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RU58841 Solution

Topical RU58841 5% · 50 ml

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.

4.8(12 Reviews)
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Blocks DHT at follicle receptors

Localized androgen support

Topical and non-steroidal

>99% purity verified

“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!”

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Description

A 5% topical RU58841 solution designed for localized androgen-receptor support. RU58841 binds to androgen receptors around the follicle, helping limit the DHT signaling associated with follicle miniaturization.

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.

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 912 of 12

Verified customer

Getting back

Back from a long summer vacation. I’m back on the Ru + minox premixed solution. It’s looking great already. I’ll be posting pictures at the end of the year

Karl T.Quebec, Canada
Verified customer

Phenomenal!

Made my hairline thicker than ever, even seen new growth!

Wajjih S.New South Wales, Australia
Verified customer

Great product

TikTok

Will T.Seneley Green, St Helens, United Kingdom
Verified customer

Massaging is key

I've been using this for a little over a year now. It works great, part your hair, massage it in the scalp. Move the skin, not the hair around while rubbing in for better absorption. Trust the process.

Charles S.Murrells Inlet, US-SC
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.

After treatment
Before treatment
BeforeAfter

Crown coverage · Day 1 to Day 190

More customer results

1 / 8
Before treatment
After treatment
Crown density · Consistent angle
Before treatment
After treatment
Frontal hairline · Visible progression
Before treatment
After treatment
Overall density · Top view
Before treatment
After treatment
Crown coverage · Customer progress
Before treatment
After treatment
Top density · Customer progress
Before treatment
After treatment
Hairline · May 2024 to February 2025
Before treatment
After treatment
Overall density · Six months
Before treatment
After treatment
Crown · Six months

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

01

Blocks receptor access

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

02

Helps protect the follicle

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

03

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

RU58841 Solution

Topical RU58841 5% · 50 ml

Formula detail

03

clearly identified components

RU58841 is sold for cosmetic or research use and is not FDA approved for treating hair loss. Individual results vary.

See it for yourself

Real journeys, real results.

Watch how everyday customers rebuilt their hairline and their confidence with a consistent Hair Rescue routine.

Cleanse

Clean, dry scalp before applying RU58841 Solution

Start with a clean, completely dry scalp.

Apply

Applying RU58841 Solution to thinning areas

Distribute 1–1.5 ml across thinning areas once daily.

Massage

Massaging RU58841 Solution into the scalp

Work it in gently, let it absorb, and do not rinse.

RU58841 Solution: Specifications

CONCENTRATION
RU-58841 5% (50 mg/ml)
COMPOSITION
70% Ethanol · 25% Propylene Glycol · 5% RU58841
RU-58841 CAS
154992-24-2
MOLAR MASS
369.34 g/mol
MOLECULAR FORMULA
C₁₇H₁₈F₃N₃O₃
PURITY
RU-58841 >99% (Janoshik verified)
STORAGE
Cool, dry place · minimize open-air exposure
Complete the routine

Designed to work together.

Advanced Hair Growth Oil

Daily Care

Advanced Hair Growth Oil

Daily nourishment for a healthier scalp and stronger-looking hair.