Bodybuilding Steroids Mesterolone 99% Proviron CAS 1424-00-6 for Muscle Growth.

1. Quick Detail:

Mesterolone-Best Antiestrogen Proviron

Alias: Proviron

Manufacturer: HKYC

Storage: Shading, confined preservation

Appearance: white crystalloid powder, soluble in acetone, ethanol, ethyl ether, ethyl acetate,

insoluble in water.

2. Applications:

A. Mesterolone is an orally applicable androgen and dihydrotestosterone (DHT) derivative. It was used

with some success in controlled studies of men suffering from various forms of depression.

B. Mesterolone is a relatively weak androgen and rarely used for replacement therapies.

C. Mesterolone widespread use in bodybuilding primarily for antiestrogenic activity in anabolic steroid

stacks but such use has declined after introduction of aromatase inhibitors and SERMs.

3. Specifications:

Product name	Mesterolone Factory Supplying
Other name	Proviron
CAS register number	1424-00-6
EINECS	215-836-3
Molecular formula	C20H32O2
Molecular weight	304.47
Skype	eric15719
Melting point	204°C
Assay	99%

4. Product Description:

Proviron is helpful in stacks because of its unique ability to keep the body from turning testosterone in

to estrogen, thus giving the testosterone a better anabolic effect. This aids the bodybuilder in many

ways. First, it helps reduce estrogenic side effects of other steroids water-retention, lowered sex drive,

gynocomastia, etc. Also, Proviron can help boost the potency of testosterone in the body by freeing

testosterone from its binding to sex hormone-binding globulin (SHBG).

Proviron is therefore best stacked with testosterone, which makes taking anti-estrogen compounds

unnecessary. However, Proviron can cause high blood pressure so blood pressure medication may be

required for those prone to clinical situations Proviron is generally used to treat

various types of sexual dysfunction, which often result from a low endogenous testosterone level. It

can usually reverse problems of sexual disinterest and impotency, and is sometimes used to increase

the sperm count. The drug does not stimulate the body to produce testosterone, but is simply an oral

androgen substitute that is used to compensate for a lack of the natural male androgen.

Proviron is also an alteration commonly used with oral anabolic/androgenic steroids. Not using this

structure in the case of Proviron removes the notable risk of liver toxicity we normally associate with

oral drugs. It is therefore considered a " safe" oral, the user having no need to worry about serious

complications with use. This steroid in fact utilizes the same 1-methylation we see present on

Primobolan (methenolone), another well tolerated orally active compound. Alkylation at the one

position also slows metabolism of the steroid during the first pass, although much less profoundly

than 17 alpha alkylation. Likewise Proviron and Primobolan are resistant enough to breakdown to

allow therapeutically beneficial blood levels to be achieved, although the overall bioavailability of

these compounds is still much lower than methylated oral steroids.

5. COA :

COA:

Product name	Mesterolone
Appearance	White crystalline powder
Assay	97.0~103.0%	98.30%
Melting Point	203~208°C	203.1~204.7°C
Loss On Drying	0.5%max	0.33%
Specific Rotation	+15°~ +20°	+17.5°
Residue On Ignition	0.2%max	0.09%
Selenium(as Se)	30PPm max	< 30PPm
Related Substances	2.0%max	0.80%