Peptides for Skin: Types and Benefits
How Peptides Work
Peptides are short chains of amino acids that signal skin cells to produce more collagen, elastin, or other structural proteins. They act as messengers, telling your skin to repair itself.
Signal Peptides
These stimulate fibroblasts to produce collagen and elastin. Palmitoyl tripeptide-1 and palmitoyl tetrapeptide-7 are the most studied. Results appear after 8-12 weeks of consistent use.
Carrier Peptides
Copper peptides (GHK-Cu) deliver trace minerals to the skin, promoting wound healing and collagen synthesis. They also have anti-inflammatory properties.
Neurotransmitter Peptides
Argireline (acetyl hexapeptide-3) blocks neurotransmitter release at the neuromuscular junction, mildly reducing expression lines. Think of it as a topical Botox-lite effect.
Enzyme Inhibitor Peptides
These block enzymes that break down collagen (MMPs). Soy and rice peptides are common examples that protect existing collagen stores.
How to Use Peptides
Apply peptide serums after cleansing and before moisturizer. They work well with most other ingredients, including hyaluronic acid and niacinamide. Use morning and night for best results.
