Introduction
Berserk Advanced Formula is a male-support dietary supplement marketed for sexual performance and overall male vitality. The bottle contains 60 capsules, with a suggested serving size of two capsules.
Its formula combines six herbal ingredients: Tribulus terrestris, horny goat weed, Longjack, Panax ginseng, ashwagandha and yohimbe. Several have been studied for testosterone, erectile function or sexual health, but the clinical evidence varies substantially.
The biggest concern is transparency. All six ingredients are grouped into one 838 mg proprietary blend, so the label does not reveal how much of each ingredient is actually present. That makes it difficult to determine whether the formula supplies clinically relevant doses.
Quick Summary
| Product | Berserk Advanced Formula |
|---|---|
| Category | Male-support dietary supplement |
| Serving Size | 2 capsules |
| Servings | 30 |
| Capsules | 60 |
| Total Active Blend | 838 mg proprietary blend |
| Key Ingredients | Tribulus, horny goat weed, Longjack, Panax ginseng, ashwagandha, yohimbe |
| Product-Specific Clinical Trial | None identified |
| Distributed By | MJO, Sheridan, Wyoming |
| FDA Approved | No |
| Overall Assessment | Potentially relevant ingredients, but major dose-transparency and safety concerns |
What Is Berserk?
Berserk is a dietary supplement designed around male sexual and performance support. The front label describes it as an “Advanced Formula” that “supports performance.”
The Supplement Facts panel confirms six botanical ingredients within an 838 mg proprietary male-support blend. It also lists silicon dioxide, rice flour and magnesium stearate as inactive ingredients.
The label does not provide individual quantities for Tribulus, horny goat weed, Longjack, ginseng, ashwagandha or yohimbe.
How Does Berserk Work?
The formula appears to target several potential pathways simultaneously.
Tribulus, Longjack and ashwagandha are commonly marketed around testosterone and male vitality. Ginseng has research involving erectile function and general physical performance. Horny goat weed contains icariin, a compound that has attracted interest because of its potential PDE5-related activity.
Yohimbe is different. Its bark contains yohimbine, an alpha-2 adrenergic antagonist that can affect the nervous system, heart rate and blood pressure. This ingredient introduces substantially more safety considerations than most of the other botanicals in the formula. ([nccih.nih.gov](https://www.nccih.nih.gov/health/yohimbe))
Berserk Ingredients
| Ingredient | Listed Amount | Evidence Assessment |
|---|---|---|
| Tribulus terrestris | Not disclosed | Limited evidence for ED; weak testosterone evidence |
| Horny Goat Weed | Not disclosed | Mostly preclinical/mechanistic evidence |
| Longjack (Tongkat Ali) | Not disclosed | Some human testosterone evidence |
| Panax ginseng | Not disclosed | Some evidence for erectile function |
| Ashwagandha | Not disclosed | Some evidence for testosterone in men |
| Yohimbe | Not disclosed | Insufficient supplement evidence; meaningful safety concerns |
Tribulus Terrestris
Tribulus has long been marketed as a testosterone and libido booster, but the evidence is much less impressive than the marketing often suggests.
A 2025 systematic review of clinical trials found that Tribulus supplementation improved erectile-function measures in some studies, but the overall evidence was rated low. Importantly, eight of the ten included studies did not find significant testosterone changes. ([pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/40219032/))
A newer meta-analysis published in 2026 found improvements in IIEF scores compared with placebo, but again did not find a significant effect on total testosterone. ([pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/40360723/))
This suggests Tribulus may have some potential for sexual function, but it should not be marketed as a proven testosterone booster.
Tribulus and Erectile Function/Testosterone: 2025 Systematic Review
Tribulus for Erectile Dysfunction: 2026 Meta-Analysis
Horny Goat Weed
Horny goat weed contains icariin, a flavonoid that has attracted interest because laboratory research suggests PDE5-inhibitory and vascular effects.
A recent review describes potential mechanisms involving PDE5 inhibition, testosterone synthesis and vascular signaling. However, the authors emphasize that robust clinical evidence is still lacking. ([pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/35958901/))
This distinction is important. Laboratory evidence for purified icariin does not prove that an unspecified amount of horny goat weed in Berserk produces a clinically meaningful erectile effect.
