7 Best Erectile Dysfunction Supplements to Improve Erection Quality Naturally

Erection problems are one of those “silent health hazards” that are rapidly increasing all around the globe, especially in countries where obesity, poor nutrition quality, and lack of exercise are key “attributes” of the population.

Changes are that if you have problems with erection strength all the time or occasionally, and you go to a doctor for help, you’ll likely leave with a prescription erectile dysfunction supplement to Cialis or Viagra. While both of them do work extremely well, they are also:

• Ridiculously expensive.
• Synthetic prescription pharmaceuticals with a host of side-effects.
• Not going to address the original root of the problem, (low T, poor vascular function, etc).

Like so many of the modern-day pharmaceutical erectile dysfunction supplements, they’re just a mean to mask the real problem with a “robotic erection”. There’s nothing natural in needing a drug for getting your battle-sword up. What if you forgot the prescribed magic-pill somewhere for example? And what happens when you have poked with the assist of a blue-pill for years, then develop side-effects and have to discontinue the use? Let me give you a hint: nothing good (at least that is if you haven’t focused on fixing the root issues of your problem).

Now while I would recommend that you start from fixing certain health and lifestyle factors (sleep, exercise, weight-loss, etc) before jumping head-first into using erectile dysfunction supplements. There are 7 (yes, seven!) natural supplements for erectile dysfunction that are alternatives to synthetic pharmaceuticals, and all of these are proven to work with multiple scientific studies. Use them strategically while also doing these things to optimize your overall hormonal and vascular health and I can guarantee you that you’re not going to need any pharmaceutical aids after that.

1. Ginseng

Ginseng has been titled as the “natural Viagra” due to its impressive results in multiple scientific trials, and while I can guarantee you that ginseng is nowhere near as potent as synthetic Viagra is, the benefit is that it’s all natural, costs just a fraction of the price, and actually works unlike many other natural erectile dysfunction supplements out there.

The roots of ginseng are best known as “adaptogens,” a blanket term coined by the scientist in Soviet Russia for identifying compounds that can promote the body to adapt into stressful situations and maintain the bodily homeostasis naturally by balancing stress and steroid hormones. The theorized reasoning for these effects is often claimed to be the high amount of phytonutrients (mainly ginesonides) and antioxidants found in the roots.

While the evidence on ginseng’s ability to increase testosterone levels is mixed (raising the hormone on infertile men¹, but not on men with no infertility²), the research behind its erection promoting effects is stronger than a steel pipe.

In a Korean double-blind placebo study³, 900mg’s of ginseng taken 3 times per day for 8-weeks was able to significantly improve erectile quality of subjects with clinically diagnosed erectile dysfunction. These effects were noted by a questionnaire, as well as RigiScan measurement (yes, that’s an actual device that measures erection quality…) Another study conducted five years later found similar results with 1000mg of ginseng taken 3 times per day, across the board patients receiving the ginseng had noticeably improved their quality of erection rigidity, maintenance, and penetration efficacy².

In a research-study of ginseng saponin’s it was also noted that ginseng has the ability to significantly improve erection quality when compared to a placebo solution. This time the researchers used another erection strength monitoring device called “AVS-penogram”⁴.

The underlying mechanism of ginseng’s actions is not fully understood, but its likely a combination of multiple compounds (saponins, antioxidants, ginsenosides). What has been seen in animal studies is that many of the ginesonides have the ability to raise nitric oxide levels in the blood, and thus widen the blood vessels and improve circulation.

The Best type of ginseng supplement to look for would be the authentic Korean Red Ginseng Extract (affiliate link).

2. Pycnogenol

Pycnogenol is a patented water-extract of the bark of the French maritime pine tree. It’s standardized to contain 65-75% procyanidin, which is a compound known to stimulate nitric oxide synthesis and therefore greatly increase vascular health and blood flow…

…And that is the mechanism of how pycnogenol works as an erectile dysfunction supplement. It is used to improve erection strength and the promotion of arterial relaxation with a boost in nitric oxide.

40mg’s of pycnogenol was used alongside with 1700mg’s of arginine and aspartic acid in a Bulgarian trial. The study had 40 subjects suffering from clinically evaluated erectile dysfunction, and they took the combination of these supplements for erectile dysfunction, 3 times per day (so 120mg’s of pycnogenol). Three months into the study, 92,5% of the test subjects reported that their ability to regain erections had returned⁵. In 2003, another group of researchers replicated the study with similar results using 120mg’s pycnogenol with 21 subjects⁶.

In 2007, 180mg’s of pycnogenol was found to increase arterial expansion of young male subjects by a staggering 42%⁷. Another trial noted that in patients with coronary artery disease, pycnogenol is a potent compound for greatly improving vascular health and blood flow⁸.

Since pycnogenol is so well-documented to promote vascular health and blood flow, using 100mg/day of quality supplement (affiliate link) would be an effective remedy against ED and to improve overall circulatory health.

3. Garlic Extract + Vitamin C

Both garlic and vitamin C have been studied for their effects in promoting blood flow, reducing inflammation, and dropping blood-pressure. In fact, garlic is often more potent at relieving high blood-pressure than pharmaceutical solutions⁹.

The thing that many people don’t know, is that when you combine vitamin C with garlic extract, you can expect massive improvements in your circulation due to elevated nitric oxide production.

This effect was seen in a study concluded by Mousa et al¹⁰. when they administered 2 grams of vitamin C in combination with 4 capsules of garlic extract  daily for 10-days to their patients with mild hypertension (high blood-pressure).

They saw the following improvements;

1. Endolethial nitric oxide output increased by a staggering 200% (that’s 3-fold increase!).
2. On average systolic blood pressure dropped from 142 to 115.
3. On average diastolic blood pressure dropped from 92 to 77.

