Sports Technology Labs is the best place to buy RU-58841 powder online!

You can find RU-58841 on the internet, but not all varieties are created equal. If you are searching for SARMs powder for research purposes online, you need to choose a provider that prioritizes quality. 

Sports Technology Labs is dedicated to providing high-quality RU-58841 powder. Every batch we sell undergoes testing by a third-party American laboratory to verify a minimum of 98% purity. We also list COAs on our website, and our independent lab accepts phone calls to confirm their quality. 

When it comes to RU-58841 powder, there is no need to leave anything to chance. Sports Technology Labs is the best place to buy RU-58841 powder online because they will provide you with the highest quality product, fast shipping, and outstanding customer service. 

RU-58841

Each batch is packaged and tested in the USA to ensure accuracy and purity. Our Certificates of Analysis confirm that products meet the listed specifications:

• Date: 09/23/2025
• Purity Level: 99.31%

RU-58841 Mechanism of Action

Sometimes identified as PSK-3841 or HMR-3841, RU-58841 shares a similar chemical structure with RU-58642, another powerful antiandrogen known to obstruct the androgen receptor.

RU-58841 can be applied topically and might be a valuable remedy for acne, androgenetic alopecia, hirsutism, and other androgen-responsive skin disorders. RU-58841 should be stored at room temperature for optimal shelf life.

Clinical Effects of RU-58841

The compound is purported to encourage hair growth, and ongoing clinical trials are evaluating RU-58841 as a topical agent against alopecia. Common beliefs about its topical application suggest improvements in hair:

• Density
• Length
• Hair Diameter

Side Effects of RU-58841

Research on RU-58841 is actively progressing, and more studies may soon elucidate RU-58841’s potential advantages. While its topical application is presumed to result in fewer side effects compared to systemic treatments, the compound is still relatively new, and the full spectrum of possible side effects remains unknown.

Animal Data on RU-58841

To this point, in vivo studies on hamsters and rats have been employed to ascertain the safety and efficacy of RU-58841, yielding optimistic initial findings: In a unique experiment, scientists grafted scalp samples from males suffering from androgen-dependent alopecia onto nude female mice.

After maintaining the scalps for eight months post-grafting and monitoring them monthly for six months, the grafts treated with RU-58841 generated 29 active follicles. Remarkably, eight of these (or 28%) exhibited a second cycle. Additionally, the linear hair-growth rates (LHGR) in the RU-58841-treated group were elevated.

In another investigation, researchers synthesized RU-58841 and identified its strong affinity for hamster prostate and flank organ (F.O.) androgen receptors. When applied topically in vivo, RU-58841 induced a robust dose-dependent regression of the F.O. area, even at a minimal dose of 1 microgram per animal. Importantly, in intact rats, no adverse effects were noted at doses up to 1 microgram per animal.

Data on Our RU-58841 Powder for Sale

CAS Number: 154992-24-2

Formula: C17H18F3N3O3

Molar mass: 369.3 g/mol

Class: Androgen receptor antagonist

Storage: Store in a cool, dry place away from direct sunlight to maximize shelf life.

• Foil pouch with UV resistance to minimize degradation.
• Minimum 98% pure.
• 2,000 milligrams RU-58841 per pouch.
• Measuring tools not included.

SKU: 14

Abuse Warning

Selective androgen receptor modulators are investigational compounds still awaiting FDA approval and are not dietary supplements. At Sports Technology Labs, we are chemical suppliers, not medical doctors, and our expertise is sourcing and quality control. Sports Technology Labs does not encourage or condone consumer use of SARMs products; they are for research purposes only.

Anecdotal reports and guides may not match those used in carefully designed medical research protocols and may pose a serious risk of adverse effects in users. Individual variables, comorbidities, and polypharmacy can also contribute significantly to the risk of health problems.

Selective androgen receptor modulators should only be used under the supervision and direction of a medical doctor or designated research authority. We strongly discourage the use of SARMs for performance enhancement in sports and bodybuilding, and warn against “bro science” and peer consensus when making decisions about health.