Highest clinical-dose adequacy in this category.
Some athletes need zero caffeine, zero stimulants, full stop. Whether it's competition day, you're stacking with your own caffeine source, or you're an athlete who wants absolutely zero threshold risk with stimulant screening — this collection is built for you.
Every product here meets two criteria simultaneously: it contains zero stimulants (no caffeine, no synephrine, no DMAA, no DMHA, no stimulant compounds of any kind) AND it has been screened against NCAA and WADA banned substance lists. This is the most conservative collection we offer. If you want the tightest possible filter on your supplements, this is it.
The NCAA sets a urinary caffeine threshold of 15 mcg/mL — roughly equivalent to 500mg of caffeine consumed before competition. While most athletes won't hit that threshold, some prefer to eliminate the variable entirely. Beyond caffeine, many stimulant compounds fall into gray areas with anti-doping authorities. This collection removes that entire category of risk.
Competition day isn't the time to wonder if your pre-workout is going to cause problems. Every product in this collection has been verified as both stimulant-free and banned-substance-free. Train and compete without a second thought.
Category leaders by SuppVault score dimension. Updates automatically as scores refresh.
Highest clinical-dose adequacy in this category.
Cleanest label disclosure — zero hidden blends.
Best score-to-cost ratio in this category.
How products in this category stack up on the SuppVault Score.
Scores are computed across 6 dimensions: clinical dosing, label transparency, manufacturing, testing, inactive ingredients, and value. See methodology page for details.
Side-by-side comparison of the highest-scored products. Toggle to sort by best value.
Dimension scores are 0–10. Cert column shows the highest-tier third-party cert when present.
Top picks from sibling categories that customers commonly shop together.
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