|
Review Summary
(See Review Criteria for Detailed
Explanation)
| Review Criteria |
Vipra |
Zenerx |
| Safe Effective
Ingredients |
|
|
| Shilajit |
No |
Yes |
| Honey Goat Weed |
Yes |
Yes |
| Muira Puama |
Yes |
Yes |
| Maca Root |
Yes |
No |
| Allium Sativum |
No |
Yes |
| Mucuna Pruriens |
No |
Yes |
| Tribulus Terrestris |
Yes |
Yes |
| |
|
|
| Contains Non-herbal
Additives |
No |
No |
| |
|
|
| Overall Male Health Support
Ingredients |
Moderate |
Significant |
| |
|
|
| Dangerous Ingredients |
|
|
| Yohimbe |
Yes |
No |
| |
|
|
| Other Factors |
|
|
| Product Guarantee |
Yes |
Yes |
| Made in the US |
Yes |
Yes |
| Known FDA Complaints or Recalls |
No |
No |
| Filed Better Business Bureau
Complaints (filed/satisfactory resolution) |
0 |
0 |
| Potential Misleading Claims |
Some |
No |
|
|
|
| Price Per Bottle |
$39.99 |
49.95 or 29.95 |
|
|
|
| Overall Score of 15 (1, .5, 0) |
10.0 |
14.0 |
Recommendations (See Review Criteria For Details)
Vipra: Not Recommended
- Primary Reason, Contains Potentially Dangerous Ingredient on FDA Warning
List.
Zenerx:
Recommended -
Click
Here For Product Information
Review Criteria
Safe Effective Herbal Ingredients
We only included ingredients in our review
where we found multiple scientific studies vs. anecdotal evidence that support
it's positive effect on the various functions that are important to produce
a strong full erection, increase libido and treat impotence issues. This is not to say that other
herbs
are not effect, only that we have scientific research backing the ones
listed.
Most of the formulations on the market today
work by addressing several areas of the male body that effect a mans
erection ability, sex drive and health. The effectiveness of each
formulation will vary depending on it's specific ingredients.
Shilajit (Viagra effect)
The anti-stress and adjuvant effects have
been
evaluated in a number of India studies. Shilajit is found to provide an anti-oxidant
defense against several reactive oxygen types. Processed Shilajit provided
complete protection to methacrylate against hydroxyl radical induced
polymerization and acted as a reversible nitric oxide-captodative agent.
These findings are consistent with the therapeutic uses of Shilajit as an
Ayurvedic (rejuvenator) against oxidative stress and geriatric complaints
of erectile dysfunction.
Horny Goat Weed (Viagra effect)
Horny goat weed
has been used for for over 2000 years as an sexual and reproductive tonic.
It's acts in multiple ways to increase erection ability, size, and fullness.
Horny goat
weed contains a prominent flavonoid called icariin.
Icariin is a cGMP-specific PDE5 inhibitor like Viagra, Cialis and Levitra.
This was demonstrated in a 1984 University of Peking study.
Also it
functions like an adaptogen by increasing levels of epinephrine,
norepinephrine, serotonin, and dopamine when they are low - promoting
energy, but reduces cortisol levels when they are elevated (an
anti-stress effect). High stress conditions, increase cortisol levels
causing fatigue and depressing sex drive.
Finally,
horny goat weed
can restore low levels of both testosterone and thyroid hormone back to
normal - improving sex drive.
Muira Puama
This South American herb has been used for
centuries to treat a weak libido and erectile dysfunction. Two recent French
studies supported it's effect treating impotence.
In one study, men treated with muira puama
extract 62% reported that it had a dynamic effect on their libido and 51%
with erectile dysfunction said that it was beneficial.
In a second study, muira puama extract was
given to 100 men with sexual asthenia. 85% of the men reported an increase
in libido and 90% reported an increased ability to maintain an erection.
Allium Sativum - Garlic (Viagra effect)
Yes, Good old garlic. In two different 1998
studies one from the National University of Mexico and another from the Institute of
Pharmacology, Toxicology and Pharmacy, Munich, Germany show garlic to
"activate nitric oxide synthase" or enhance the nervous systems
ability to react to nitric oxide.
Also there are multiple studies compiled at
the Sloan-Kettering Cancer Institute which demonstrate Garlic’s assistance
in both preventing and having curative effects on several medical conditions which
are often the cause of ED. These include high blood pressure, heart disease,
hypertension and atherosclerosis.
