Are topical peptides your shortcut to plumper, firmer skin? Here’s what research really shows about collagen claims.

Hey Reader!

Ever seen a cream promise “collagen-boosting” power thanks to peptides? This week, we’re breaking down one of the most popular claims.

Do Peptides Really Build Collagen?

Brands promise that peptides can boost collagen production and firm your skin. Here’s the truth: while certain signal peptides have been shown to stimulate collagen in lab settings, most skincare products don’t contain the same types (or at the same concentrations) as those used in clinical research. And many peptides don’t even penetrate the skin deeply enough to make a difference.

Even more is coming next week, but if you are curious now, you can read the full article.

​Get the Full Collagen Breakdown ➜​

💡 Skincare Quick Tip: Some peptides (like palmitoyl pentapeptide-4) show evidence for collagen support, but the effect is modest, and results depend on the formula.

Did you expect a stronger effect? Have you tried a “collagen peptide” product? Hit reply with your experience!

​

More myths busted next week,

Allie

​

Want To Learn Even More About The Science of Skincare?

Check out these related articles on RelatableSci.com that break down the science of skincare a little more.

Do you want to read past newsletters? Head over to the archive of all of our previous newsletter series.

​Relatable Skincare Report Archive​

Stay tuned for my next email. And if you found this interesting, share it with a friend! And if a friend sent this to you and it was helpful, subscribe so that you get it delivered to your inbox next week, and a free routine audit guide to say welcome!

​Subscribe and Get the Free Skincare Routine Audit Guide​

In the meantime, please respond to this email and tell me what skincare topics you’re curious about.

​