Icariin and Erectile Function: Review of Current Evidence
Longjack / Tongkat Ali
Longjack, also known as Tongkat Ali or Eurycoma longifolia, is commonly used in male-performance supplements.
Clinical research suggests that certain standardized Tongkat Ali preparations may increase testosterone or improve aspects of sexual health, particularly in men with stress or lower testosterone levels. However, the evidence is not uniform, and extract standardization matters.
A major limitation with Berserk is that the label does not disclose the amount or standardization of Longjack.
Without that information, it is impossible to know whether the Berserk dose resembles the doses used in human trials.
Panax Ginseng
Panax ginseng has a more established research history than some of the other herbs in Berserk.
A systematic review of randomized controlled trials identified studies investigating ginseng for erectile dysfunction, physical performance and several other outcomes, but concluded that there was no conclusive evidence supporting ginseng for a particular disease. ([pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/22969004/))
Research specifically involving ED has produced potentially positive findings, but studies are generally small and formulations vary.
NCCIH also notes that Asian ginseng can cause insomnia and may interact with medications, including some blood-pressure drugs, statins and antidepressants. ([nccih.nih.gov](https://www.nccih.nih.gov/health/asian-ginseng))
Panax Ginseng: Systematic Review of Randomized Controlled Trials
Ashwagandha
Ashwagandha has some of the better evidence in this formula for hormonal effects.
A 2026 systematic review and meta-analysis of 23 randomized trials involving 1,706 participants found that ashwagandha reduced cortisol and increased testosterone in men, although the researchers noted substantial heterogeneity and called for more standardized trials. ([pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/41740946/))
NCCIH describes the evidence for increased testosterone as limited and notes that different studies use different preparations. ([nccih.nih.gov](https://www.nccih.nih.gov/health/ashwagandha))
The problem remains dose. Berserk does not tell us how much ashwagandha is in its 838 mg blend.
Ashwagandha and Hormonal Outcomes: 2026 Meta-Analysis
Yohimbe
Yohimbe is the ingredient I would scrutinize most carefully.
Yohimbe bark contains yohimbine, but the amount of yohimbine can vary substantially between dietary supplements. NCCIH states that there is insufficient evidence to determine whether yohimbe supplements are effective for ED and notes significant safety concerns. ([nccih.nih.gov](https://www.nccih.nih.gov/health/yohimbe))
Reported adverse effects associated with yohimbine/yohimbe include:
- Rapid heartbeat
- High blood pressure
- Anxiety
- Cardiac arrhythmias
- Seizures
- Gastrointestinal problems
NCCIH also notes that most yohimbe supplements do not clearly state how much yohimbine they contain.
That is particularly relevant here because Berserk’s label simply says “Yohimbe Extract” without providing an amount or yohimbine standardization.
NCCIH: Yohimbe — Usefulness and Safety
What Does the Science Say About Berserk?
The individual ingredients give the product a plausible male-performance concept, but that is not the same as evidence for Berserk itself.
I did not identify a randomized controlled trial testing the exact six-ingredient Berserk formula.
The proprietary blend creates another problem: even when a clinical study supports one of these ingredients, the amount used in the study cannot be compared with Berserk’s dose.
Therefore:
- Product-specific evidence: No clinical trial identified.
- Ingredient evidence: Mixed, ranging from preliminary to moderately promising.
- Testosterone evidence: Ashwagandha and Tongkat Ali have some supportive research; Tribulus is much less convincing.
- Erectile-function evidence: Some research exists for Tribulus and Panax ginseng, but evidence is not equivalent to PDE5 medications.
- Safety: Yohimbe creates the most significant concern.
Potential Benefits
- Male vitality: Ashwagandha, ginseng and Tongkat Ali have research relevant to male health.
- Sexual function: Tribulus and ginseng have some human evidence involving erectile function.
- Potential libido support: Several ingredients have traditional or preliminary evidence for sexual wellness.
