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RU58841 Solution

Topical RU58841 5% · 50 ml

4.8(13 Reviews)

Blocks DHT at follicle receptors

Localized androgen support

Topical and non-steroidal

>99% purity verified

View verified Janoshik lab result

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“About 90 days in and seeing great results. The response time for questions as well as the shipping time have both been great. Will order again!”

1 Bottle$59.99 each · 1-month supply$59.99MOST POPULAR3 Bottles$53.33 each · 3-month supply$159.99Save $20BEST VALUE5 Bottles$48.00 each · 5-month supply$239.99Save $60

Subscribe & Save 5%Delivers every 3 months · cancel anytime$151.99One-time purchase$159.99

Description

A focused 5% topical RU58841 solution designed to bind to androgen receptors around the hair follicle and help limit the local DHT signaling associated with follicle miniaturization.

RU58841 · A powerful anti-androgen

Competes strongly against DHT, the main cause of androgen-related hair loss.
Supports cellular replication in the hair matrix.
Supports hair diameter, density, and the percentage of follicles in the anagen phase.
Has shown growth outcomes comparable to or better than finasteride in preclinical research.
Designed for localized topical use rather than systemic hormone suppression.

RU58841 is a research chemical and is not FDA-approved for treating hair loss. Individual results vary.

Does this contain Minoxidil?

No. This formula contains RU58841 5% and does not contain minoxidil. Hair Rescue Serum is the separate dual-active option containing both RU58841 5% and Minoxidil 5%.

How to Use

Apply 1 to 1.5 ml across thinning areas once daily. Massage gently into a clean, dry scalp and allow it to absorb. Do not layer it with Hair Rescue Serum.

Can I use it with Hair Rescue Serum?

Choose one topical treatment rather than layering both. The Serum already contains RU58841; the Solution is the minoxidil-free alternative.

Safety and storage

RU58841 is sold for cosmetic or research use and is not FDA approved for treating hair loss. Store in a cool, dry place, minimize open-air exposure, and consult a qualified healthcare professional before use.

How do I manage or cancel my subscription?

Open hairrescue.shop/account and log in with the email from checkout. Shopify emails a one-time code — no password. After signing in, choose Subscriptions to skip, pause, update, or cancel in Kaching without emailing us.

Authentic customer reviews

What customers are saying.

Every review below is collected through Fera and belongs to this product. Browse the complete review history without leaving the page.

Customer reviews

Showing 1–8 of 13

Verified customer

Stick with it. This product works.

I have tried almost everything except oral medications for my hair loss. Unfortunately my friends and family didn’t tell me I was losing it until it was pretty bad and my mentor spoke up I’ve done rosemary, pumpkin oil, topical ghk-cu and all of the natural remedies. I have continued taking my everyday vitamins and herbal supplements like saw palmetto. I derma stamp every 1-2 weeks and use Hair Rescue every day except after a stamping session. Initially I began topical minoxidil foam last December 2025 and hair rescue in March 2026. Seeing serious gains the after photo was taken July 2026. Currently I’m about to cut my hair and grow it for winter. Will update with any more improvements.

Verified customer

Terrific!

Seems to be working, I've ordered a few times now and plan on continuing

Decent.

The solution work hands down but I’m getting some serious side effects I started with the highest dose now close to 25ml n the way it has me feeling every night is forcing me to stop. Headaches & shortness of breath throat irritation. Theres something not sitting well with me about this compound. Unfortunately I have to stop.

Verified customer

Excellent!

Works great!

Verified customer

You should get this!

Very nice

Verified customer

Marvelous!

Verified customer

Awesome!

About 90 days in and seeing great results. The response time for questions as well a the shipping time have both been great. Will order again!

Verified customer

Solid!

It seems to be working. I have faster length growth and some slightly better density. Im going to give it 3 more months. I did have an area I lost since using it but it could be just my alopecia type thinning.. My brows and moustache are denser whhere I put a small amount on because small fine hairs are griwing thicker and longer. iIs ts been 6 months. It does cause more neck hair to grow.

Real transformations

Before & after.

Drag the slider to see the difference consistent use makes. Progress is gradual — most people notice a real change between months three and six.

BeforeAfter

Crown coverage · Day 1 to Day 190

More customer results

1 / 13

Before and after customer result: Hairline and crown · Customer progress — Hairline and crown · Customer progress

Before and after customer result: Crown density · Three-month progress — Crown density · Three-month progress

Customer-submitted progress photos are shown for illustrative purposes. Results are not guaranteed and vary from person to person; Hair Rescue is sold for research/cosmetic use and is not FDA approved.

Three RU58841 Solution bottles with the correct RU58841-only labels

Localized androgen-receptor support

What exactly is RU58841?

RU58841 is a non-steroidal androgen-receptor antagonist designed for topical use. It binds to androgen receptors around the hair follicle, helping prevent DHT and other androgens from attaching and driving the signaling associated with follicle miniaturization.

Product distinction

Topical RU58841 5% · 50 ml

Product-specific mechanism

How RU58841 Solution works

Blocks receptor access

RU58841 competes for the androgen receptors that DHT and other androgens would otherwise attach to around the follicle.

Helps protect the follicle

Limiting that local androgen signal helps interrupt the process associated with progressive follicle miniaturization.

Acts where it is applied

The topical format is designed to focus androgen-receptor support directly on thinning areas as part of a consistent daily routine.

Formula

A precise RU-only formula

RU58841 · 5%

The formula’s only active ingredient, supplied at 50 mg/ml.

Ethanol · 70%

The primary carrier in the topical solution.

Propylene Glycol · 25%

Supports even topical distribution and contact with the scalp.

What is in this bottle

The label, formula, and supporting content all match this specific product.

Product profile