Public label information for EndoPeak lists magnesium, zinc, Tribulus terrestris, chrysin, epimedium, tongkat ali, saw palmetto, Chinese hawthorn and winged treebine (Cissus quadrangularis).
| Ingredient | Reported amount per serving | Evidence note |
|---|---|---|
| Magnesium | 133.3 mg | Essential mineral with broad physiological roles; not specific proof of sexual-performance benefit. |
| Zinc | 20 mg | Important for normal endocrine and reproductive function; benefit depends strongly on baseline status. |
| Tribulus | 500 mg | Human evidence is mixed and should not be equated with guaranteed testosterone or erectile effects. |
| Chrysin | 50 mg | Mechanistic interest exists, but oral human evidence is limited. |
| Epimedium | 33.3 mg | Contains icariin-related compounds; much of the erectile-function rationale is preclinical. |
| Tongkat Ali | 33.3 mg | Some small human studies exist for stress or male health outcomes; preparation and dose matter. |
| Saw Palmetto | 33.3 mg | Studied mostly in urinary/prostate contexts rather than as a general sexual-performance ingredient. |
| Chinese Hawthorn | 33.3 mg | Traditionally associated with cardiovascular support; product-level sexual effects are unproven. |
| Winged Treebine | 33.3 mg | Better known as Cissus quadrangularis; evidence is not specific to EndoPeak’s marketed outcomes. |
Why Dose Matters
Ingredient names alone are not enough. Research findings depend on extract standardization, daily dose, duration, participant characteristics and the outcome measured.
Ingredient Evidence vs Product Evidence
A study on isolated zinc, tongkat ali or an epimedium compound does not automatically validate a multi-ingredient commercial capsule. That gap is one of the most important limitations when evaluating EndoPeak.
Label Transparency
The formula is more useful to evaluate when exact amounts are visible. Buyers should still confirm the current Supplement Facts panel because formulations can change.
Safety Context
Botanical ingredients can interact with medicines or underlying conditions. People using blood-pressure drugs, anticoagulants, endocrine therapies, prostate medications or multiple supplements should discuss the combination with a qualified clinician.
Magnesium: What It Contributes
Magnesium supports normal nerve, muscle and energy metabolism. That makes it nutritionally relevant, but there is no reason to treat magnesium alone as proof of an erection or libido effect in a person who is already sufficient.
Zinc: Deficiency Context Matters
Zinc is important for normal reproductive biology. Evidence is most compelling when deficiency is present; supplementing an already adequate intake is a different question. EndoPeak's reported 20 mg serving should be considered alongside food and other supplements.
Tribulus terrestris
Tribulus is common in sports and male-health formulas. Trials have produced mixed findings, and claims that it reliably raises testosterone in healthy men go beyond the evidence.
Tongkat Ali
Tongkat ali extracts have been studied in small human trials for stress, male reproductive markers and sexual well-being. Extract chemistry and dose differ substantially between products, so one study cannot be assumed to validate every tongkat-containing formula.
Epimedium and Icariin
Epimedium is frequently marketed for sexual performance because compounds such as icariin show biological activity in laboratory research. Preclinical activity is not the same as demonstrating a clinically meaningful effect from the amount used in EndoPeak.
Saw Palmetto, Hawthorn and Cissus
These ingredients are better known from prostate/urinary, cardiovascular and musculoskeletal research areas respectively. Their presence broadens the formula, but also makes the evidence harder to interpret as a single male-performance intervention.
What We Could Not Verify
We did not identify a published randomized trial on the exact EndoPeak blend. We also do not treat promotional references to individual ingredients as evidence that the full commercial formulation has been independently tested.
Related Research
Editorial owner: EndoPeak Reviews Editorial Team · Last reviewed: October 3, 2026