
Best Peptides for Hair Growth: Evidence, Protocols, and Limits
A practical hair-growth hub: which peptide and peptide-adjacent ingredients have real rationale, what is only cosmetic, and what still beats them for evidence.
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We publish evidence-based peptide guides focused on mechanisms, human evidence, regulatory status, side effects, sourcing risks and practical comparisons.

A practical hair-growth hub: which peptide and peptide-adjacent ingredients have real rationale, what is only cosmetic, and what still beats them for evidence.

BPC-157 and TB-500 are both marketed for recovery, but their evidence is mostly preclinical. Here's the clean comparison.

The Bryan Johnson hair protocol: Blueprint peptide shampoo, peptide serum, laser cap, minoxidil, ingredient roles, and supporting research.

GHK-Cu has real skin and follicle biology behind it, but the hair-growth evidence is still mostly early-stage and ingredient-level.

Ipamorelin and sermorelin both stimulate growth hormone release, but they work through different receptors and have very different regulatory histories.

Peptide shampoo can support scalp care, but rinse-off contact time limits what it can do. Here is how to judge peptide shampoos, ingredients, and the Blueprint option.

Sermorelin is a GHRH (growth-hormone-releasing hormone) analog. It's not a GLP-1 despite being often searched alongside them. Here's what sermorelin actually does and where it stands legally.

Zepbound currently leads on average weight loss in trials. Wegovy has the best cardiovascular evidence. Here's the honest head-to-head of every approved GLP-1 for weight loss.

GLP-1 weight-loss drugs produce 8–21% average body-weight reduction in trials. Here's how to think about them honestly — eligibility, results, cost, side effects, and what happens when you stop.