Changsha Zhenxiang Biotechnology Co., Ltd.

Factory Directly Supply Raw Steroid Powder, Steroid Injection, Peptides and Sarms

About Us
Factory Tour
Quality Control
Contact Us
Request A Quote
Home ProductsAnti Estrogen Steroids

Mesterolone Anabolic Androgen Steroids CAS 1424-00-6 Proviron C20H32O2

Good quality SARMs Steroids for sales
Good quality SARMs Steroids for sales
I have already tested all the compounds, and they all tested outstanding. So thanks again for all you done and I will be getting with you the next tim

—— Paul-UK

Dear, thank you for your fast sending of the product requested, everything is fine, the package, excellent, thanks again for you very valuable service

—— Jesus-USA

Good day dear. im take it.quality is best! Thank you so much!!!!

—— Alex-Kazahkstan

Received today. Thank you Lisa top company.

—— David-UK

I'm Online Chat Now

Mesterolone Anabolic Androgen Steroids CAS 1424-00-6 Proviron C20H32O2

China Mesterolone Anabolic Androgen Steroids CAS 1424-00-6 Proviron C20H32O2 supplier

Large Image :  Mesterolone Anabolic Androgen Steroids CAS 1424-00-6 Proviron C20H32O2

Product Details:

Place of Origin: CHINA
Brand Name: Zhenxiang
Certification: HSE, ISO 9001, USP, BP
Model Number: 1424-00-6

Payment & Shipping Terms:

Minimum Order Quantity: Negotiable
Price: Negotiable
Packaging Details: Specials
Delivery Time: Within 8 hours after payment is confirmed
Payment Terms: T/T, Western Union, Money Gram, Bitcoin
Supply Ability: 500kg/month
Detailed Product Description
CAS: 1424-00-6 Mol. Mass: 304.4716
Formula: C20H32O2 Effective Dose: 25-200mgs/day
Active Life: Up To 12 Hours Detection Time: 5-6weeks

Mesterolone Anabolic Androgen Steroids CAS 1424-00-6 Proviron C20H32O2


Quick Detail

Mesterolone CAS 1424-00-6
Mesterolone MF C20H32O2
Mesterolone MW 304.47
Mesterolone EINECS 215-836-3


1 alpha-methyl-17 beta-hydroxy-5 alpha-androstan-3-one
Chemical Structure: 1 alpha-methyl-17 beta-hydroxy-5 alpha-androstan-3-one
Effective Dose: 25-50 mg/day
Molecular Weight: 304.4716
Molecular Formula: C20H32O2
Mesterolone CAS: 1424-00-6
Melting Point: N/A
Release Date: 1960
Effective Dose: 25-200mgs/day
Active Life: up to 12 hours
Detection Time: 5-6weeks
Androgenic: Anabolic Ratio:30-40/100-150

Proviron References:
Relative binding affinity of anabolic-androgenic steroids: comparison of the binding to the androgen receptors in skeletal muscle and in prostate, as well as to sex hormone-binding globulin.

Proviron (mesterolone) is basically an orally active DHT (Dihydrotestosterone) preparation. For comparision, we can think of some other orally prepared DHT compounds like Winstrol, Anavar, etc. Those both act very similarly in mechanism to Proviron, but a more accurate way to think of this compound is as something like "Oral Masteron." As I'm sure you noticed, their anabolic/androgenic ratio is very similar.Remember, DHT is 3 to 4 times as androgenic as testosterone and is, of course, incapable of forming estrogen. Also, Proviron is quite unique in that a simple look at its 4-ring structure will show us that it is not going to be too liver toxic, since it is not c17-Alpha-Alkylated, as many orals are and this modification (lacking in Proviron) makes drugs more liver toxic. Proviron has a 1-metyhl group added, instead.


Proviron can be an extremely useful help to steroid users in general and to bodybuilders in particular, but one has to know it well as this really is a double edged sword. The active compound in Proviron is called mesterolone, which is in fact a 1-methylated DHT (dihydrotestosterone). DHT itself is a strongly androgenic compound into which part of testosterone in the body (whether naturally produced or synthetic) is always converted. Proviron doesn't aromatize (and the same is true regarding DHT) but still shows great affinity for aromatase enzyme, thus hindering conversion of other steroids to estrogen. As such, it can be stacked with aromatizing anabolic steroids. Mesterolone is a very strong androgen, and the most important effects (and side-effects) of this drug are androgenic.



