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Arimistane – Product Information

Arimistane is an aromatase inhibitor that has the potential to bring about a reduction in the production of estrogen. Studies show that Arimistane as an aromatase inhibitor effectively delays epiphyseal maturation in young subjects and improves testosterone levels in adult subjects by suppressing estrogen production.

PureRawz sells Arimistane for research purposes only.

CAS Number 1420-49-1
Molar Mass 284.17 g/mol
Chemical Formula C19H24O2
IUPAC Name (8R,9S,10R,13S,14S)-10,13-dimethyl-2,8,9,11,12,14,15,16-octahydro-1H-cyclopenta[a]phenanthrene-7,17-dione

What is Arimistane?

Arimistane or Androsta-3 5-diene-7 17-dione is an aromatase inhibitor. This compound is also an analog of DHEA, an androgenic hormone made by your adrenal glands. Arimistane also exists naturally in the body and was first discovered in human urine in 1971. [R]

Later on, in the early ’90s, Arimistane was synthesized and tested for its ability to inhibit aromatase in human placental microsomes. All the steroids used in the study, including Arimistane, inhibited the enzyme competitively, with Ki’s ranging from 0.058 to 45 micro mm. [R]

Do Aromatase Inhibitors Potentially Increase Testosterone?

Research has shown that lowering estrogen levels, by administering an aromatase inhibitor, causes an increase in luteinizing hormone (LH), follicle-stimulating hormone (FSH), and testosterone. Aromatase inhibitors have therefore been suggested as a tool to increase testosterone levels. [R]

Another study was conducted to investigate the effects of aromatase inhibition in elderly men with low or borderline-low serum testosterone levels. The study found that aromatase inhibition increases testosterone levels to the youthful normal range, in older men with mild hypogonadism. [R]

Research on Aromatase Inhibitors for Gynecomastia

Multiple case reports indicate that Aromatase inhibitors may be used to treat or prevent gynecomastia or the enlargement of breast tissue in men. Gynecomastia is triggered due to a decrease in the amount of testosterone vis-à-vis the aromatase enzyme. [R]

In one study, five boys with pubertal gynecomastia and breast tenderness were treated for 6 months with a specific aromatase inhibitor. Breast size decreased in 4 out of 5 patients, and in 1 of these 5 boys, glandular breast tissue disappeared completely. [R]

How Does Arimistane Work?

Arimistane has the potential to inhibit aromatase to increase testosterone levels. It does that by blocking estradiol, a form of the hormone estrogen. While it is identified with specific sex, both estradiol and testosterone are found in both women and men.

Arimistane vs Arimidex

Arimistane and Arimidex are both aromatase inhibitors.

Both work by potentially suppressing the production of estradiol, an enzyme that stimulates the production of estrogen. Both also increase testosterone levels. The duo does that by decreasing the amount of estrogen the body produces.

However, while Arimistane isn’t FDA-approved, Arimidex was FDA-approved in 1995. It is used to treat breast hormone receptor-positive receptors in early breast cancer in postmenopausal women. Arimidex is typically given as an adjuvant treatment after surgery has been administered.

Arimistane Research

Only one human study has been conducted on Arimistane to date. In the study, urine samples of three healthy volunteers were analyzed after a controlled single administration of Arimistane. No relevant effects on the steroid profile could be detected. [R]

Arimistane FAQs

Is Arimistane a prohormone?

Arimistane is not a base prohormone. Prohormones are naturally occurring compounds that convert to anabolic hormones via an enzymatic process. They are sometimes also referred to as “light steroids,” “suicide aromatase inhibitors,” or “weak hormones.”

Can Arimistane increase testosterone?

Health experts claim that Arimistane does increase testosterone levels in the body. In doing that, it becomes similar to aromatase inhibitors like Arimidex and Aromasin. [R]

Is Arimistane legal?

This estrogen blocker is banned by the World Anti-Doping Agency and is yet to be approved by the FDA. Therefore, it is illegal to buy, sell, and use Arimistane as a dietary supplement. However, it is legal to buy and sell PureRawz Arimistane for laboratory and research purposes.

