RU-58841
Topical Androgen Receptor Antagonist
Non-steroidal anti-androgen researched for scalp-localized androgen-receptor blockade in hair-follicle models. Available in 30 mL and 60 mL bottles.
Anti-Aging & Longevity
Category
From $71.99
Price
Research
Grade
Price
From $71.99
✓ 10% off via PeptidesMuscle
Suggested Protocol
Published and community-reported research cadences typically apply 0.5–1mL of ~5% solution to dry scalp once daily, allowing full absorption before rinsing. This is a topical-only research compound — systemic exposure is not the design intent and should be avoided. Cycling and endpoint photography are standard in replication studies.
RU-58841 is a topical nonsteroidal antiandrogen originally developed by Roussel-Uclaf in the early 1990s. It is a small molecule, not a peptide, and its research interest sits almost entirely in scalp-localised androgen-receptor blockade for androgenetic alopecia models. The defining design goal was to achieve local AR inhibition at the hair follicle while being rapidly metabolised in circulation, so that systemic AR effects — which limit oral antiandrogens like bicalutamide for this use — would not accumulate.
Research Target
Topical Androgen Receptor Antagonist
Non-steroidal anti-androgen researched for scalp-localized androgen-receptor blockade in hair-follicle models. Available in 30 mL and 60 mL bottles.
Specifications
| Product | RU-58841 |
|---|---|
| Category | Anti-Aging & Longevity |
| Format | Lyophilized powder |
| Price | From $71.99 |
Study Outcomes
Topical nonsteroidal androgen-receptor antagonist
Roussel-Uclaf early-1990s medicinal chemistry lineage
Designed for rapid systemic clearance, local scalp action
Competitive AR binding comparable to hydroxyflutamide
Rodent and stumptail macaque hair-regrowth dataset
30mL pre-mixed format matches ~1-month scalp-application cadence
Standard Protocol
Published and community-reported research cadences typically apply 0.5–1mL of ~5% solution to dry scalp once daily, allowing full absorption before rinsing. This is a topical-only research compound — systemic exposure is not the design intent and should be avoided. Cycling and endpoint photography are standard in replication studies.
Complementary Compounds
Ready to start?
From $71.99
✓ 10% off via PeptidesMuscle
RU-58841 — FAQs
Other Anti-Aging & Longevity Peptides
View All
MOTS-c
16-residue peptide encoded by the 12S rRNA region of mitochondrial DNA. Studied for metabolic homeostasis and exercise-response modulation. Available in 10, 20, and 40 mg sizes.
NAD+
Cofactor for sirtuin and PARP enzymes implicated in DNA-repair and metabolic longevity programs. Available in 500 mg and 1000 mg sizes.
Melanotan I 10mg
Melanotan I 10mg — afamelanotide, the more MC1R-selective α-MSH analog developed at the University of Arizona, pharmacologically distinct from Melanotan II and clinically approved (Scenesse, 2019) for erythropoietic protoporphyria.