Oral Androgen Mesterolone
Proviron is the brand name for the oral androgen mesterolone (1 methyl-dihydrotestosterone). Just as with DHT, the activity of Proviron is that of a strong androgen which does not aromatize into estrogen.

In clinical situations Proviron is generally used to treat various types of sexual dysfunction, which often result from a low endogenous testosterone level. Proviron can usually reverse problems of sexual disinterest and impotency, and it is sometimes used to increase the sperm count. Proviron does not stimulate the body to produce testosterone, but mesterolone is simply an oral androgen substitute that is used to compensate for a lack of the natural male androgen. Although mesterolone is strongly androgenic, the anabolic effect of Proviron is considered too weak for muscle building purposes.

Proviron is a synthetic, orally effective androgen which does not have any anabolic characteristics. Proviron is used in school medicine to ease or cure disturbances caused by a deficiency of male sex hormones. Many athletes, for this reason, often use Proviron at the end of a steroid treatment in order to increase the reduced testosterone production. Proviron only reduces or completely eliminates the dysfunctions caused by the testosterone deficiency.


These are in particular impotence which is mostly caused by an androgen deficiency that can occur after the discontinuance of steroids, and infertility which manifests itself in a reduced sperm count and a reduced sperm quality. Proviron is therefore taken during a steroid administration or after discontinuing the use of the steroids, to eliminate a possible impotency or a reduced sexual interest. This, however does not contribute to the maintainance of strength and muscle mass after the treatment.


With Proviron the athlete obtains more muscle hardness since the androgen level is increased and the estrogen concentration remains low. This, in particular, is noted positively during the preparation for a competition when used in combination with a diet.


Female athletes who naturally have a higher estrogen level often supplement their steroid intake with Proviron resulting in an increased muscle hardness.



Mesterone with Increasing Popularity amongst Bodybuilders
The typical dosage for men is one to four 25 mg per tablets per day. This is a sufficient amount to prevent gynecomastia, the drug is often used throughout the entire cycle. It is often combined with Nolvadex (tamoxifen citrate) or Clomid (clomiphene citrate) when heavily estrogenic steroids are being taken (Dianabol, testosterone etc.). Administering 50mg of Proviron and 20mg Nolvadex daily has proven extremely effective in such instances, and it is quite uncommon for higher dosages to be required. And just as we discussed for women, the androgenic nature of this compound is greatly welcome during contest preparation.


Here again Proviron should noticeably benefit the hardness and density of the muscle, while at the same time increasing the tendency to burn off a greater amount of body fat. Proviron is usually well tolerated and side effects (men) are rare with dosages under 100 mg per day. Above this, one may develop an excessively high androgen level and encounter some problems.

Typical androgenic side effects include oily skin, acne, body/facial hair growth and exacerbation of a male pattern baldness condition, and may occur even with the use of a moderate dosage. With the strong effect DHT has on the reproductive system, androgenic actions may also include an extreme heightening of male libido. And Women should be careful around Proviron. It is an androgen, and as such has the potential to produce virilization symptoms quite readily. This includes, of course, a deepening of the voice, menstrual irregularities, changes in skin texture and clitoral enlargement.


The popularity of Proviron amongst bodybuilders has been increasing in recent years. Many experienced bodybuilders have in fact come to swear by it, incorporating it effectively in most markedly estrogenic cycles.


Proviron is also excellent for contest preparation because it adds density and definition. Many people use Proviron in between cycles to maintain gains and libido.


Obtain More Muscle Hardness With Proviron
Mesterolone is a synthetic androgen and a dihydrotestosterone derivative.
Mesterolone is rarely used for replaceme nt therapies due to its weak androgenic activity.

Mesterolone Anabolic Androgen Steroids CAS 1424-00-6 Proviron C20H32O2



Contact Details
Changsha Zhenxiang Biotechnology Co., Ltd.

Contact Person: Candice

Tel: +8618038176817

Send your inquiry directly to us (0 / 3000)