- Hormonal support: Ashwagandha has evidence suggesting possible testosterone increases in men.
- Vascular mechanism: Icariin and ginseng have biological mechanisms relevant to blood flow, although clinical evidence is limited.
These are potential ingredient-level benefits, not proven outcomes for Berserk.
Pros and Cons
Pros
- Contains several botanicals with human research.
- Ashwagandha has relatively promising testosterone evidence.
- Tribulus has emerging clinical evidence for erectile-function measures.
- Panax ginseng has been studied in ED research.
- Simple two-capsule serving.
Cons
- All six active ingredients are hidden inside one proprietary blend.
- No individual ingredient doses are disclosed.
- No Berserk-specific clinical trial identified.
- Yohimbe introduces significant safety concerns.
- No yohimbine amount or standardization is provided.
- Clinical doses cannot be compared with the product’s formula.
- Not a substitute for an FDA-approved ED medication.
Berserk vs. Prescription ED Medication
| Feature | Berserk | PDE5 Medication |
|---|---|---|
| Type | Dietary supplement | Prescription medication |
| Primary Approach | Multiple botanicals | Specific pharmacological mechanism |
| Product-Specific RCT | Not identified | Extensive |
| Individual Dose Transparency | No | Yes |
| FDA Approved for ED | No | Yes, for approved PDE5 drugs |
| Evidence for ED | Limited/mixed | Strong |
This distinction is important. Berserk should not be marketed or reviewed as a natural equivalent of Viagra, Cialis or other prescription ED treatments.
Safety and Side Effects
The presence of yohimbe substantially changes the safety profile of this formula.
NCCIH reports that yohimbine has been associated with irregular heartbeat, blood-pressure problems, heart attacks and seizures. Yohimbe can also cause anxiety, rapid heartbeat and gastrointestinal symptoms. ([nccih.nih.gov](https://www.nccih.nih.gov/health/yohimbe))
People taking antidepressants—particularly MAO inhibitors or tricyclic antidepressants—should not use yohimbe without appropriate medical guidance because of potential interactions. ([nccih.nih.gov](https://www.nccih.nih.gov/health/yohimbe))
Ashwagandha can cause stomach upset, diarrhea and drowsiness and has been linked to rare cases of liver injury. NCCIH advises caution or avoidance in people with thyroid or autoimmune disorders and notes interactions with thyroid, diabetes, blood-pressure, sedative, immunosuppressant and anticonvulsant medications. ([nccih.nih.gov](https://www.nccih.nih.gov/health/ashwagandha))
Panax ginseng may cause insomnia and can affect blood clotting and blood glucose. It can also interact with medications. ([nccih.nih.gov](https://www.nccih.nih.gov/health/asian-ginseng))
Because Berserk contains multiple active botanicals and does not disclose individual doses, I would recommend medical or pharmacist review before use for anyone taking prescription medication.
Is Berserk FDA Approved?
No.
Berserk is labeled as a dietary supplement. Dietary supplements are not FDA-approved for safety and effectiveness before they reach the market. FDA places responsibility on manufacturers and distributors to ensure that products meet applicable safety and labeling requirements. ([fda.gov](https://www.fda.gov/food/dietary-supplements/information-consumers-using-dietary-supplements))
That does not mean the ingredients are automatically ineffective or unsafe. It means Berserk has not undergone the same premarket approval process required for an FDA-approved prescription drug.
Pricing and Availability
The supplied Amazon listing identifies Berserk by ASIN B0HJHMD7XC. Because the product is newly indexed and Amazon pricing can change, I would verify the live listing price at publication rather than inserting a potentially outdated price.
The bottle contains:
| Product | Berserk Advanced Formula |
|---|---|
| Capsules | 60 |
| Servings | 30 |
| Serving Size | 2 capsules |
| Blend | 838 mg proprietary male-support blend |
| Distributor | MJO, Sheridan, WY |
Customer Reviews
Because this specific Berserk product has limited independently indexed information, I would not use review counts or early marketplace testimonials as evidence that the formula improves testosterone or erectile function.
Customer reviews can provide useful information about practical experiences, but they cannot replace randomized clinical research.