Mucuna Pruriens
Mucuna Pruriens works as a prolactin
inhibitor, a growth hormone stimulant and to increase testosterone.
A U.S. patent was filed in 2002 on the use of
mucuna pruriens to stimulate the release of growth hormone in humans. The
high levels of l-dopa in the mucuna seed are converted to dopamine which
stimulates the release of growth hormone by the pituitary gland. L-dopa and
dopamine are effective prolactin inhibitors
Increased levels of prolactin are considered
responsible for 70% of erection failure in males. In one study, oral intake
of the seeds in 56 human males was able to improve erection, duration of
coitus, and post-coital satisfaction after only four weeks of treatment. It
also has alsopromots spermatogenic effects in men, improving
sperm count and motility.
Tribulus Terrestris
Tribulus is a natural testosterone
enhancer. It is also said to be an excellent circulatory system tonic and can
help build muscles and strength.
Clinical studies on the sexual activity-enhancing effect
of tribulus have shown the herb
to contain protodioscin, a saponin constituent, improving libido
in men with impotence due to various causes; libido in women with menopausal
symptoms; and sperm motility in infertile and subfertile men.
In another study involving 59 men, ages
22-67, suffering from a range of sexual dysfunctions. An increase of sexual
desire and fantasies, as well as sexual self-confidence, were reported in
almost all of the patients. The subjective experience of pleasure, joy and
satisfaction was reported in 80% of the men; erection improved in over 75%
of the men; and the duration of intercourse before ejaculation was
prolonged in 25% of the men.
Ashwagandha
Here is what the Sloan-Kettering Cancer
Center had to say in their Ashwagandha Clinical Summary.
"It (Ashwagandha) is also used as a general
tonic, to increase energy and improve health and longevity...
Ashwagandha has been shown to exhibit antioxidant effects in the brain and
to have a tranquilizing effect on the central nervous system in animals...
Human study's suggest Ashwagandha may promote growth in children and improve
hemoglobin concentration, red blood cell count and sexual performance in
adults."
Contains Non-Herbal Ingredients
Zenerx does not contain other additives.
Vipra contains the following other
additives: Thymus Gland - Niacin - Zinc Gluconate - Copper Gluconate
Herbal Ingredients That Support Overall Male Health
and Prevent/Help ED Causing Conditions
There are multiple causes of weak & small
erections, impotence and low sex drive which may range from mild (low sex drive, weak
erections, lack of energy, slow and weak ejaculation) to severe (total
inability to achieve erection and complete lack of sexual desire).
These include:
- Cardiovascular (i.e.
restricted blood flow, high blood pressure, heart disease, hypertension and
atherosclerosis)
- Renal or urological
- Nutritional
(i.e. malnutrition, vitamin or mineral deficiency)
- Endocrine (i.e. low testosterone or high prolactin)
- Neurological
- Muscular & Tissue
- Psychological (i.e. stress,
anxiety, etc.)
By increasing your health in the above areas
you are often able resolve sexual dysfunction issues. This is perhaps where
the greatest benefit that natural herbal supplements provide to a mans total
sexual performance.
Minimal -
Ingredients provide primarily support for an erection, but limited benefits
in other important areas.
Moderate - Ingredients provide some
additional benefits to the other ED related conditions and overall health.
Significant
- Ingredients provide significant preventative/help benefits for other ED causing
conditions and overall male health.
Potentially Dangerous Ingredients
We reviewed the ingredients in each of the supplements and
cross checked the ingredients against ingredients identified by the FDA as
"Supplement Ingredients With Concerns" The one common ingredient
on this list is
Yohimbe it is considered dangerous and it is an ingredient in a number
of male enhancement/impotence products on the market.
| Source: FDA
"Illnesses and Injuries Associated With the Use of Selected Dietary
Supplements"
Yohimbe (Pausinystalia yohimbe)
Yohimbe is a tree bark containing a variety of pharmacologically active
chemicals. It is marketed in a number of products for body building and "enchanced
male performance." Serious adverse effects, including renal failure,
seizures and death, have been reported to FDA with products containing
yohimbe and are currently under investigation.
The major identified alkaloid in yohimbe is yohimbine, a chemical that
causes vasodilation, thereby lowering blood pressure. Yohimbine is also a
prescription drug in the United States. Side effects are well recognized and
may include central nervous system stimulation that causes anxiety attacks.
