Sustained Energy
98mg caffeine (anhydrous) per serving.
SERIOUS PRE-WORKOUT by SERIOUS SUPPLEMENTS — a transparent-label formula for energy, focus, and endurance with a tongue-in-cheek pixel vibe.*
*Statements have not been evaluated by the FDA. Product is not intended to diagnose, treat, cure, or prevent any disease.
98mg caffeine (anhydrous) per serving.
Up to 6000mg L-Citrulline plus taurine and L-Tyrosine.*
Vitamin B6 and B12 at 200% NRV.
We don't hide behind proprietary blends. We believe in 100% transparency, so you see every single ingredient and its exact dose. Just clean, effective formulas you can trust.
Every ingredient is chosen based on proven, human studies — not marketing fads. We're 100% transparent about our science and will never make exaggerated health claims. We just make what works.
“Smooth energy and no jitters. New PRs already.”
“Ingredients are fully disclosed. Tastes great.”
“My go-to before long runs.”
Endorsements reflect real experiences; results vary.
Yes. Every lot is tested for identity, purity, strength, and composition prior to release.
We do not recommend using other caffeine sources concurrently. Total caffeine from all sources should be monitored.
No. We avoid disease claims and advertise responsibly per FTC guidance. Statements on this site are not evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease.
Everything is well within safe limits and tested countless times. However, beta-alanine is famous for causing a harmless but sometimes uncomfortable tingling or itching sensation. It’s completely safe and nothing to worry about.