CBUM Thuper Pump - Blue Raspberry, 570g (20 Serves)

CBUM Thuper Pump - Blue Raspberry is a stimulant-free pump pre-workout from CBUM, part of the Raw Nutrition range, built for lifters who want more blood flow and training volume without another dose of caffeine. Each 28.5g scoop is built around a headline 8g of L-citrulline, alongside creatine, beta-alanine and betaine. At $97.95 for 20 serves, it works as a standalone pre-workout or as a caffeine-free layer under one you already use.

How CBUM Pre-Workout works

A pump comes down to nitric oxide. Citrulline converts to arginine in the kidneys, raising circulating arginine more reliably than taking arginine directly, and arginine is the substrate your body uses to make nitric oxide, which relaxes and widens blood vessels so more blood reaches working muscle. CBUM Thuper Pump delivers 8g of L-citrulline per scoop, in the range used in most of the research behind that effect.

The remaining actives cover other systems. Beta-alanine buffers the hydrogen ions that build up during high-rep work, delaying the fatigue that usually ends a set early. Creatine monohydrate resupplies the ATP-PCr system that fuels short, maximal efforts and draws water into muscle cells, supporting both strength and pump fullness. Betaine, present as betaine anhydrous and betaine nitrate, acts as an osmolyte for cell hydration under training stress, and the nitrate form adds a second route to nitric oxide.

Why choose CBUM Thuper Pump

CBUM Thuper Pump suits lifters who want a pump-focused formula that doesn't add to daily caffeine load. At 70 calories and 1g of carbohydrate per scoop, it fits a cut or a lean bulk without meaningfully affecting macros. Each scoop also carries ingredients most pump formulas leave out:

• Alpha-GPC (300mg), Pine Bark Extract (200mg) and CitraPeak Glucosyl-Hesperidin (200mg), layered in for focus and circulation support
• 500mg of sodium from Himalayan Pink Salt per scoop, an electrolyte contribution supporting fluid balance through a longer session
• Informed Sport certified, so it is batch-tested for banned substances if you train or compete under a testing body

Getting the most from it

Mix CBUM Thuper Pump into 300-400ml of cold water 20-30 minutes before lifting, so the citrulline and betaine reach circulation before your first set. It carries no caffeine, so pair it with a stimulant from our pre-workout range on heavy days, or use it alone for a second session or an evening lift. Training long or sweating heavily, top up the sodium in each scoop with a product from our electrolytes range.

With 5g of creatine already in every scoop, skip a separate product from our creatine range unless you want a higher daily total.