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Microneedling is a procedure that uses fine needles to stimulate collagen production and improve skin and hair health.

Platelet-Rich Plasma reactivates dormant hair follicles by delivering growth factors that stimulate hair growth.

Redensyl uniquely targets hair follicle stem cells to reactivate hair growth.

There is no verified human trial showing that B1 or B2 deficiency causes thinning hair or that correcting it regrows hair; a 2019 review concludes the role of micronutrients in hair loss is real but unclear and still needs controlled trials.

Microneedling boosts hair growth by stimulating follicle activity and enhancing blood flow.

Laboratory research in mice reports that SCUBE3, a protein released by dermal papilla cells, signals dormant follicles to grow through the TGF-β pathway downstream of Hedgehog; minoxidil and finasteride instead work on blood flow to the follicle and on DHT, and unlike SCUBE3 they have decades of human trial data behind them. SCUBE3 has not been tested in human clinical trials and is not available as a medicine.

No GHK-Cu product has published human trial evidence for hair loss, so none can be ranked on efficacy; what separates products is formulation quality — purity, stability and third-party testing — and the FDA lists GHK-Cu among bulk substances that may present significant safety risks in compounding.

Alopecia areata patches usually still have living follicles. Peptides are being studied as a possible add-on, but the evidence is small and early. See a dermatologist for treatment.

KY19382 is an experimental hair growth compound targeting the Wnt/β-catenin pathway, unlike minoxidil and finasteride.

Hair fibers may irritate sensitive scalps and worsen dandruff conditions.

Biotin may support hair health, but its effectiveness varies and is often overstated.

PP405 is not a peptide and does not block DHT: it is an experimental topical gel from Pelage Pharmaceuticals that inhibits the mitochondrial pyruvate carrier, aimed at waking dormant follicles. Its registered Phase 2 trial (NCT06393452) measured safety and tolerability in 78 adults with pattern hair loss; it is not approved and not for sale.

Neither route has been tested: there is no published human trial of topical or oral osteopontin for hair loss. The evidence is preclinical, and it points both ways — injected osteopontin promoted hair growth in mice, while an osteopontin-derived peptide suppressed growth in human scalp tissue and is being developed to remove unwanted hair.

Oleic acid strengthens hair follicles by enhancing hydration and reducing inflammation.

Vitamin C is essential for collagen synthesis and overall hair follicle health.

Selenium supports hair growth by working with zinc, iron, and vitamin D to maintain cellular health.

There is no controlled human trial showing follistatin treats hair loss; the published work is mouse and laboratory biology on the activin/follistatin signalling system, plus one small 2011 phase 1 injection study of a combination product, so follistatin remains experimental and unapproved.

Redensyl, Capixyl, Procapil, Anagain, and Baicapil are promising alternatives for hair loss treatment.

PP405 is an experimental topical gel from Pelage Pharmaceuticals that inhibits the mitochondrial pyruvate carrier; its registered Phase 2 trial (NCT06393452) tested it once daily in 78 adults with pattern hair loss, for safety and tolerability. It is not approved, not for sale, and has not been studied in alopecia areata or stress-related shedding.

Thymosin Beta 4 is a peptide being researched for its potential to enhance hair follicle regeneration.

Niacinamide nourishes hair follicles by boosting energy production and supporting antioxidant defenses.

Folate is required for the DNA synthesis that fast-dividing hair matrix cells depend on, and severe deficiency causes anemia—but no published trial has given folic acid to people with hair loss and measured the result, so a growth effect is a mechanism, not a finding.

Osteopontin aids scalp healing by attracting immune cells and promoting growth factors.

KX-826 (pyrilutamide) is an experimental topical androgen receptor blocker from Kintor Pharmaceutical. It is not approved as a medicine anywhere; the company reports that its China Phase III trial met its primary endpoint at 24 weeks, but the trial data has been released through corporate announcements rather than peer-reviewed journals and long-term safety is unknown.

sh-Polypeptide-7 is the INCI name for a lab-made form of human growth hormone (somatotropin) — not EGF, which is sh-Oligopeptide-1. Growth hormone and IGF-1 signalling is documented in hair follicle biology, but there is no published human trial of sh-Polypeptide-7 applied to the scalp for hair growth or scalp inflammation.

Biotin is important for hair health, but supplementation is often unnecessary for most people.

Yes, hair fibers can be used with minoxidil or finasteride without any chemical interaction.

Thymosin Beta 4 is not an ingredient in any approved or regulated hair-loss product — it is an unapproved research peptide (sold online as TB-500). Published hair studies are in rats and mice only, from one research group; there are no human trials, and the same literature reports it can promote tumour growth.

Capixyl is a hair growth complex combining peptides and red clover extract to promote healthier hair.

Microneedling for hair loss should be done every 3 to 4 weeks for best results.