PER4M PUMP (GlycerSize Included) – Stim-Free Pre-Workout For Huge Pumps

Want the pump without the jitters? PER4M PUMP is a zero-caffeine pre-workout built purely for performance, blood-flow and hydration. Each tub delivers 30 servings of the main PUMP formula plus a separate 30-serving pot of patented GlycerSize (3,000 mg per serving). By keeping glycerol in its own dry pot, PER4M prevents moisture-related clumping in the main blend—so you get a smooth mix and the same powerful pump every time.

At the heart of the formula is a massive 10,000 mg dose of L-Citrulline per serving. Citrulline is the go-to nitric-oxide booster for athletes looking for fuller muscles and vein-popping pumps. It supports increased arginine and nitric oxide (NO) availability, helping blood and nutrients reach working muscle. The result? A satisfying tightness, stronger mind-muscle connection and the confidence to push for extra reps.

Backing up citrulline is 3,000 mg of Taurine. Taurine helps with cell volumisation and fluid balance, which pairs perfectly with glycerol to enhance that “full” look in the gym. It also supports endurance so your pump doesn’t fade halfway through the session.

The included GlycerSize (65% glycerol powder, 3,000 mg) is the hydration hammer. Glycerol draws water into the intracellular space (what lifters call “hyper-hydration”), which can improve endurance in hot conditions and amplify muscle fullness. Because glycerol is hygroscopic, many formulas clump in the tub. PER4M’s smart two-part system lets you add the 3 g GlycerSize mini-scoop right before you drink—Pump Without the Clump.

Why you’ll love it

• Zero stimulants / zero caffeine – perfect for late training, deloads, sensitive users, or stacking with a stim pre.

• Big clinical-style doses – 10 g L-Citrulline, 3 g Taurine and 3 g GlycerSize per serving.

• Hydration support – glycerol + taurine team up for cell hydration and training endurance.

• 30 true servings – both tubs provide 30 servings that are designed to be used together.

• Great flavours – refreshing candy and fruit profiles you’ll actually look forward to.

How to use
Mix 1 scoop of PUMP (approx. 16.5 g) with 300–400 ml cold water. Add 1 mini-scoop of GlycerSize (3 g) to the same shaker and shake hard for 10–15 seconds. Drink 20–30 minutes before training. For lighter sessions, you can use PUMP alone; for maximum fullness and hydration use both parts together. Do not dry-scoop. Stay well hydrated.

Who is it for?

• Lifters who want pumps, performance and focus without stimulants.

• Athletes training late evening or running a stimulant break.

• Anyone who already uses a stim pre and wants a pump add-on that stacks cleanly.

Stacking ideas

• With a stim pre-workout (halve serving sizes as needed).

• With creatine monohydrate (5 g) for strength and fullness.

• With an essential amino acids or whey isolate intra/post-workout.

Allergens & suitability
Formulated without caffeine. No common allergens are intentionally added, but this product is made in a facility that handles milk/soya; cross-contact is possible. Suitable for vegetarians. Always check the label of your specific flavour.

Storage
Close both tubs tightly after use. Store cool and dry. Because glycerol attracts moisture, keep the GlycerSize pot sealed until you scoop.

FAQ

Does PER4M PUMP contain caffeine or other stimulants?
No. It’s completely stim-free. You get performance and blood-flow benefits without any buzz, crash or sleep disruption.

Why is GlycerSize in a separate pot?
Glycerol powders love moisture and can make pre-workouts clump. PER4M separates a full 3,000 mg serving of GlycerSize to keep the main tub free-flowing and to deliver a reliable dose every time—hence Pump Without the Clump.

What will I feel?
A warmer, fuller, tighter feel in trained muscles (“the pump”), along with better endurance and hydration. There’s no tingling or jitters because there’s no beta-alanine itch and no stimulants.

Can I stack it with a caffeinated pre-workout?
Yes. Many users combine half to one serving of PUMP with a stim pre for the best of both worlds. Adjust caffeine to your tolerance.

Is one scoop enough?
One serving (PUMP scoop + 3 g GlycerSize) is designed to be optimal for most people: 10 g citrulline, 3 g taurine and 3 g glycerol. Advanced users can tailor water intake and serving size, but don’t exceed label directions.

Will it affect hydration or digestion?
Glycerol and taurine promote cell hydration. Drink extra water throughout your workout. If you’re new to glycerol, start with ½ serving to assess comfort.

When should I take it?
15–30 minutes before training. For long sessions, sip the last half during your warm-up.

Is it tested for banned substances?
PER4M formulates for everyday athletes. If you’re a tested competitor, consult your governing body and product label.