Viasil Review: Ingredients, Evidence, Price & Safety

Posted on October 8, 2026 by Mark Alexander

Editorial Verdict: 48/100

Viasil has a plausible circulation-focused formula, but its current evidence and transparency do not justify the strength of its marketing claims. The official 2026 site lists horny goat weed, zinc, Citrus sinensis, ginkgo biloba, Tribulus terrestris, Panax ginseng, and pomegranate, but it does not publish current ingredient amounts on the main product page. An older Viasil information pack disclosed doses, yet we cannot assume those numbers still match every bottle sold today. We also found no peer-reviewed randomized trial of the finished Viasil formula.

Best for: someone specifically seeking a non-prescription daily sexual-wellness supplement and willing to accept uncertain product-level evidence.
Skip if: you need proven ED treatment, take blood-pressure or blood-thinning medication, or want a current label with fully published doses before buying.
Verdict: credible ingredient concepts, weak finished-product proof, aggressive claims, and incomplete current dose transparency.

See Our VigRX Plus Review

Viasil: Quick Facts

Product: daily male sexual-performance supplement.
Current manufacturer/seller: Health Nutrition Limited.
Current directions: one tablet daily.
Current listed ingredients: horny goat weed, zinc, Citrus sinensis, ginkgo biloba, Tribulus terrestris, Panax ginseng root extract, and pomegranate.
Current public dose disclosure: ingredient amounts are not shown on the main official product page we checked.
Current advertised price: $39.99 for a 1-month supply + 1 month free, but all listed bundles were marked out of stock when checked.
Guarantee: 100 days, with unused Viasil in original packaging eligible for return under the seller’s stated terms.
Affiliate relationship: Male Enhancement Report is not affiliated with Viasil. The red alternative buttons lead to our VigRX Plus review.

How We Scored Viasil

Criterion	Score	Why it scored there
Formula Transparency	60/100	The ingredient list is public, but current official ingredient amounts are not shown on the product page. Older dose data exist, but may not reflect the current bottle.
Finished-Product Evidence	35/100	We found research on individual ingredients, but no peer-reviewed randomized trial of the complete Viasil formula.
Claim Realism	30/100	The official site makes broad performance claims and calls Viasil “completely safe and side effect free,” which is stronger than the evidence supports.
Safety Confidence	65/100	The historical doses are generally moderate, but ginkgo, ginseng, horny goat weed, and other botanicals can interact with medications and affect blood pressure or bleeding risk.
Comparative Value	50/100	The advertised cost and 100-day guarantee are competitive, but current out-of-stock status and limited dose transparency reduce practical value.

Overall score: 48/100. This is the arithmetic average of five equally weighted editorial criteria. It measures the published formula, evidence, claim quality, safety context, and present value—not a hands-on product test.

What Is Viasil?

Viasil is marketed as a daily natural male-performance supplement designed to support sexual responsiveness, energy, stamina, confidence, and circulation. The current official site says the formula supports nitric-oxide pathways and ATP production while also reducing performance worry.

Those are broader wellness mechanisms rather than proof that the product treats erectile dysfunction. The site itself carries the standard supplement disclaimer that the product is not intended to diagnose, treat, cure, or prevent disease.

What Is in Viasil?

The current official page lists seven named components but does not show their quantities. An older Viasil information pack reported the following daily amounts:

Ingredient	Older published amount	Editorial assessment
Actiful (Citrus sinensis + pomegranate complex)	700 mg	The largest component in the older formula. Research around citrus flavonoids and pomegranate supports vascular mechanisms, but not Viasil-specific ED efficacy.
Horny goat weed extract	100 mg extract, equivalent to 1,000 mg herb	Icariin has mechanistic PDE5-related research, but human evidence for erectile dysfunction remains limited.
Tribulus terrestris extract	25 mg extract, equivalent to 300 mg herb	Recent meta-analysis suggests possible ED benefit, but positive trials generally use different standardized extracts and larger studied exposures.
Panax ginseng extract	20 mg extract, equivalent to 400 mg root	Human evidence is mixed; a Cochrane review found only low-certainty, clinically small effects on erectile function.
Ginkgo biloba extract	4.8 mg extract, equivalent to 240 mg leaf	Randomized trials for antidepressant-related sexual dysfunction have not shown a consistent advantage over placebo.
Zinc	1.5 mg	Zinc matters for normal androgen biology, particularly when deficient, but this is a small dose and is not evidence that Viasil raises testosterone in zinc-replete men.

Important: these quantities come from older Viasil materials. Because the current official page does not publish amounts, we treat them as historical reference values rather than confirmed 2026 label doses.

Does Viasil Work?

Viasil’s ingredient list is not irrational. Several components have human research related to sexual function or vascular biology. The issue is whether the current Viasil formula, at its current doses and in its particular combination, produces a meaningful clinical effect. We did not find a peer-reviewed randomized controlled trial answering that question.

Tribulus terrestris has become more interesting as evidence has developed. A 2026 systematic review and meta-analysis reported improved erectile-function scores versus placebo across randomized trials. But those studies did not test Viasil, and standardized Tribulus preparations in clinical trials have used materially different doses and compositions.

