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Why peptides are the most exciting intersection between biotechnology and dermatology

PDRN, a bioactive molecule, has gained popularity in Korea. It is commonly used in treatments designed to restore skin quality rather than simply reduce wrinkles.

In the evolving world of dermatology and aesthetic medicine, peptides have emerged as some of the most important bioactive ingredients in skincare. What was once considered an adjunct ingredient has now become central to modern formulations. They’re biologically active molecules that influence cellular communication, collagen synthesis, inflammation, and tissue healing. It’s aimed at skin regeneration, repair, and longevity.

Peptides are short chains of amino acids that serve as building blocks for proteins such as collagen, elastin, and keratin. These proteins maintain the structure, strength, and elasticity of skin. As we age, natural collagen production declines and cellular signalling becomes less efficient. Peptides help restore this communication by acting as signalling molecules that instruct skin cells to repair damage, produce collagen, and maintain barrier function.

Peptides are essentially reminder messages for your skin. When you are young, the body sends constant instructions to repair and regenerate. With age, those messages fade. Peptides simply remind the skin what it already knows how to do.

Also read: What’s your ideal skincare routine? It depends on your lifestyle

Major types of peptides 

Peptides used in dermatology are typically categorised based on their biological function.

Signal peptides stimulate fibroblasts, the cells responsible for producing collagen and elastin. By mimicking fragments of damaged collagen, they trigger the skin’s repair........

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