Natural Testosterone Boosters on the Rise in 2025 – Discover the Top Picks and What to Watch Out For
First and foremost, we want to make it clear that we do not earn any commission from these recommendations. Our only goal is to share honest and helpful information to support as many men as possible in naturally preventing and treating erectile dysfunction — using supplements that actually deliver results.
Update on
Dr. Robert Wallace
Urologist specializing in erectile dysfunction treatments.
In this overview, I’ll reveal 5 of the most popular erectile dysfunction supplements being used by men in the U.S. in 2025. Each recommendation is carefully selected based on strict standards — including clinically studied ingredients, real-world user feedback, and a strong balance between effectiveness and overall value.
How to identify a good testosterone supplement and avoid ineffective formulas
Studies show that over 60% of men over the age of 40 — and nearly 80% of those over 60 — experience a decline in testosterone levels, which directly affects energy, strength, and vitality. This reality has driven a growing interest in supplements aimed at restoring those levels.
However, not all supplements are truly effective. With rising demand, some brands have launched products with minimal active ingredients or no real proof of efficacy, leading many men to fall for exaggerated marketing claims.
Our team carefully reviewed today’s most popular testosterone boosters, evaluating their safety, formula quality, and real-world results. After a thorough investigation, we identified which products truly deliver on their promises — and which fall short. Based on tests conducted with our own patients, we’ve gathered the key information you need to make an informed decision and invest in something that actually works.
Criteria We Use to Evaluate Supplements
To create this review, I evaluated each product based on the following key factors:
Active ingredients: I checked if the ingredients are clinically tested and safe.
Effectiveness: I looked at results reported by real users and scientific studies.
Value for money: I compared pricing and the benefits offered by each product.
Guarantees: I reviewed whether the manufacturer offers a money-back guarantee.
- Scientific Updates: I prioritized products that incorporate the latest scientific discoveries in their formulas. Science is constantly evolving, and it’s crucial to choose supplements that are based on up-to-date research.
Red Flags to Watch Out For
Lack of Full Clinical Studies:
Be cautious of brands that highlight the clinical benefits of individual ingredients without providing evidence for the effectiveness of the complete supplement. One of the strongest indicators of product quality is a placebo-controlled clinical trial, conducted by an independent third party, to assess both safety and overall effectiveness.
This level of scrutiny is especially important with supplements, as it allows for measurable improvements — whether in physical performance or cognitive function — to be properly evaluated. You demand this level of research for medications, so why not apply the same standard when choosing a supplement?
Unproven Ingredients:
The reality is that only a few natural ingredients have strong scientific backing for safely and effectively addressing erectile dysfunction. Yet, many products on the market feature lengthy ingredient lists filled with herbs and compounds that lack solid clinical evidence.
Be wary of supplements that overload their formulas just to appear comprehensive. More ingredients don’t always equal better results — or better health. In our review, we found some products with over 10 active ingredients, but the real question is: are they all truly necessary?
Prolong Power: the name everyone’s talking about in 2025 — but does it really live up to the hype?
Among the best-selling erectile dysfunction supplements in the U.S. in 2025 — including Prolong Power, Boostaro, Alpha Bites, Alpha Force, and Iron Pump — Prolong Power stands out as the most searched on Google. Given its popularity, we conducted clinical tests with our own patients. However, the results were mixed: while some reported mild improvements, others experienced minor side effects like heartburn and headaches.
Next, we evaluated Boostaro — and the results were noticeably better. Patients reported consistent improvements in erection strength and duration, a gradual increase in libido, and virtually no adverse effects. Its cleaner, more balanced formula may account for this difference. Of course, individual responses can vary, but current clinical data suggest that Boostaro offers a more effective, stable, and safer option.
The 5 Most Effective Testosterone-Boosting Supplements of 2025
After reviewing the five best-selling erectile dysfunction supplements in the U.S. over the past few months, we encountered bold promises and growing popularity around these products. However, as always, only rigorous clinical testing could reveal which ones truly deliver results.
We started with Prolong Power, the clear leader in online search traffic. Its formula, designed for fast-acting vasodilation, caught our attention, and some patients did report firmer erections within the first few weeks. On the downside, a significant number also experienced side effects such as mild heartburn and headaches, which lowered its overall score in terms of safety and tolerability.
Next, we tested Boostaro — and the results were impressive right from the start. All listed ingredients were confirmed to be active and present through lab testing, and patients experienced consistent improvements in sexual performance, blood flow, and overall energy. Most importantly, no common side effects like high blood pressure or headaches were reported, which is a major advantage.
Alpha Bites stood out for its unique gummy format — a great alternative for those who dislike capsules. Although it includes several interesting ingredients for hormonal support, the dosages of key actives fell short, which may limit its long-term effectiveness.
