum sticky or heavy?

No, the formula has a lightweight texture that absorbs smoothly into the skin, leaving it feeling hydrated, plump, and comfortable without a heavy or sticky finish.

Is this suitable for sensitive skin?

Yes. This serum passed irritation testing with a 0.00 irritation score and is designed as a low-irritation formula for sensitive skin. However, as with any active ingredients, we recommend patch testing before use if your skin is easily irritated.

Why is this serum blue?

The natural blue hue comes from Copper Tripeptide-1, also known as GHK-Cu. It gives the formula its signature blue color without artificial coloring.

Your New Daily Skincare Routine

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Customer Reviews

4.6 out of 5 stars 11,792

4.6 out of 5 stars 11,792

4.9 out of 5 stars 11

4.4 out of 5 stars 3,959

4.6 out of 5 stars 68

4.6 out of 5 stars 898

4.5 out of 5 stars 1,136

Price

$27.00$27.00

$21.00$21.00

$28.00$28.00

$23.00$23.00

$26.00$26.00

$15.00$15.00

$17.00$17.00

Best for Your Skin Concern

Loss of Elasticity, Fine Lines

Dull, Uneven Skin

Loss of Elasticity, Dryness

Puffiness, Loss of Firmness

Dullness, Loss of Glow

Dull, Dry Skin

Dull, Tired Skin

Main Ingredients

Copper Peptide 0.5%, Bakuchiol

6 Multi Peptides

Copper Peptide 0.5%, Bakuchiol

4 Multi Peptides, Collagen

3 Multi Pepdides, 6 Collagens

6 Multi Peptides, Niacinamide

PDRN, Exosome

What You’ll Notice

Skin feels visibly firmer

Skin feels touchably soft

Skin feels hydrated and bouncy

Under-eye looks firmer

Skin feels smooth and glowy

Skin feels more elastic

Skin looks dewy and radiant

Skin Type

All skin

All skin

All skin

All skin

All skin

All skin

All skin

Tested on sensitive skin

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Not tested on animals

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Package Dimensions ‏ : ‎ 4.21 x 2.13 x 2.05 inches; 6.35 ounces
Manufacturer ‏ : ‎ COSRX
ASIN ‏ : ‎ B0GWPQ7FS4
Best Sellers Rank: #627 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #23 in Facial Serums
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A NEXT GEN ANTI-AGING CARE: Powered by the synergy of Copper Peptide 0.5%+ Bakuchiol 0.25%, this advanced formula helps improve fine lines, support elasticity, and maintain a firmer, more revitalized look.
PLUMPING SERUM WITH DEEP HYDRATION: This daily plumping serum helps replenish moisture from within, leaving skin looking fuller, smoother, and naturally radiant.
GENTLE DAILY PEPTIDE CARE WITH BAKUCHIOL: Formulated with bakuchiol, this low-irritation formula can be used daily to help improve the look of pores, texture, and overall skin clarity.
EARLY SIGNAL CARE: Designed to address the first visible signs of skin change before pores look more pronounced, fine lines begin to settle, and red marks appear to linger longer on the skin.
SKIN REMODELING: Designed to help reactivate the skin’s natural renewal process and support the extracellular matrix, improving the look of texture, firmness, and overall skin clarity.
APPLICATION INSTRUCTIONS: Apply a few drops to clean skin AM or PM. Avoid using in the same routine with vitamin C, direct acids, or retinoids. Patch testing is recommended before use.