For this very reason we decided to add 300mg’s of garlic extract, along with 1 gram of vitamin C to one capsule of RedWood (affiliate link), which is taken twice per day, resulting in 2 grams of vitamin C and 600mg’s of garlic extract.

4. Citrulline or Arginine

Arginine is an amino acid that acts as a precursor to nitric oxide, citrulline on the other hand is also an amino acid (found in watermelons for example), which naturally converts to arginine in the kidneys.

For these reasons both are generously used in pre-workout supplements to increase “pump” of the muscles and improve blood flow.

The science behind these compounds is pretty solid, they both seem to very reliably increase nitric oxide output. However, for some reason citrulline seems to be more potent at this¹¹. Maybe your body converts it into a more potent form of arginine than that of which can be found in arginine supplements, who knows.

I have for years recommended a powder which contains 5 potent ingredients for increased circulation; arginine, citrulline, Coenzyme Q10, resveratrol, and pomegranate extract (affiliate link).

Whatever the case, arginine works, but citrulline is just better.

5. Horse Chestnut Extract

Horse Chestnut Extract (HSE) is often standardized to 10-20% of the active ingredient escin, which has been found to be extremely beneficial for vascular health.

The mechanism at which horse chestnut extract improves erection quality is two-fold. Firstly its able to increase nitric oxide levels, and secondly it improves the function of the “vascular valves” and thus prevents and relieves the formation of varicoceles (half-blocked veins with poor valve function leading to testicles and thus impairing testosterone production).

The latter mechanism of HSE is particularly interesting due to the fact that roughly 20% of men have varicose veins in their testicles, sometimes noticeable, but often so mild that they go unnoticed. These veins can be surgically operated, but so far escin (the active compound in horse chest nuts) has been identified as the only compound that has proven research backing up its use as a natural varicocele treatment.

There are three studies which all found that standardized escin is able to significantly “resolve” varicose veins all around the body^12–14, and most importantly one which showed that escin derived from HSE was able to reduce the rate of varicoceles and thus improve the sperm counts and testosterone levels of infertile patients¹⁵. One study has also experimentally varicocele’d rodents just to find out that standardized escin can reverse the negative effects¹⁶.

We included horse chest nut extract in RedWood (affiliate link)…

…simply because we feel that improving the valve function and reducing the rate of varicoceles can bring massive improvements to the erection quality of many men who are not aware of the fact that they might have varicose veins, plus it also increases NO production so it was a no-brainer anyway.

6. Grape Seed Extract

Grape seeds are often extracted to get a standardized amount of the active ingredient; procyanidin. It’s the same nitric oxide stimulating compound that can be found in pycnogenol.

Aside from increasing nitric oxide, grape seed extract (GSE) has been found to inhibit the activity of aromatase enzyme, which is an enzyme that converts testosterone molecules into estrogen.

The mechanism of action in grape seed extract makes it a great erectile dysfunction supplement as it can benefit erectile health by boosting nitric oxide and preserving testosterone.

The research behind GSE is interesting. In rats for example, 100mg/kg has been able to increase nitric oxide levels by 125% at rest and 138% after exercise¹⁷. Human studies consistently show how GSE increases NO-production and thus reduces blood-pressure, leg swelling, heart rate, and cardiovascular disease risk^18–20 .

Because of its clinically proven use to improve nitric oxide output, I recommend this bulk GSE powder (affiliate link).

7. Icariin

Icariin is the active ingredient found in a herb called horny goat weed (epimedium). There’s research showing that it can act similarly to a testosterone mimetic in the body while also increase nitric oxide output and serving as a PDE-inhibitor.

Since icariin is a PDE-inhibitor, one could compare it to Viagra, due to the fact that the mechanism at which sidenafil (the active ingredient in Viagra) works is also PDE-inhibition.

I’m sad to say that when compared to its synthetic relative, icariin is not nearly as potent, but again, it’s natural and a significantly cheaper alternative.

The research shows that when male rats are administered 80mg/kg of icariin, their testosterone levels increase 3-fold²¹, and this occurs without significant changes in LH or FSH, suggesting that icariin has a direct testicular effect on testosterone production.

When icariin was tested in cell-cultures²², the researchers noted that it was able to inhibit the PDE5 enzymes, thus many supplement manufacturers have started selling it as an aphrodisiac or under the name of “natural Viagra”, again though, icariin is not as potent as the blue-pill.

Some other studies have found that icariin can increase the nerve growth and circulation of the pelvic region²³, significantly increase nitric oxide output²⁴, and blunt the rise in stress-hormone cortisol²⁵.

I doubt icariin has even remotely comparable effects to Viagra, unless you also make sure that you optimize your lifestyle, body composition, and diet towards healthier erections. If your problems are due to performance anxiety, the stress-reducing effects of icariin might be particularly useful.

Icariin might be an useful addition to your erectile dysfunction supplement arsenal (affiliate link).

Conclusion on The Best Supplements for Erectile Dysfunction

There you go, 7 compounds with science backing up their use as great supplements for erectile dysfunction.

None of the compounds alone might not be as effective as Viagra or Cialis, but heck, at least you’re not poking around with a robotic erection…

…And when used in combination, you surely will benefit, pre-existing problems or not.

NOTE: Don’t forget to check out the 9 erection quality boosting foods article.

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Ali Kuoppala

Ali Kuoppala is the founder of Anabolic Men, Author, and an Independent Researcher that has been credited with organizing the findings that have helped thousands of men reach hormonal balance. All of his work is fact-checked and reviewed by a team of medical professionals and nutrition experts.

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