Does Arimistane have any side effects?

No studies have been conducted on Arimistane to substantiate its side effects.

Does Arimistane increase muscle mass in subjects?

Studies investigating the potential effect of this anti-estrogen compound on muscle mass are lacking.

The use of aromatase inhibitors is associated with the maintenance of total body fat, an increase in lean body mass, and free testosterone in AI subjects at 24 months. The mechanisms and implications of these changes require further exploration. [R].

Do aromatase inhibitors prevent estrogen rebound?

According to the American Cancer Society, aromatase inhibitors don’t stop the ovaries from making estrogen. They only limit estrogen levels in female subjects whose ovaries aren’t making estrogen (such as postmenopausal women). [R]

Where to Buy Arimistane Online

PureRawz is the best place to buy online.

In order to be the best research chemicals supplier, we provide reference materials with every product we sell. Each of our products comes with an independent, third-party-issued Certificate of Analysis for identification, purity, and concentration.

We offer free shipping on all orders above $100. You can pay for your purchase through various methods, including PayPal and Bitcoin. Click on the ‘Reviews’ tab to check out what existing customers have to say about our products and great customer service.

This information is for educational purposes only and does not constitute medical advice. THE PRODUCTS DESCRIBED HEREIN ARE FOR LABORATORY AND RESEARCH USE ONLY. All clinical research must be conducted with oversight from the appropriate Institutional Review Board (IRB). All preclinical research must be conducted with oversight from the appropriate Institutional Animal Care and Use Committee (IACUC) following the guidelines of the Animal Welfare Act (AWA).
Our content is intended to be used and must be used for informational purposes only. It is very important to do your own analysis and research from Trusted Sources before making any purchase, based on your personal circumstances. You should independently research and verify any information that you find on our Website and wish to rely upon.
By completing and paying for your order, you agree to our Terms and Conditions. Customer satisfaction is our number one priority. If you are not 100% satisfied with the product you received, please contact us at [email protected]
ATTENTION: All our products are for LABORATORY AND RESEARCH PURPOSES ONLY, not for veterinary or human usage.


COA Arimistane 2023 11 16 PR 1 merged 1 1 COA Arimistane 2023 11 16 PR 1 merged 1 2

22 reviews for Arimistane

  1. User Avatar: Susan Laronee

    Susan Laronee

    Excellent customer service and quality products. Perfect combo!

  2. Roger

    Great! I’ve tried a few of your products and they are all showing satisfying results.

  3. Jerry Perez

    This is my favorite brand of Arimistane and I will always be a loyal customer to Purerawz. Thank you!

  4. Rick Jonas

    I just finished a TRT cycle and this has by far been the best product I have used to avoid any imbalance of estrogen.

  5. Pedro B. Kiely

    My endurance in the gym has improved ten fold. Feeling amazing and the results are now starting to show!

  6. Donald Perry

    This is by far my favorite product to help me lose weight and get my metabolism boosted.

  7. Javier

    I received my order today. This time was faster to get here.

  8. Anonymous

    Keeping my estrogen levels low, very happy with the results so far.

  9. Chris Harris

    I’m very satisfied with the results!

  10. Anonymous

    Great product.

  11. Danny Walsh

    I am very happy with the caps that I received, my weight loss has finally been where I want it to be.

  12. Maximillian Rosario

    Won’t get my Arimistane from anywhere else no more 😀

  13. Stanley

    I first had my doubts but after using this for a while it has had incredible results.

  14. Paul Hittermann

    Always a top-notch capsule! Been using it for almost a year and still the best for me.

  15. George Smith

    Great quality so far, 3 weeks in and I have been seeing some great results, very happy so far!

  16. Randall Newton

    Somehow this magically increased my productivity. I just love it!

  17. Verified Buyer (verified owner)

    Good for anti aging and test boosting. Cycle on and off. Have not experienced any long term side effects.

  18. Verified Buyer (verified owner)

  19. Wade D. (verified owner)

  20. Anonymous (verified owner)

    This is a must keep, I recommend this to everyone

  21. brent o. (verified owner)

  22. Robert alexander (verified owner)

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