At high doses, yohimbine is a monoamine oxidase (MAO) inhibitor. MAO
inhibitors can cause serious adverse effects when taken concomitantly
with tyramine-containing foods (e.g., liver, cheeses, red wine) or with
over-the-counter (OTC) products containing phenylpropanolamine, such as
nasal decongestants and diet aids. Individuals taking yohimbe should be
warned to rigorously avoid these foods and OTC products because of the
increased likelihood of adverse effects.
Yohimbe should also be avoided by individuals with hypotension (low blood
pressure), diabetes, and heart, liver or kidney disease. Symptoms of
overdosage include weakness and nervous stimulation followed by
paralysis, fatigue, stomach disorders, and ultimately death. |
Our recommendation is to avoid any product containing
Yohimbe. There are many other alternative ingredients that have proven
effective and are safe. If you are considering using such a product only
use it after consulting your doctor and under their strict supervision.
Zenerx does not contain Yohimbe or any other
"Ingredients of Concern"
In our review we found,
Vipra
Contains Yohimbe, all other ingredients are considered safe.
However because it contains Yohimbe we do not recommend it's use.
Other Factors
Product Guarantee
It is important that any manufacturer stand
behind their product with a money back guarantee. The fact is each individual
is different. Some formulations may work better than others for an
individual their condition that may be cause impotence, small or weak
erections. That's why a 100% guarantee is a must and the manufacturer must
follows through with the guarantee.
Both Vipra and Zenerx Guarantee their
products.
Made in The US
By purchasing only from companies that only
manufacture their product in the US you can help insure that the ingredients are as
labeled. Most of the supplements that have had other substances added (such
as sildenafil citrate) have been manufactured outside of the US by
unscrupulous companies.
Check to make sure that the supplement is manufactured in
the US and not just a US company that imports their product from abroad.
The Vinarol recall is a recent example of this occurring.
Both products are manufactured in the US
Known FDA Complaints or Recall for the Specific Product
We checked to see if there are any known
product complaints or
recalls registered with the FDA for each of the products reviewed.
Known Better Business Bureau Complaints
We check with the Better Business to
determine if there are any complaints and the resolution of the complaints.
Vipra had no complaints filed with the
Better Business Bureau.
Zenerx had no complaints filed with the
Better Business Bureau.
Potential Misleading Claims
Because we do expect companies to shine a
positive light on their product, we try to give they the benefit of the doubt on
subjective information. Because every individual is different results of any
herbal supplement or pharmaceutical will vary. That's why in our review we
focus on the proven ingredients. However if a claim is made that is clearly mis-leading
based on other factual evidence it is graded as a potentially mis-leading
statement.
Vipra makes a strong safety claims when
medical evidence supports the potential danger of Yohimbe. Yohimbe is not recommended by
doctors who are skilled in alternative and complementary medicine and can be
toxic.
| "Yohimbe is not recommended because it
has a very narrow therapeutic index. There is a relatively small dosing
range, below it the herb doesn’t work and above it the herb is toxic.
Side effects of normal dosages include dizziness, anxiety, hyperstimulation, and nausea. As little as 40 mg a day can cause a
severe drop in blood pressure, abdominal pain, fatigue, hallucinations,
and paralysis." Source: Natural Treatments for Erectile Dysfunction,
Cathy Wong, N.D. |
Recommendations
While all both products include a variety of ingredients
that have been shown to be effective to increase erection ability, size,
firmness and help impotence.
* Vipra
contains potentially dangerous Yohimbe (which is on the FDA's Warning list),
this automatically excludes from our recommended safe products buy list. We
do recommend Zenerx.
* Vipra's "Trust Factor" is lower
because of the safety claims regarding yohimbe use which is mis-leading
based on medical evidence. Also they lack of any warning that yohimbe is a
M.A.O. inhibitor and can cause serious side effects with cheese, wine, nasal
decongestants or diet aids.
We did not find any such issues with Zenerx.
Vipra: Not Recommended
- Primary Reason, Contains Potentially Dangerous Ingredient on FDA Warning
List.
Zenerx:
Recommended -
Click
Here For Product Information
What product would you liked
reviewed. Let use know at reviews@enhancement-review.info
Giovanni Magnotti
GM@enhancement-review.info
|
