Supplements
Huperzine A
Huperzine A is added to pre-workouts for focus because it slows the breakdown of acetylcholine. That biological effect is measurable, while a noticeable focus or performance benefit during workouts remains uncertain.
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Supplements
10 articlesSupplements
Caffeine Anhydrous
Caffeine is one of the better-supported pre-workout ingredients for alertness, endurance, and some lifting performance. A body-weight-based dose helps you find a useful amount while accounting for sleep and other caffeine sources.
Supplements
PEAK ATP
PEAK ATP is an oral ATP disodium ingredient included for possible strength and fatigue-resistance benefits. Small studies have reported promising strength results; researchers are still testing how dependable the effects are and how the ingredient works.
Supplements
Taurine
Taurine supports normal muscle-cell functions and may offer a small benefit in some exercise tests. The pictured pre-workout contains 1 g, an amount used in small studies, while results still differ by activity.
Supplements
L-Tyrosine
L-tyrosine helps the body make brain messengers involved in attention. Pre-workouts include it for possible focus support on demanding days; research is most encouraging under stress, while routine gym benefits remain an open question.
Supplements
Betaine Anhydrous
Betaine is used daily in some pre-workouts for possible strength support during training. A modest strength benefit has appeared in reviews, and the 2.5 g in this scoop matches a common amount used in studies.
Supplements
Alpha-GPC
Alpha-GPC supplies choline for acetylcholine, a messenger involved in attention and muscle signaling. Some pre-workouts include it for focus and power; small studies offer early signals, while workout effects are still being studied.
Supplements
Beta-alanine
Beta-alanine builds muscle carnosine with daily use and can modestly support sustained hard efforts, including demanding sets and intervals. Its effect depends on the workout, and the familiar tingles are simply a side effect.
Supplements
Creatine
Creatine monohydrate is a well-supported daily supplement for strength and repeated hard efforts, with a possible small added benefit for muscle size. Cognitive research is emerging, especially during severe sleep deprivation.
Supplements
L-citrulline
L-citrulline supports nitric-oxide signaling, which is why it is popular for pre-workout blood flow and the muscle pump. Exercise studies suggest a possible small benefit, with results that vary across people and workouts.