We have seen them everywhere in anti-aging serums, rarely at the front of hair bottles. Peptides have long worked behind the scenes while we watch for every centimeter of growth and every lost hair. Today, they are coming out of the shadows.
Behind this trend, a question: do peptides for hair growth really make the difference compared to supplements, minoxidil or strengthening shampoos? Not only according to dermatologists and certain recent clinical studies. But the reality is more nuanced than the marketing promises.
How Hair Growth Peptides Work on the Hair Follicle
Basically, a peptide is a short chain of amino acids that sends a signal to the cells of the scalp and hair follicle. , explains Dr. Candace Thornton Spann, dermatologist in Las Vegas and co-founder of Couture Dermatology and Plastic Surgery, to the media Elle.com.
Dermatologists are also interested in how these molecules interact with the collagen matrix around the follicle. Certain copper peptides such as GHK Cu support local regeneration, while thymus peptides or injected biomimetic peptides seek to prolong the hair growth phase by keeping the follicle active for longer.
Studies on collagen peptides and copper peptides
A randomized, double-blind, placebo-controlled clinical study followed 60 Brazilian women aged 45 to 60 years supplemented for 90 days with 5 g per day of the highly bioavailable Peptan B bovine collagen peptides or a placebo. Result: +13% mechanical resistance of hair, thickening of the dermis and reduced facial wrinkles.
For copper peptides such as GHK Cu, laboratories report tests where regrowth is similar to that of minoxidil, with the addition of an anti-inflammatory action around the follicle. Biomimetic peptides injected in the office combine several peptides and nutrients to block brakes such as BMP4 and DKK 1 and revive resting follicles in two to three months.
Hair routine: use peptides correctly for hair growth
Above all, specialists point out that diagnosis remains essential. , says Dr. Candace Thornton Spann. She also emphasizes that not all falls react in the same way: , specifies Dr. Candace Thornton Spann.
In practice, the routines around peptides remain simple.
- Collagen supplement over 3 months.
- Peptide hair serum, applied daily.
- Gentle scalp massage to stimulate circulation.
Are hair peptides useful?
They strengthen existing hair.
When do we see results?
Usually after about three months.
Do minoxidil and peptides go together?
Often yes, according to medical advice.
