September 24, 2026 · 4 min read
Tongkat Ali Extract and Tribulus Terrestris Extract are the two ingredients that show up in one HorseFil marketing graphic but not the other. Both are common, well-known names in the men's vitality category, so it's worth understanding what each is generally used for, independent of the labeling question.
Tongkat Ali (Eurycoma longifolia) is a root from Southeast Asia with a growing modern research base around testosterone levels and male vitality. It's one of the more actively studied botanicals in this space, though as with most botanical research, results vary by study, extract, and dose.
Tribulus Terrestris has a long traditional-use history tied to libido, and it's an extremely common ingredient across men's performance products generally. Its research on testosterone specifically is more mixed than its traditional reputation might suggest, though its use for general vitality and libido support is well established historically.
If either of these ingredients specifically matters to you — because you're looking for them, or specifically want to avoid them — the ingredient-count discrepancy we found means you can't be fully certain from the marketing materials alone whether they're actually in the version of HorseFil you'd receive. We'd suggest reaching out to the seller directly if that certainty matters to your decision.