COSRX The Blue Peptide Bakuchiol Plump Glow Serum, 50 ml

COSRX The Blue Peptide Bakuchiol Plump Glow Serum is a 50 ml facial serum featuring GHK-Cu copper peptides and bakuchiol. The listing positions it for hydration and the appearance of firmer, plumper skin, with instructions to keep it separate from vitamin C, direct acids and retinoids within the same routine.

At a glance

Features GHK-Cu copper peptides and bakuchiol, according to the listing.
The brand describes it as a daily serum for hydration and the appearance of plumper, smoother skin.
Apply a few drops to clean skin in the morning or evening, following the stated ingredient-separation guidance.

Price

£16.99Save 37%

Reference price: ~~£27.00~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

A drop-form serum with a stated 50 ml volume for a regular skincare routine.
The stated goals combine hydration and the appearance of improved firmness, texture and glow.

Technical specifications

6 specifications

Identity
Brand	COSRX

Dimensions and installation
Weight listed	188 Grams

Product details
Form	Drop
Number of items	1
Country of origin	Korea, Republic of
Package dimensions	10.7 x 5.4 x 5.2 cm; 188 g

What to know before buying

Listing details to confirm

The listing advises against using this serum in the same routine as vitamin C, direct acids or retinoids. It suggests using vitamin C at a different time of day from its peptide serum guidance.

Who is it for?

A good fit for

People seeking a drop-form facial serum with bakuchiol and GHK-Cu copper peptides.
Buyers looking for a hydrating serum positioned for early visible changes such as uneven texture or loss of bounce.

Less suited to

Those wanting to use vitamin C, direct acids or retinoids in the same skincare routine as this serum.

COSRX The Blue Peptide Bakuchiol Plump Glow Serum, 50 ml · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 1,139 ratings

5 stars75%75%
4 stars12%12%
3 stars7%7%
2 stars3%3%
1 star3%3%

Customer feedback describes a hydrated, plump-looking finish, a non-greasy feel and quick absorption, including reports that it sits comfortably under moisturiser. Experiences are not uniform: some customers report improvement without irritation, while others say their skin did not improve or that they experienced breakouts. These are reported impressions, not guaranteed results, so the serum’s claimed suitability for everyday use should not be taken as a guarantee for every skin type.

Positive themes

Customers report a plump, glowing appearance and a non-greasy texture.
Feedback describes hydration, quick absorption and comfortable layering under moisturiser.

Negative themes

Some customers report breakouts after use.
Some customers say they did not see an improvement in their skin.

Mixed feedback

Reports on skin effectiveness and irritation vary, despite the listing describing the formula as gentle for daily use.

Frequently asked questions

How should I apply the serum?

The listing says to apply a few drops to clean skin in the morning or evening.

Can I use it with vitamin C or retinoids?

The instructions say not to use it in the same routine as vitamin C, direct acids or retinoids. The listing suggests separating its peptide products and vitamin C into different times of day.

What skin concerns is it marketed for?

The listing describes it as targeting the appearance of early signs such as uneven texture, enlarged-looking pores and loss of bounce, while supporting hydration and a plumper-looking complexion.