10 Peptides

Best Peptides for Hair Growth

Peptides and growth factors researched for hair regrowth, follicle stimulation, and preventing hair loss.

10Total Options

1FDA Approved

Understanding Hair Growth Peptides

Hair growth peptides work through several mechanisms including stimulating follicle stem cells, increasing blood flow to the scalp, and promoting the growth phase (anagen) of the hair cycle. GHK-Cu (copper peptide) is the most established, with research showing it stimulates hair follicle growth and increases follicle size. Growth hormone secretagogues may also support hair growth indirectly through improved systemic growth factor levels. Thymosin Beta-4 has shown effects on hair follicle stem cell migration.

Key Considerations

GHK-Cu can be applied topically or injected for hair benefits
Results typically take 3-6 months to become visible
Combining with minoxidil or finasteride may enhance results
Hair loss has many causes — address underlying issues first
Individual response varies significantly

FDA Approved Options (1)

Melanotan I

FDA Approved

Also: Afamelanotide, Scenesse, MT-1

A 13-amino acid synthetic analog of α-MSH that stimulates melanin production. FDA-approved (as Scenesse) for treating phototoxicity in patients with erythropoietic protoporphyria (EPP). More selective than Melanotan II with fewer side effects.

Typical Dosing

500-1000 mcg daily (loading), then 500-1000 mcg 1-2x weekly (maintenance)

Skin & HairView Details

Research Peptides (9)

These peptides are being researched but are not FDA approved. They should only be considered for research purposes or under medical supervision.

GHK-Cu

Clinical Trials

A naturally occurring copper-binding peptide found in human plasma, saliva, and urine. Widely used in skincare for its wound healing and anti-aging properties.

Skin & HairLearn more

Snap-8

Research

A cosmetic peptide that reduces wrinkles by inhibiting muscle contraction. Often called 'Botox in a bottle,' though its mechanism differs from actual botulinum toxin.

Skin & HairLearn more

Argireline

Research

A popular cosmetic peptide that reduces facial wrinkles by inhibiting neurotransmitter release. One of the most widely used peptides in anti-aging skincare.

Skin & HairLearn more

Matrixyl

Research

A collagen-stimulating peptide widely used in anti-aging skincare. One of the first peptides proven to reduce wrinkles by stimulating collagen synthesis.

Skin & HairLearn more

Matrixyl 3000

Research

An advanced version of Matrixyl combining two peptides for enhanced anti-aging effects. Targets both collagen production and inflammation.

Skin & HairLearn more

Copper Peptide AHK-Cu

Research

A copper-binding tripeptide primarily used for hair growth stimulation. Shows promise for both hair loss prevention and scalp health.

Skin & HairLearn more

TB-500

Preclinical

A synthetic 17-amino acid fragment of Thymosin Beta-4 (TB-4). Unlike TB-4, TB-500 has a longer half-life (~2-4 days vs ~2 hours) and is the active region responsible for tissue repair and cell migration. Note: Many vendors mislabel TB-4 as 'TB-500' in premixed products.

HealingLearn more

Pentadecapeptide

Preclinical

The full 15-amino acid sequence that includes BPC-157. While BPC-157 is more commonly discussed, the full pentadecapeptide has similar healing properties derived from gastric juice.

HealingLearn more

Dihexa

Preclinical

A potent cognitive-enhancing peptide derived from angiotensin IV. Reported to be 10 million times more potent than BDNF at promoting synaptogenesis.

CognitiveLearn more

Frequently Asked Questions

What peptides help with hair growth?

GHK-Cu (copper peptide) is the most studied peptide for hair growth, showing follicle stimulation and increased hair thickness. TB-500 may support hair follicle stem cell migration. GH secretagogues like Ipamorelin can indirectly support hair through improved growth factor levels.

How does GHK-Cu help hair growth?

GHK-Cu stimulates hair follicle cells, increases follicle size, and extends the anagen (growth) phase of the hair cycle. It also promotes blood vessel formation around follicles and has anti-inflammatory effects on the scalp.

Can peptides reverse balding?

Peptides may slow hair loss and promote regrowth in early-to-moderate stages, but they are unlikely to reverse advanced balding where follicles are fully miniaturized. Best results are seen when started early and combined with other treatments.