Alpha Force showed promising levels of L-arginine and other natural vasodilators. Some patients reported noticeable improvement in the first few weeks, but the effects tended to taper off after about 30 days — suggesting possible bodily adaptation.
Iron Pump received positive early feedback for increasing energy and overall vitality, especially among physically active men. However, a few users experienced mild insomnia and restlessness in the initial weeks, likely due to the highly stimulating nature of certain ingredients.
It’s important to note: our goal isn’t to promote or discredit any specific brand. We simply conducted thorough clinical evaluations to give you clear, unbiased information so you can make the most informed decision possible.
Based on all test results and clinical feedback, Boostaro stood out as the most balanced option in terms of effectiveness, safety, and added health benefits. Below, you’ll find our final rankings along with a detailed breakdown of each product — starting with our top recommendation and explaining exactly why it earned that position.
#1 BOOSTARO
4.8 / 5
TOTAL RANKING
A+
Overall Grade
Pros
- Contains must-have ingredients to optimize testosterone levels and enhance sexual performance.
- Molecular formula similar to others on the market without the side effects.
- Vegan, non-GMO, and gluten-free
- Made in the USA in an FDA Approved facility.
- After 40 days of daily use, study participants reported surprising results, including increased testosterone levels, size, and performance.
- Laboratory tests reveal 100% pure ingredients with no binders or fillers.
Cons
- Current stock is limited due to increased demand in recent months.
- Available online in the United States, but not currently sold in retail stores
We ranked Boostaro as our #1 choice because it was the only erectile dysfunction supplement that met all of our strict clinical standards — delivering real, lasting results by targeting the root cause of ED. Within just 40 days, participants in our study reported significant improvements. Boostaro quickly became a top-rated product among users for its ability to boost energy and enhance sexual performance, earning its place as one of the most promising natural solutions for erectile dysfunction.
So what sets Boostaro apart? It works at the root of the problem — the buildup of toxins in the interstitial cells of the testes, which are essential for testosterone production. These toxins — often from processed foods, pesticides, and plastics — disrupt hormone levels and damage blood vessels responsible for healthy penile circulation, leading to weak erections and low libido.
Research shows that removing these toxins can help restore healthy testosterone levels and improve blood flow, offering a real, lasting solution to erectile dysfunction.
👉 Visit the OFFICIAL WEBSITE now and see why Boostaro is our #1 pick for ED support in 2025.
#2 Prolong Power
3.9 / 5
TOTAL RANKING
B-
Overall Grade
Pros
- Contains 3 out of 5 must-have ingredients
- Vegan, non-GMO, and gluten-free
- Made in the USA
Cons
- Ingredients lacking strong clinical evidence
- Some users reported mild side effects such as nausea and headaches.
- ontains some ingredients with questionable efficacy and safety.
- The money-back guarantee was not honored as advertised
After 40 days of use, results with Prolong Power were mixed. While some users reported mild improvements in stamina, the majority experienced little to no noticeable change in erectile function. Several users also reported side effects, including elevated blood pressure, dizziness, and digestive discomfort.
Prolong Power contains ingredients traditionally linked to improved blood flow and testosterone support. However, emerging research highlights a deeper underlying cause of erectile dysfunction: the buildup of toxins in the interstitial cells of the testes. This toxic accumulation can impair testosterone production and damage the blood vessels essential for healthy erections — a root cause that Prolong Power’s formula does not appear to address.
User reviews on platforms like Trustpilot reflect these inconsistencies. Some customers noticed slight boosts in energy, while others experienced no significant benefit or reported unwanted side effects.
At this time, we do not recommend purchasing Prolong Power — especially when more effective, clinically supported alternatives are readily available on the market.
#3 Iron Pump
3.6 / 5
TOTAL RANKING
B-
Overall Grade
Pros
- Contains 2 out of 5 must-have ingredients
- Vegan, non-GMO, and gluten-free
- Made in the USA
- No fillers or artificial additives
Cons
- Irregular erectile response
- Focuses more on testosterone production rather than clinically proven mechanisms for enhancing overall male performance.
- Some ingredients showed limited effectiveness in clinical testing
- Digestive discomfort
After 40 days of use, Iron Pump fell short of expectations for most participants. Many reported intense headaches and general discomfort, resulting in predominantly negative feedback.
Marketed as a testosterone and vitality booster, Iron Pump is sold both on third-party websites and through its official page. However, its formula lacks transparency — there are no clear details about the ingredients or their dosages, making it difficult to assess its real effectiveness.
Scientific research on erectile dysfunction points to a key underlying issue: the buildup of toxins in the interstitial cells of the testicles, which disrupts testosterone production and impairs blood flow. Iron Pump’s formulation does not appear to address this root cause.
Customer reviews frequently mention a lack of noticeable results. The product also lacks key credibility indicators such as clinical trials or a certificate of analysis. Additionally, its availability on third-party marketplaces raises concerns about counterfeit versions, and the absence of a clear money-back guarantee further reduces consumer trust.