Panax ginseng also has clinical literature, but the overall picture is modest. A Cochrane review concluded that ginseng probably has only a trivial effect on erectile-function scores, with low-certainty evidence.

Ginkgo is less persuasive for male sexual dysfunction. A triple-blind placebo-controlled trial of 240 mg daily in antidepressant-related sexual dysfunction found no statistically significant benefit over placebo. A later systematic review likewise characterized the evidence as limited.

The Zinc and Testosterone Claim

Zinc is essential for normal reproductive and endocrine function, and a 2022 systematic review found that zinc deficiency can reduce testosterone and that supplementation can improve testosterone depending on baseline zinc status, dose, and duration.

That does not mean a small amount of zinc will meaningfully raise testosterone in every man. The older Viasil formula listed only 1.5 mg zinc, so broad hormone claims should be interpreted cautiously.

Safety and Side Effects

The current Viasil site says the product is “completely safe and side effect free.” We would not use that wording editorially. Natural ingredients can still cause adverse effects or interact with medications.

Ginkgo may increase bleeding risk in some circumstances and can interact with medications. Panax ginseng can interact with certain drugs and may affect sleep or blood sugar. Horny goat weed has pharmacologic activity that may matter for people with cardiovascular disease or blood-pressure issues. The seller itself advises people taking medication to consult a doctor before use.

Anyone with persistent erectile dysfunction should also consider medical assessment because ED can be associated with cardiovascular disease, diabetes, medication effects, hormone problems, and other treatable causes.

Price, Stock, and Guarantee

When checked on October 8, 2026, the official site advertised a 1-month supply plus one free for $39.99, a 2+2 free package for $79.98, and a 3+3 free package for $119.97. All three were marked out of stock.

The site advertises a 100-day money-back guarantee. Its FAQ states that unused Viasil in original packaging can be returned within 100 days of the order date. Buyers should read the current written return terms at checkout because promotional language and policy details can change.

Viasil vs VigRX Plus

Feature	Viasil	VigRX Plus
Current availability	Official site active, but current bundles were out of stock when checked	See our current review for availability
Current dose transparency	Ingredient names published; amounts not shown on main current page	See current label in our review
Finished-product evidence	No peer-reviewed RCT identified	See our review for product-specific research and limitations
Main formula emphasis	Circulation, energy, herbs, and Actiful fruit complex	Male sexual-performance supplement with a different ingredient profile
Editorial concern	Aggressive claims and incomplete current dose disclosure	Different evidence and value profile

We found no head-to-head randomized trial proving one product superior. For our assessment of the alternative, read the full VigRX Plus review.

Read Our VigRX Plus Review

Pros and Cons

Pros

Current official site and manufacturer information are easy to identify.
Uses several ingredients with at least some human or mechanistic research.
Advertised pricing is relatively competitive when bundles are available.
100-day money-back guarantee is longer than many supplement return windows.

Cons

No peer-reviewed randomized trial of the finished Viasil formula identified.
Current official page does not disclose ingredient amounts.
All listed bundles were out of stock when checked.
Claims such as “completely safe and side effect free” are too absolute.
Historical ingredient doses do not necessarily match doses used in positive clinical trials.

Final Verdict

Viasil earns 48/100. It has more substance than a random proprietary-blend supplement: its ingredient choices are biologically plausible and several have legitimate research behind them. But the finished product has not demonstrated its claims in a peer-reviewed randomized trial, the current public page does not disclose doses, and some of the marketing language goes beyond what the evidence can support. Until dose transparency and product-specific clinical evidence improve, we would treat Viasil as an unproven supplement rather than an evidence-based treatment for erectile dysfunction.

Frequently Asked Questions

Is Viasil still sold?

Yes, the official site is active in 2026, but all three listed bundles were marked out of stock when we checked on October 8.

What ingredients are in Viasil?

The current site lists horny goat weed, zinc, Citrus sinensis, ginkgo biloba, Tribulus terrestris, Panax ginseng, and pomegranate. The site does not currently show ingredient amounts on its main product page.

Is Viasil clinically proven?

Individual ingredients have human research, but we did not identify a peer-reviewed randomized controlled trial of the complete Viasil formula.

Does Viasil increase testosterone?

Zinc deficiency can lower testosterone and correcting a deficiency may help. That does not prove Viasil raises testosterone in men with normal zinc status, especially given the small zinc amount reported in older formula materials.

Is Viasil side-effect free?

No supplement can responsibly be assumed side-effect free for everyone. Several Viasil ingredients can cause adverse effects or interact with medication.

How long is the Viasil guarantee?

The current official site advertises a 100-day money-back guarantee for qualifying returns. Read the seller’s current written policy before purchase.

Our Review Methodology

We use five equally weighted criteria: formula transparency, finished-product evidence, claim realism, safety confidence, and comparative value. Research on individual ingredients does not count as a clinical trial of the finished supplement. We reviewed the current official Viasil site, older manufacturer/affiliate formula documentation, peer-reviewed research, and current pricing and return language. We did not test Viasil ourselves.

Fact-checked: October 8, 2026. Formula, stock status, pricing, and seller terms can change.