3,6,17-androstenetrione
A naturally-occurring androgen metabolite that functions as an aromatase inhibitor. Taken in supplemental form, 3,6,17-androstenetrione can increase serum testosterone by reducing its conversion to estrogen. It’s been used as a part of post-cycle therapy to help restore normal testosterone levels, as well as a standalone supplement for enhancing testosterone.
3,6,17-androstenetrione is sold commercially as “6-OXO” by ErgoPharm. Other synonyms include: 4-etioallocholen-3,6, 17-trione, 6-ketoandrostenedione and androst-4-ene-3,6,17-trione
Aspidosperma Quebracho-Blanco
A South American tree and source of “Quebracho” – a traditional herbal remedy for erectile dysfunction. Quebracho is an alternate source of yohimbine, although it’s unclear if other compounds are present that could contribute to its reputed effects.
White Willow Bark
See Salicin.
Salix alba
See Salicin.
Salicin
A natural anti-inflammatory compound derived from white willow bark (Salix alba). Salicin is chemically similar to aspirin, and has a similar action.
White willow bark extracts standardized for salicin were typically added to ephedra-based fat burners designed to be “all natural” versions of the well-known “ECA” stack (ephedrine, caffeine, aspririn – see Paul’s Xenadrine RFA review for one example). Theoretically, aspirin/salicin works synergistically with ephedrine/caffeine to enhance lipolysis, but there is less research to back this up (and the “EC” stack is quite effective without it).
Salicin-containing extracts are also added to “ephedra-free” fat burners, but there is no evidence it provides any benefits.
