Brief introduction
Testosterone is a steroid hormone from the androgen group and is found in humans and other vertebrates. In humans and other mammals, testosterone is secreted primarily by the testicles of males and, to a lesser extent, the ovaries of females. Small amounts are also secreted by the adrenal glands. It is the principal male sex hormone and an anabolic steroid.
In men, testosterone plays a key role in the development of male reproductive tissues such as the testis and prostate as well as promoting secondary sexual characteristics such as increased muscle, bone mass, and the growth of body hair. In addition, testosterone is essential for health and well-being as well as the prevention of osteoporosis.
On average, in adult males, levels of testosterone are about 7-8 times as great as in adult females. As the metabolic consumption of testosterone in males is greater, the daily production is about 20 times greater in men. Females are also more sensitive to the hormone. Testosterone is observed in most vertebrates. Fish make a slightly different form called 11-ketotestosterone.Its counterpart in insects is ecdysone. These ubiquitous steroids suggest that sex hormones have an ancient evolutionary history
Chemical name: 4-Androsten-17β-ol-3-one
Synonyms:17beta-Hydroxyandrost-4-en-3-one
CAS: 58-22-0
EINECS: 200-370-5
Assay: 98% min.
Molecular formula: C19H28O2
Moleculare structure:
Packing: foil bag or tin.
Appearance: white or off-white crystalline powder
Usage: Pharmaceutical material, Steroid hormone, Anabolin. For disease-free testosterone replacement therapy, male menopause, impotence and other diseases treatment.
standard:enterprise standard
Competitive Advantages:
Professional raw powder factory in China, all powders are factory directly supplying. Have over 10 years’ honour.
We exported to all over the world such as Germany, Norway, Poland, Finland, Spain, UK, France, Russia, USA, Australia, Japan, Korea and so on, over 100kgs each month.
Most of powders are in stock, Chargeable samples are available, Could be shipped out within 24hours.
Our products and services will focus on the largest customer demand,We hold the greatest enthusiasm and sincere cooperation with each customer.
A discount would be given when you make a large order.
Quick detail:
- Delivery: Parcels would be arranged within 12 hours upon receipt your payment.
- Packing: Steroids powders would be packed discreetly enough to cross customs
worldwide safely. Packing like traditional chinese food, washing and bathing items and other
equipments, etc...
- Extra service: Photos of of package would be provided for you to tell apart the steroids.
Tracking number would be offered once it is released.
- After-sale service: Any questions after you got the parcel, please contact us for the first time. Problems would be solved for you immediately.