What is Epimedium
extract?
Epimedium extract, according to Wikipedia, has many other
names, such as Horny Goat Weed, Yin Yang huo, Rowdy Lamb Herb, Bishop's Hat,
Barrenwort, Fairy Wings, etc. Many people may take icariin or icariins for
epimedium extract. Make sure that icariin is the main active ingredient in
epimedium plant. The current epimedium extract is dominantly standardized for
icariin only. Spec ranges from1% to 98% hplc. If you are not sure about the
differences between icariin and icariins, you may send inquiry to us for help.
Of course, we can manufacture the epimedium extract according to your specific
requirement.
Species of Epimedium
extract available in China
The Epimedium species have been used extensively in
Traditional Chinese Medicine for their warming or “Yang” tonic effect, which
shows great therapeutic properties for the kidney, enhances the immune system,
and increases sperm production, thereby acting sexual enhancement. Up to date,
over 60 species of Epimedium have been reported, but only five of these are
recorded in the Chinese Pharmacopeia, namely, Epimedium bravicornum Maxim.,
Epimedium sagittatum Maxim., Epimedium koreanum Nakai, Epimedium pubescens
Maxim. and Epimedium wushanense T.S. Ying.
Chemical constituents of Epimedium extract
There are many other ingredients in epimedium extract as
well, such as flavones, Quercetin, Ikarioside A and B (wanshanense),
Anhydroicaritin, Desmethylanhydroicaritin, Sagittatoside B , Diphylloside A and
B, etc. Flavonoids are the main active chemical constituents of Epimedium
species, the four major flavonoids contributing to their effects being
epimedins A, B, and C, and icariin. These biologically active constituents are
flavonol glycosides with an isoprenyl group substituted on carbon 8. However,
analysis of natural health products currently available on the market
containing Epimedium relys mostly on the presence of icariin. CPC established
characteristic Rapid Resolution Liquid Chromatography (RRLC) profiles for
complex mixtures of flavonoids from Epimedium species. The Zorbax Eclipse XDB
column is able to fully separate four major flavonoids, which are epimedins A,
B, and C, and icariin, for both quantitative and qualitative analysis in less
than 3 minutes.
How does Epimedium
extract work?
Research has shown that Epimedium extract can inhibit an
enzyme called acetylcholinesterase (AChE). AChE rapidly stops neurotransmission
at cholinergic synapses like those found in the brain and at neuromuscular
junctions, which are needed for speedy responses in the neuromuscular system.
By inhibiting AChE, Horny Goat Weed supports higher levels of the key
cholinergic neurotransmitters associated with sexual arousal.
Icariin, a component of epimedium extract, A potent
vasodilator with anabolic and anti-catabolic effects, works through several
different mechanisms:
1.by increasing nitric oxide (NO) through PDE5
inhibition,
2. by acting as a potent anti-catabolic agent that
increases the testosterone to cortisol ratio,
3.by increasing muscle contractility by deactivating AchE
(Acetycholinesterase),
4.by boosting endogenous testosterone levels through
increasing cAMP and luteinizing hormone and decreasing prolactin. It also is
considered a Phytochemical Selective Androgen Receptor Modulator or P-SARM. A
P-SARM is a phytochemical (plant-derived) compound that mimics the effects of
androgens on muscle mass, strength, bone growth, drive, and sexual function,
while at the same time not negatively effecting blood lipids or blood pressure.
As mentioned before, Icariin has potent anti-catabolic
effects, along with testosterone-mimicking and muscle-contraction-enhancing
benefits - several studies have shown that it actually competes with
glucocorticoids for receptor sites in a manner similar to testosterone, while
at the same time improving the testosterone to cortisol ratio. This is caused
by two different mechanisms of action: the aforementioned competition with
glucocorticoids, and also increased testosterone production, through increased
cAMP (cyclic AMP, a second messenger important in hormone signaling) levels,
luteininzing hormone (LH) levels, the actual mimicry of testosterone in
spermatogenesis, and decreased prolactin levels. Icariin seems to block
glucorticoids from binding to cortisol receptors, thus blocking the action of
cortisol. This alone will cause an anabolic effect by positively skewing the
T:C ratio, which is a trigger for greater protein synthesis, increased
aggression towards the iron, and insane muscle contractions
Epimedium extract is a 'tonic-type' herbal supplement,
not a stimulant. In other words, it takes a few doses to a week before you
start noticing its sexual enhancement effect.
Benefits of taking Epimedium
extract supplement:
Icariin is the active ingredient in Epimedium
extract (Horny Goat Weed). The benefits of epimedium have been shown in
research to increase circulating levels of testosterone and Nitric Oxide.
Icariin has also shown to have a positive influence on treating sexual
disfunction. The
key common benefits of epimedium extract are listed as below:
1. Improve sexual drive and testosterone level
Epimedium extract is mainly used in China, United States
and other western countries as an Aphrodisiac. It can cure Erectile dysfunction
(ED), enhance sexual performance by enhancing the testosterone level.
epimedium products have been used for centuries in
traditional Chinese medicine as a means to treat male sexual disorders.
Epimedium herbal supplements can be used to increase male sexual potency and
also serve as a powerful aphrodisiac, thus boosting the libido in men. Icariin
benefits are not limited to just boosting libido and sexual energy. Icariin is
also noted to increase lean muscle production to help men achieve a more
muscular physique. This mechanism is the reason why icariin is an active
ingredient of numerous supplements used by athletes and body builders. Icariin
helps produce healthy energy levels, supports endurance, and decreases the
physical effects of stress to the body.
2. Epimedium and Osteoporosis
Developing research shows that taking a specific extract
of horny goat weed for 24 months seems to decrease bone loss of the spine and
hip in women who have passed menopause. Epimedium as a supplement
features ingredients that can help manage cortisol levels within the blood. As
a result, a reduction of bone deterioration and an increase in muscle mass can
occur within the body since cortisol levels directly affect these body
structures.
3. Anti-Cancer For Many Cancers.
Epimedium extract offers significant benefits in treating
certain cancers. It contains active ingredients, which inhibit growth of too
much blood vessels in the body, thereby limiting the possible development of
cancer tumors both on skin and in the organs. Furthermore, lab tests show the
capability of epimedium extracts to stop cell growth of cancer cells
4. Memory Protection.
It looks like Icarrin can protect the brain from the
deadly tau proteins that are characteristic of Alzheimer's. Animal studies
strongly indicate that Icarrin can protect against certain kinds of memory
loss. That includes memory loss resulting from aluminum damage
SIDE EFFECTS AND CAUTIONs of taking Epimedium
extract
As of now, it is not known whether the use of the herb
epimedium is contradicted for any condition or there are any warnings regarding
the use of this herb. Nevertheless, excessive use of the herb, which is often
the prescribed dosage of this medication, may result in side effects, such as
increased thirst, dizziness, nausea and even nosebleed.
Dosage of Epimedium
extract
Since there are more than 10 popular specifications of
the epimedium extract, there is not unified dose. Higher dosage per serving
like 98% icariin of course will be much lower than the 10%. In addition,
different people and different purposes of taking epimedium may result in
different dosage. The appropriate dose of horny goat weed depends on several
factors such as the user's age, health, and several other conditions.
Because dietary supplements and foods are not required to seek approval from the
United States Food and Drug Administration (FDA), studies to find the safest
and most effective dosages for dietary supplements or foods are rarely
performed. Without such studies, only vague "trial and error"
information is typically available. Even if good dosing information were
available, there may be significant variability of the content, purity, and
strength among different brands of the same dietary supplement, making
consistently safe and effective dosing difficult.