Is PP405 available for purchase?

No. PP405 is an investigational topical small molecule developed by Pelage Pharmaceuticals. It is currently in Phase 2 clinical trials for androgenetic alopecia and is not available through any pharmacy, dermatology clinic, or peptide vendor. Phase 3 trials are planned for 2026.

How does PP405 differ from minoxidil or finasteride?

PP405 works through a completely different mechanism than existing hair loss treatments. It inhibits the mitochondrial pyruvate carrier (MPC) in hair follicle stem cells, shifting cellular metabolism to reactivate dormant follicles. Minoxidil works through vasodilation and finasteride blocks DHT. PP405 has no systemic absorption, unlike finasteride.

Could PP405 be used with other hair loss treatments?

PP405's novel mechanism of action (metabolic reprogramming of follicle stem cells) is independent of the pathways targeted by minoxidil, finasteride, and other treatments. Combination use could theoretically be complementary, but this has not been studied and safety of combinations has not been established.

PP405: Community Protocols & Reports

Aggregated community experiences, protocols, and stacking patterns

Anecdotal Reports0

Community-Sourced Information

The protocols and reports on this page are gathered from online communities and forums. They represent anecdotal experiences, not clinical evidence. Individual results vary significantly. This information is not medical advice and should not replace consultation with a qualified healthcare provider. Always verify dosing and safety information with peer-reviewed research before making any decisions.

For peer-reviewed dosing protocols, see the clinical dosing guide.

Browse community protocols for all 130 peptides →

✓Reviewed byEditorial Team

📅Updated February 16, 2026

Unverified

📌TL;DR

•Community protocols detailed below
•Evidence level: Anecdotal Reports
•See community reports below
•Stacking patterns detailed below

Sources

Reddit r/tressless|Hair loss treatment pipeline discussions including PP405(accessed 2026-02-16)
Reddit r/Peptides|Hair follicle stem cell activation peptide discussions(accessed 2026-02-16)

Community Evidence Overview#

This page documents the community evidence landscape for PP405. This is not clinical evidence and should not be used as medical guidance.

PP405 has no community self-experimenter data. It is an investigational topical compound in Phase 2 clinical trials for hair loss.

Why There Is No Community Data#

Pre-Market Investigational Status#

PP405 is in Phase 2 clinical development by Pelage Pharmaceuticals, with Phase 3 trials planned for 2026. The compound is only available to patients enrolled in clinical trials.

Proprietary Formulation#

PP405's specific chemical identity and formulation have not been publicly disclosed, making independent synthesis or compounding impossible. The topical delivery system is also proprietary.

Hair Loss Community Interest#

While there is no self-experimenter data for PP405 itself, the hair loss community (particularly r/tressless on Reddit) closely follows the treatment pipeline. PP405's Phase 2a results showing 31% of men with advanced hair loss achieving greater than 20% increase in hair density at 8 weeks (vs 0% placebo) have generated notable interest, particularly because:

It works through a novel non-hormonal mechanism
It is applied topically with no systemic absorption detected
It may work in both men and women
Rapid onset (8 weeks) compared to months for existing treatments
It targets dormant follicle stem cells, potentially addressing a different aspect of hair loss than current treatments

PP405 Research & Clinical Studies
PP405 Molecular Profile
GHK-Cu - Copper peptide with hair and skin applications

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Medical Disclaimer

This website is for educational and informational purposes only. The information provided is not intended to diagnose, treat, cure, or prevent any disease. Always consult with a qualified healthcare professional before using any peptide or supplement.

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