Quick answer: The newest brand list for Strong Peak is Tongkat Ali, horny goat weed (Epimedium), Tribulus terrestris, maca root and L-arginine. Two older lists named different herbs. No amounts are published. Maca and L-arginine have the most useful evidence; Tribulus does not raise testosterone in healthy men.
Fact check
Three lists, one product: Strong Peak pages have named at least three different ingredient sets, and none shows a Supplement Facts panel with amounts. Below we cover the newest list. Before you buy, ask for the label, and once it arrives, go by what is printed on your bottle.
The current list
Tongkat Ali (Eurycoma longifolia)
A Southeast Asian root. Small trials, mostly 200 to 400 mg a day of standardised extract, reported modest improvements in stress hormones and testosterone in men with low levels. Quality varies and some products have tested positive for heavy metals.
Tongkat Ali research on PubMedHorny goat weed (Epimedium)
Contains icariin, which acts on the same enzyme as some ED drugs in lab studies. Human evidence is very limited. High doses have been linked to dizziness and fast heart rhythm.
Epimedium research on PubMedTribulus terrestris
A traditional herb popular in men's formulas. Reviews find it does not raise testosterone in healthy men; a few small trials report better desire scores.
Tribulus research on PubMedMaca root
A Peruvian root. Trials at 1.5 to 3 g a day reported modest improvements in desire after 6 to 12 weeks, without hormone changes.
Maca research on PubMedL-Arginine
An amino acid used to make nitric oxide, which relaxes blood vessels. Studies in mild erection problems used gram amounts, more than a gummy usually holds. It can lower blood pressure.
MedlinePlus on L-arginineThe older lists
| Source | Ingredients named |
|---|---|
| strongpeak.co (2026) | Tongkat Ali, horny goat weed, Tribulus, maca, L-arginine |
| Earlier product website | Muira puama, ginkgo, Asian ginseng, L-citrulline, vitamin C, L-lysine |
| Brand graphic | Ginseng, maca, fenugreek, Tribulus |
Muira puama, ginkgo, ginseng and L-citrulline (earlier site) and fenugreek (graphic) all have their own small evidence base and their own interactions, which is why the label you receive matters.
Evidence at a glance
| Ingredient | Common claim | What studies show |
|---|---|---|
| Maca | Desire | Modest gains after 6–12 weeks |
| L-arginine | Blood flow | Some benefit at gram doses |
| Tongkat Ali | Testosterone | Small trials, mainly in men with low levels |
| Tribulus | Testosterone | No rise in healthy men |
| Horny goat weed | Erections | Lab data; very little in humans |
More: Tongkat Ali and Tribulus, the real story.
Sources
- FDA: Tainted sexual enhancement products.
- NIDDK: Erectile dysfunction.
- MedlinePlus: L-arginine.
- NIH Office of Dietary Supplements: What you need to know about supplements.
- NCCIH: Using dietary supplements wisely.
- CDC: Physical activity for adults.
Frequently asked questions
General information, not medical advice. Strong Peak is a dietary supplement and is not intended to diagnose, treat, cure or prevent any disease.