FINAFLEX introduces the most effective DSHEA compliant pro-hormone ever to be released to the bodybuilding industry. Chemists at FINAFLEX have spent over 9 months engineering and perfecting the most bioavailable form of a precursor to nandrolone (19norTestosterone). Redefine Nutrition proudly introduces “3b-enanthoxy-19-nor-androst-4-ene-17-one.“ This new compound is a two step precursor to 19nortestosteron. This conversion can easily take place in the body as follows…
3b-enanthoxy-19-nor-androst-4-ene-17-one → 19norandrostenediol → 19norTestosterone
This new novel compound is comprised of lipophilic ester (enanthate ester bond) at the 3-key position to not only to increase the stability of the compound, but also to increase the purity. Both the purity and the identity of this new compound were verified multiple times by third party testing facilities by using LC/MS and GC/MS. The problem with other precursors to nandrolone like 19norDHEA, is two folds. The main issue is during the final stage of the production process of regular 19norDHEA, the purity of the compound is compromised due to the instability of the compound. Because 19norDHEA is very unstable during the final stage of reaction, some of the material in the reactor will be converted to other isomer and other unknown impurities. The second issue with regular 19norDHEA is the delivery system. Regular 19norDHEA has a very short half life, which results in poor bioavailability. Chemists at Redefine Nutrition have overcome both of these issues with this new compound, which maximizes both the purity to 99.9% and the bioavailability of the compound.
Main highlights of 3b-enanthoxy-19-nor-androst-4-ene-17-one mimics the benefits of nandrolone or 19nortestosterone. The term “19nor” means that a methyl group was removed from testosterone at a key position on its molecular backbone. This slight alteration of the chemical structure drastically reduces the DHT related side effects (prostate issues, balding, zits) as well as the estrogenic side effects (gyno, man boobs, chesticles) that testosterone possesses. Benefits of 3b-enanthoxy-19-nor-androst-4-ene-17-one include the following:
· Lean muscle growth
· Appetite stimulation
· Increased red blood cell production
· Bone density
· Joint relief
In addition to ”3b-enanthoxy-19-nor-androst-4-ene-17-one”, FINAFLEX 550xd Black contains a complete matrix of an anabolic amplifier which contains both bergamottin and naringin to optimize and enhance the absorption of the main ingredient.

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