Steroids are widely distributed in the biosphere of a large class of cyclopentylated polyhydrogenated phenanthrene derivatives. It includes cholesterol, rumen sterols, sitosterol, stigmasterol, ergosterol, bile acids and bile alcohols.

The hormones form include adrenocorticotropic hormone, androgen, estrogen, insect ecdysone, Cardiac glycosides and saponins and toad poison, etc.

Steroid compounds are free of bound fatty acids and are non-saponified lipids. These compounds are isoprenoid and are produced by triterpene cyclization and by molecular internal recombination and chemical modification.

If you want the best quality testosterone series, trenbolone series, or Nandrolone series, contact Rongxin BioChem.

Hong Kong Rongxin Biotech Co., Ltd. would provide you with high quality, high purity  Steroids,Fast Shipping,And Best Services.

Contact information:

E-mail:[email protected]

Skype:[email protected]

Whatsapp:+86-18789401944