A traditional libido-support herb, also present in one graphic but not the other.
Tribulus Terrestris has a long traditional-use history tied to libido, and it's one of the most common ingredients across the men's performance supplement category generally.
Its research on testosterone specifically is more mixed than its traditional reputation, though its historical use for general vitality support is well documented.
Like Tongkat Ali, this ingredient shows up in the 8-ingredient graphic for this product but not in the separate 6-ingredient graphic — a gap we're noting rather than resolving on your behalf.