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Cosrx’s New Serum Redefines Facial Contour In Aging Skin

Blue peptide bakuchiol plump glow serum is powered by advanced peptide technology.

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By: Lianna Albrizio

Associate Editor

In its latest longevity launch, derma-skincare brand COSRX is supporting healthy aging while visibly improving skin plumpness and elasticity.

That innovation, Blue Peptide Bakuchiol Plump Glow Serum, is powered by advanced Peptide technology to combat noticeable signs of aging such as firmness and volume, which decline due to age, genetics and environmental exposure. In addition to the elements, shifts in lifestyle and body composition, such as significant weight changes, including those associated with the growing use of GLP-1-based treatments, can also influence facial volume and the appearance of skin firmness.

‘Synergistic Ingredients’

Rather than addressing these changes at the surface level, COSRX takes a more foundational approach, combining synergistic ingredients to improve skin volume while reinforcing its structure for a visibly firmer, more lifted look.

At the core of the formula is Blue Peptide (Copper TriPeptide-1), a premium ingredient naturally blue in color and known for supporting the skin’s structural integrity. Acting as a targeted “restoring signal,” it helps improve resilience, elasticity, and overall condition.

The formula is enhanced with bakuchiol, a plant-derived, low-irritation alternative to retinol that helps maintain firmness over time, along with a 5 Multi-Peptide Complex to support overall skin quality and balance. Together, the synergistic blend helps visibly improve firmness and elasticity, restores skin’s natural plumpness and bounce, refines the appearance of pores and enhances overall texture and radiance.

Designed for daily use, the serum features a lightweight, fast-absorbing texture that glides smoothly onto skin, leaving a soft, naturally luminous finish without heaviness or stickiness. Its gentle formulation makes it suitable for a wide range of skin types, including sensitive skin, offering an effective, yet approachable solution for those looking to support long-term skin health.

The Blue Peptide Bakuchiol Plump Glow Serum joins the brand’s 6 Peptide Skin Booster Serum and The Peptide Collagen Hydrogel Eye Patch. The Blue Peptide Bakuchiol Plump Glow Serum is available nationwide on Amazon and cosrx.com.

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