Who Might Consider Berserk?
Berserk may appeal to adult men looking for a multi-herbal male-support supplement.
However, the proprietary blend means I would consider it a poor choice for anyone who wants precise control over ingredient dosing. A transparent formula with individually disclosed amounts would make it easier to compare a product against clinical evidence.
Who Should Avoid It or Seek Medical Advice First?
- People with cardiovascular disease or uncontrolled blood pressure.
- People taking antidepressants, particularly MAO inhibitors or tricyclic antidepressants.
- People taking blood-pressure or cardiovascular medications.
- People with thyroid or autoimmune disorders.
- People taking thyroid medication, sedatives or anticonvulsants.
- People with liver disease.
- Anyone already taking prescription ED medication.
10 Frequently Asked Questions
1. What is Berserk Advanced Formula?
Berserk is a male-support dietary supplement containing six herbal ingredients in an 838 mg proprietary blend.
2. What ingredients are in Berserk?
The label lists Tribulus terrestris, horny goat weed, Longjack, Panax ginseng, ashwagandha and yohimbe.
3. How much of each ingredient does Berserk contain?
The label does not disclose individual amounts. It only states that the total proprietary blend weighs 838 mg per two-capsule serving.
4. Does Berserk increase testosterone?
There is no clinical trial showing that Berserk increases testosterone. Ashwagandha and Tongkat Ali have some supportive research, but the product’s individual doses are unknown.
5. Does Tribulus increase testosterone?
Current evidence does not provide robust support for Tribulus as a testosterone booster. A 2025 systematic review found that most included studies did not significantly increase testosterone. ([pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/40219032/))
6. Does Berserk treat erectile dysfunction?
No. There is no identified clinical trial establishing Berserk as an ED treatment.
7. Is Berserk the same as Viagra?
No. Berserk is a dietary supplement. Viagra contains sildenafil, an FDA-approved prescription drug for ED.
8. Is yohimbe in Berserk safe?
Yohimbe can carry significant risks. NCCIH reports associations with high blood pressure, rapid heartbeat, arrhythmias, seizures and other adverse effects. ([nccih.nih.gov](https://www.nccih.nih.gov/health/yohimbe))
9. Does Berserk contain yohimbine?
The label says “Yohimbe Extract” but does not disclose the amount of yohimbine. Yohimbe naturally contains yohimbine, but the actual amount can vary substantially between supplements. ([nccih.nih.gov](https://www.nccih.nih.gov/health/yohimbe))
10. Is Berserk worth trying?
The formula contains several researched herbs, but the undisclosed individual doses and inclusion of yohimbe make it difficult to recommend confidently.
Final Verdict
Berserk Advanced Formula has a plausible male-performance ingredient profile, but its proprietary blend is a major weakness. Tribulus, Panax ginseng, Tongkat Ali and ashwagandha all have some degree of human research, while horny goat weed has mostly mechanistic and preclinical support. The newest Tribulus research is encouraging for erectile-function measures but still rates the overall evidence as low. ([pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/40360723/))
The biggest concern is yohimbe. Unlike an ordinary botanical added for general wellness, yohimbe can contain variable amounts of yohimbine and has documented cardiovascular and neurological safety concerns. Berserk does not disclose the amount of yohimbe or yohimbine, making the safety assessment unnecessarily difficult. ([nccih.nih.gov](https://www.nccih.nih.gov/health/yohimbe))
I also would not describe Berserk as a clinically proven testosterone booster or ED treatment. No product-specific randomized clinical trial was identified, and the proprietary blend prevents meaningful comparison between Berserk’s formula and the doses used in human studies.
Editorial Rating: 2.9/5
Berserk earns credit for including several botanicals with legitimate research behind them. However, the 838 mg proprietary blend, lack of individual doses, absence of product-specific clinical evidence and inclusion of undisclosed-dose yohimbe substantially reduce its evidence and safety rating.
For men with persistent erectile dysfunction, a medical evaluation and evidence-based treatments have a much stronger clinical foundation than a proprietary multi-herbal supplement.
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