Free shipping on orders $99.99+ (USA only)
PreSeries Stim-Booster can be added to any Transparent Labs Pre Workout for an added kick.
We all have those days where we don’t have the motivation to work out. Transparent Labs Stim-Booster is designed for those who need that extra “kick” before they hit the gym, and athletes who want a quick shot of energy before taking the playing field. Simply mix 1-2 scoops in with any existing Transparent Labs Pre-Workout Powder or use as a standalone with 12-16 oz of water, stir/shake, and drink.
Featuring precision doses of pure L-Citrulline, Infinergy™ Di-caffeine Malate, Caffeine, Theobromine, and essential B vitamins, this bread-and-butter pre-workout formula works synergistically to augment nitric oxide (NO) production, enhance blood flow to skeletal muscle tissue, increase focus and alertness, elevate energy, and boost motivation so you can perform your best in the trenches. With 60 servings per bottle, this is one of the best values on the market for pre-workout energy.
Directions: As a dietary supplement, mix one scoop with 12-16oz of water or with your favourite pre-workout beverage 30-40 minutes before a workout.
Servings Per Container: 60
Serving Size: 1 Scoop
L-Citrulline is a non-proteinogenic amino acid that was first discovered in the rind of watermelon in the early 1900s. It now has a well-characterized role in the urea cycle and the synthesis of nitric oxide, the latter of which is responsible for its blood flow-promoting properties and beneficial effects on athletic performance. Upon ingestion, L-citrulline is rapidly absorbed and transported to the kidneys where it is converted to L-arginine and subsequent NO.
Numerous human studies have shown that L-citrulline supplementation (4,000 - 6,000 mg per day) can significantly increase oxygen uptake during intense exercise and reduce blood pressure, both of which are conducive to enhanced athletic performance, recovery, and muscle cell volumization (1, 2, 3). In contrast to citrulline malate, the citrulline salt of malic acid, this supplement contains pure L-citrulline in its native form (the most researched form of L-citrulline).
Theobromine is the primary alkaloid found in cocoa beans, and is essentially the “little brother” of caffeine. Its functions in the body are suggested to be complementary to those of caffeine, acting as a phosphodiesterase inhibitor and central nervous system stimulant (4). Research has also found that theobromine has differential contributions to mood and cognitive function when compared to caffeine, providing further insight into the distinct, yet synergistic nature of these naturally occurring stimulants (5).
Infinergy™ is a trademarked caffeine salt of malic acid (dicaffeine malate) that was created to prolong the ergogenic effects of caffeine. Rather than the abbreviated “high” and subsequent crash people often experience after drinking a large cup of coffee, Infinergy™ provides a smoother and longer-lasting increase in mental performance and thermogenesis, all without the jitters and crashing from ordinary caffeine.
Caffeine Anhydrous - 50 mg
Caffeine is clinically proven to reduce the sensation of effort. Approximately 180 mg of caffeine has been found and confirmed to significantly increase repetitions to failure and readiness to invest effort in athletes [7, 8].
Moderate doses of caffeine have also been found to not negatively interfere with natural thermoregulation like higher (300 mg+) caffeine-infused pre workouts do .
Q: When will my order be shipped out?
A: All orders ship out the following business day.
Q: I don’t live in the United States; can I still buy PreSeries Stim-Booster?
A: Yes. Our fulfillment center allows us to ship worldwide. Standard shipping for international orders can take up to 10-14 business days.
Q: Does Transparent Labs ship to my Country?
A: Transparent Labs ships Worldwide, except to the following countries, unfortunately, due to increasingly high fraudulent activity; Albania, Algeria, India, Lithuania, Macedonia, Romania, Russia, Tunisia, & Ukraine.
Sign up to get the latest on sales, new releases and more …
© 2020 Transparent Labs. Statements contained herein have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.