Biotest Rez-V is the new supplement from Biotest.
Reasearch has recently found a compound called resveratrol found in the skin
of red grapes (and subsequently red wine) peanuts, and a few other natural sources,
may have significant health benefits for humans. It is anti-bacterial, anti-fungal
and has shown to have significant beneficial health effects, such as anti-cancer,
antiviral, neuroprotective, anti-aging, anti-inflammatory and life-prolonging
effects have been reported, although some of these studies used animal subjects
Later studies showed that resveratrol prolongs the lifespan of the worm Caenorhabditis
elegans and the fruit fly Drosophila melanogaster. In 2006, it also extended
the maximum lifespan of a short-lived fish, Nothobranchius furzeri, by 59%,
and extended its median lifespan by 56%. Also noted were an increase in swimming
performance, an increase in cognitive performance (learning tasks), and a lack
of neurofibrillary degeneration (found in a control group).
Some Information taken from Biotests T-Nation website reads as follows :-
When we increase Testosterone, some of it changes to estrogen or, more specifically,
estradiol, in a process called aromatization that takes place mostly in fatty
tissues and yes, muscle.
Unfortunately, estrogen does things to us that we don't like. Estrogen can
cause an increase in body fat, a reduction of muscle mass, and even a decrease
in strength, not to mention making you want to cry at the end of every episode
of Grey's Anatomy.
It can even cause one of the most embarrassing conditions known to man: gynecomastia,
or male breasts..
To make things worse, increased levels of estradiol can then enter the bloodstream
and travel to the pituitary and signal it to stop producing the hormone that
prompts the testicles to produce Testosterone.
Estrogen tries to keep Testosterone levels from going higher.
Furthermore, a lot of us believe that estrogen plays more of a role in promoting
prostate cancer than the other Testosterone metabolite that generally gets most
of the blame, DHT.
If only our body's own production of estrogen were the only problem! Unfortunately,
modern man is besieged by chemicals in the environment that mimic estrogen.
These phony estrogens, known as xenoestrogens, exist in plastic bowls and bottles,
air fresheners, pesticides, even toothpaste. They're literally all over the
place and far too many find their way into your body every single day.
These xenoestrogens can have negative effects on the immune system, mucking
up memory, behavior, and even the ability to learn, not to mention the effects
caused by regular run-of-the-mill estrogen that I mentioned above.
While there are plenty of substances that combat estrogen, it's a tricky business.
The thing is, men need some estrogen to maintain the health of blood vessels.
Too little estrogen and the things get all brittle and inelastic. Not good.
So how do you manage estrogen so that you're able to keep Testosterone levels
optimally high, body fat low, and strength high while still maintaining blood
There's a substance in nature that's been the subject of a whole
lot of worldwide research lately. It's called resveratrol and it's a polyphenol
found in such foods as peanuts, grapes (and consequently, wine), and mulberries.
Resveratrol has a whole lot of good things going for it, but the one we're
most interested in has to do with estrogen. You see, resveratrol acts as a potent
estrogen antagonist (while also acting as an agonist in some tissues, similar
to the drugs clomiphene and tamoxifen).
In higher concentrations, it acts as an aromatase inhibitor. That means that
it stops the body from whittling away at your Testosterone.
This is cool because if a substance stops Testosterone from being converted
to estrogen or estradiol, it not only prevents the nasty effects of estrogen
(loss of muscle and strength and accrual of body fat), but it increases your
level of Testosterone, leading to additional strength and muscle!
What's equally important is that it won't cause your Testicles to go on vacation,
i.e. shrink. The testicles don't get a signal from the pituitary to shut down
because estrogen has been curtailed!
There's a lot of good data in animal models to back this up. Studies have demonstrated
a resveratrol-fueled increase in Luteinizing Hormone and Follicle Stimulating
Hormone (the pituitary hormones that signal the testicles to start producing
Testosterone) that's 2.7 times greater than placebo.
Additionally, resveratrol caused a 76% increase in sperm count, all of this
without any adverse effects.
The aromatase inhibition is thought to occur through two mechanisms: reducing
the expression of aromatase, as well as binding to the enzyme and preventing
it from doing its dirty work.
And, unlike conventional aromatase inhibitors, resveratrol doesn't cause a
decline in endothelial (blood vessel) function. In fact, it seems to improve
And remember those nasty xenoestrogens I mentioned earlier? Resveratrol seems
to occupy the receptor sites, or biological "parking lots," so that
these xenoestrogens can't "park" in their spots. That's good.