peptide
Peptides in skincare are short chains of amino acids, the building blocks of proteins like collagen, elastin, and keratin, which keep skin firm, smooth, and healthy.
When applied topically, peptides can:
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Boost collagen production → reducing fine lines and wrinkles.
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Improve skin elasticity → making skin look firmer.
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Support skin barrier → helping retain moisture and protect against damage.
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Soothe and repair → calming sensitive or irritated skin.
In short, peptides “signal” your skin to repair and strengthen itself, making them powerful anti-aging and skin-rejuvenating ingredients.
![COSRX Peptide Collagen lifting Glow Hydrogel Mask [1ea] - Suunsu Korean skincare](http://suunsu.com/cdn/shop/files/COSRXPeptideCollagenliftingGlowHydrogelMask_1ea_2.png?v=1769691126&width=1280)




![Biodance Collagen Peptide Eye Patch [60ea]](http://suunsu.com/cdn/shop/files/BODS06PATCHC1776229977385beb2465d4491_2aaab834-aae4-425b-a296-00b7381d27fe.jpg?v=1783611067&width=1280)
![[Sungboon Editor] Silk Peptide Intensive Lifting Ampoule 35ml - Suunsu Korean skincare](http://suunsu.com/cdn/shop/files/2025-08-1711.51.43.png?v=1755424325&width=1280)

