Unlock Explosive Gains: The Pre-Workout Powders Big Brands Don’t Want You to Know About in 2025!
Besides the taste, I like that it’s budget-friendly while still including evidence-backed ingredients, like L-citrulline, beta-alanine, betaine anhydrous, caffeine anhydrous, L-theanine, theobromine, and AstraGin. AstraGin, also found in Transparent Labs BULK BLACK, is a plant-based compound formulated to enhance nutrient absorption. While AstraGin is safe at 0.5 milligrams per kilogram of body weight per day, more research is needed on the potential performance-enhancing benefits.
Like some of the other pre-workouts on our list, NitroSurge is made with the artificial sweetener sucralose, which some health experts have raised concerns about taking in high doses. Also, Jacked Factory supplements do not undergo third-party testing, which ensures products include the ingredients listed on the label and nothing else. This is especially important for athletes who undergo drug testing for banned substances. We only gave Nitrosurge 3 out of 5 stars in this category since it is made in a Current Good Manufacturing Practice (cGMP)-certified and FDA-registered facility.
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