PurePump is Do Vitamins’ pre-workout supplement. Its current unflavored product contains caffeine, so the name should not be read as a promise of stimulant-free training. The practical questions are how much you plan to take, which label matches your tub, and whether an unsweetened formula suits your preferences.
Serving size and main ingredients
The current PurePump page describes 30 full servings, with two scoops per serving and 100 mg caffeine per scoop. A full serving supplies 200 mg caffeine, 2 g L-citrulline, 2 g CarnoSyn beta-alanine and 1 g creatine monohydrate. Other listed ingredients include arginine, carnitine, BCAAs, alpha-lipoic acid and vitamins.
There is an important source discrepancy. The page text says a two-scoop serving weighs 7.7 g and identifies coffee bean as the caffeine source. Its linked Supplement Facts image says 7.6 g and green tea leaf extract. Both show 200 mg caffeine per full serving. Use the physical label for your batch, and ask Do Vitamins to resolve the source and serving-weight differences before relying on either detail.
Unflavored taste and the Lemon version
The manufacturer describes the unflavored powder as bitter and recommends mixing one or two scoops in 2–3 fluid ounces of liquid 15–30 minutes before training. It advises starting with one scoop to assess tolerance and not exceeding two scoops per serving.
PurePump Lemon is a separate historical listing. At this review, Do Vitamins says it is unavailable and gives no return date. Older Lemon labels, reviews and serving directions should not be used to fill gaps in an unflavored product comparison.
What testing can tell you
BSCG’s Do Vitamins directory lists Pure Pump Unflavored lot 797797 with a September 8, 2026 report date. Match your lot to its record. Certification addresses the program’s testing scope; it does not establish that the product builds muscle or that every possible contaminant is absent.
Putting the formula in context
The NIH’s exercise-supplement review describes creatine maintenance amounts commonly studied at 3–5 g daily. PurePump’s 1 g should therefore not be mistaken for that whole daily amount. Do not take extra caffeinated servings to increase creatine intake.
Count caffeine from every source and protect your sleep. Ask a qualified healthcare professional about suitability if you use medicines or have a medical condition. Transparent amounts help comparison, but they do not guarantee tolerance, faster recovery or results from a finished formula.
Product pages and existing offers
These are affiliate links; we may earn a commission from qualifying purchases. Check current labels and checkout terms. Discounts, including any 20% offer or code SHAWTAYYYY7, are subject to eligibility and are not guaranteed.
Sources and review notes
Reviewed October 12, 2026. Do Vitamins: PurePump Unflavored. Do Vitamins: linked Supplement Facts image. Do Vitamins: PurePump Lemon availability. BSCG: Do Vitamins lot directory. NIH ODS: Exercise and Athletic Performance. This is editorial guidance based on identified labels and sources, not a report of personal product testing. Product versions and offers can change.
