Great post above by
@Resolve10 with a link to the thread.
Natural Testosterone Booster & Libido Enhancer Ultra-Potent Anacyclus Pyrethrum Extract Anacyclus Pyrethrum has a history in Ayurvedic medicine as a fertility herb and brain tonic and has commonly been used as a natural testosterone booster and to support increases in libido, sexual health...
anabolicminds.com
There are many different standardizations of Anacyclus available, so not all studies would apply to all types. We use the same Anacyclus in Anacyclus XT that was in the original AnaBeta, so the feedback is the same on those products.
It's important on Anacyclus, and many herbs, to look for feedback related to the type you want to try.
Example - there are lower grade Anacyclus materials available that we could sell a product for around what Anacyclus XT costs to make.