30/05/2026
Peptides have become one of the most talked-about topics in both aesthetics and wellness, and the questions I’m getting about them are coming up more and more.
The interest makes sense. Peptides are short chains of amino acids that act as signalling molecules, essentially instructing cells to carry out specific functions like repair, collagen production, reducing inflammation, and tissue regeneration. They’re available both topically in skincare and systemically as injectables, and the range of applications being explored is broad.
In the US in particular, they’ve gained significant traction, with compounds like BPC 157 becoming widely used for recovery and muscle repair, among others. The appeal is understandable. The science behind the mechanism is genuinely interesting, and some of the early data is promising.
Where I’d urge caution is around the current state of the evidence.
Peptides as a category are not all equal, and while there are some well-researched topical peptides with solid clinical backing, the injectable peptide space is a different conversation. Large-scale, robust studies on long-term safety, optimal dosing, and clinical outcomes simply don’t exist yet for many of these compounds. That gap matters, particularly when we’re talking about substances being injected rather than applied to the surface of the skin.
It’s a space worth watching closely, and one where the science needs to catch up with the enthusiasm before blanket recommendations can be made.