With vague claims, minimal scientific support, and no clear solution to the core issues behind ED, Iron Pump fails to deliver on its promises — leaving many users disappointed and questioning its value.
#4 Alpha Bites
3 / 5
TOTAL RANKING
C
Overall Grade
Pros
- Integrated with a product that millions of men already trust for boosting their testosterone levels.
- No artificial additives
- Vegan, non-GMO, and gluten-free
- Made in the USA
Cons
- Risk of counterfeit versions being sold on third-party marketplaces
- Does not contain alpha GPC.
- Users report an unpleasant aftertaste when consuming.
- Contains some ingredients with limited proof of efficacy
After 40 days of use, Alpha Bites fell short of expectations. Most participants reported no significant improvement in erectile function, leading to mostly negative reviews.
Although the product claims to boost stamina and sexual performance, its formula doesn’t live up to those promises. Sold exclusively through marketplaces like Amazon, Alpha Bites lacks transparency regarding its active ingredients and their dosages, which raises concerns about its overall credibility.
Recent scientific studies on erectile dysfunction highlight the buildup of toxins in the interstitial cells of the testicles as a major factor impairing testosterone production and blood flow. Unfortunately, Alpha Bites does not appear to include ingredients targeted at addressing this root cause.
User reviews on Amazon often mention little to no noticeable results, and some report mild digestive discomfort. Its availability only through third-party sellers also increases the risk of receiving counterfeit or tampered products. The lack of a verified money-back guarantee or third-party clinical testing further weakens consumer confidence.
With an unclear formula, limited scientific backing, and no meaningful quality assurance, Alpha Bites struggles to deliver on its claims — leaving many users disappointed and questioning its effectiveness.
#5 Alpha Force
2,7 / 5
TOTAL RANKING
C-
Overall Grade
Pros
- No fillers or artificial additives
- Non-GMO and gluten-free
- Made in the USA
- Contains huperzine A
Cons
- Does not contain 4 out of 5 must-have ingredients
- Not vegan
- No clinical study
- Higher cost compared to more effective alternatives
After 40 days of testing, results with Alpha Force were underwhelming. Many participants reported intense nausea and an unpleasant aftertaste, which contributed to an overall lukewarm reception.
Marketed as a fast-acting topical gel, Alpha Force claims to enhance blood flow and trigger erections within minutes. However, clinical data shows it was only effective for about 1 in 4 men with mild erectile dysfunction — offering minimal benefit to those with moderate to severe symptoms.
The formula mainly relies on alcohol, glycerin, and propylene glycol to produce a cooling effect. However, it lacks essential botanical extracts and key nutrients commonly linked to long-term sexual health support. More importantly, it fails to address one of the root causes of ED identified in recent studies: the buildup of toxins in testicular interstitial cells, which disrupts testosterone production and blood circulation.
On platforms like Amazon, the product holds an average rating of just 2.1 out of 5 stars. Common complaints include skin irritation, inconsistent results, and the impracticality of applying a gel during spontaneous moments.
With no long-term clinical validation and a formula that doesn’t tackle the underlying causes of ED, Alpha Force ends up being a temporary — and limited — solution for most men.
Comparison of the Top 5 Natural Supplements for Erectile Dysfunction (2025)
An honest, data-driven overview of the most popular supplements—without hype or exaggeration.
| Supplement | Strengths | Limitations | Best For |
|---|---|---|---|
| Boostaro |
✔️ Clinically tested ingredients ✔️ No common side effects ✔️ Targets root cause ✔️ Consistent results |
Only available online | Those seeking science-backed, long-term improvement |
| Prolong Power |
✔️ Popular online ✔️ Rapid-acting formula |
Inconsistent results Some side effects like heartburn, headaches |
Men looking for a quick-start solution |
| Alpha Bites |
✔️ Gummy format ✔️ Contains some hormonal support ingredients |
Underdosed actives Limited clinical impact |
Those who prefer chewables over capsules |
| Alpha Force |
✔️ Topical application ✔️ Fast response in mild cases |
Works for ~25% Skin irritation, bitter aftertaste |
Men looking for short-term topical support |
| Iron Pump |
✔️ Boosts energy ✔️ May support active lifestyles |
Headaches, poor digestion Lack of ingredient transparency |
Physically active men needing extra energy |
Conclusion: Each of these supplements earned its place in the top 5 for a reason—and different men respond to different formulas. However, if you're looking for a well-rounded, clinically supported solution that addresses the root cause of ED and delivers steady improvements, Boostaro stood out as the most complete and reliable option in our testing.
Every year, we conduct independent tests on the most widely sold supplements. Our goal is not to sell or promote any specific brand, but to provide reliable information that supports the health and well-being of everyone. If you’re unsure which option to choose, we recommend going with the one that showed the highest effectiveness in our evaluations.
