07/24/2025
Peptides are short chains of amino acids — essentially the building blocks of proteins like collagen, elastin, and keratin. But their real power lies in how they communicate with the skin. Peptides act as signaling molecules, sending messages that can trigger the skin to behave in certain ways, such as producing more collagen, calming inflammation, or repairing damage.
Think of peptides like little messengers. For example, when collagen breaks down (due to aging or damage), the body releases certain peptides as a distress signal. These
“signals” tell the skin it needs to make more collagen. Skincare scientists have figured out how to create synthetic peptides that mimic these natural signals, essentially tricking the skin into responding - without actual damage.
There are many different types of peptides used in skincare:
Signal peptides (like palmitoyl pentapeptide-4 aka Matrixyl) boost collagen and elastin production.
Carrier peptides (like copper peptides) deliver trace elements to support skin healing and enzyme function.
Neurotransmitter-inhibiting peptides (like
Argireline) work similarly to Botox by reducing muscle contractions that lead to expression lines.
Enzyme-inhibiting peptides slow the breakdown of Collagen & Elastin
Peptides can be used strategically in facials and in homecare routines to target aging, barrier repair, pigmentation, or inflammation
- all without triggering irritation.
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