Every supplement question men ask about desire is really a question about circulation, stress, and sleep. Reyes says the honest answer is unglamorous: three variables, all measurable, none solved by a proprietary blend.
The compounds with human data behind them are the boring ones. Tongkat ali has repeated trials at 200–400mg for free testosterone and stress load. Maca has consistent results for subjective desire at 1.5–3g. Zinc matters only if you are deficient, which — if you train hard and sweat daily — you may well be.
What Reyes will not defend is the dose theatre on most labels: eleven exotic actives at 50mg each, listed as a blend so nobody can check. "If a formula hides the milligrams," she says, "the milligrams are the problem."
Timing is the second half. Sublingual delivery bypasses first-pass metabolism, so a strip taken sixty minutes out lands in a usable window rather than an hour after you needed it. Capsules are not worse — they are just slower, and slower requires planning most people will not do.
The third variable is the one nobody sells: heat and quiet. Ten minutes of hot water drops cortisol measurably. Cortisol is the antagonist in every study Reyes has run. "You can buy the first two variables," she says. "The third one is free and it is the one men skip."
Consistency beats intensity across every endpoint she has measured. Men on a continuous cycle for eight weeks outperform men who load heavily before events, on both objective and self-reported measures. The protocol is a habit, not an event.
Asked what she would remove from the category entirely, Reyes does not hesitate: anything marketed on urgency. "Desire responds to the conditions of the body. Build the conditions, and it stops being something you have to summon."
"If a formula hides the milligrams, the milligrams are the problem."