Description
Pre-Workout Stack: PUMP + STIM
Two 600g tubs - the stimulant hit and the pump - plus a free 10X shaker.
Why you'll love it
- 10X Athletic STIM (600g) - the caffeinated pre-workout for energy and focus
- 10X Athletic PUMP (600g) - the stimulant-free tub for pump and blood flow
- A free 10X Athletic shaker included with every stack
- Pick your flavour for each tub independently - 56 combinations
- Save 10% versus buying the two tubs separately
Stack them, or run them solo
Mix one scoop of each into 300-400ml of water 20-30 minutes before training. New to STIM? Start with half a scoop to assess your tolerance.
At a glance
| Brand | 10X Athletic |
|---|---|
| Bundle | PUMP 600g + STIM 600g |
| Extra | Free 10X shaker included |
| Flavour combos | 56 - pick each tub's flavour separately |
Your questions, answered
How much caffeine is in STIM?
One 12 g scoop, the label's full serving, has 200 mg of caffeine; the 24 g 'advanced user' serving has 400 mg. PUMP has none. EFSA's guidance for healthy adults is no more than 200 mg in one go and 400 mg a day from all sources, so for most people one scoop of STIM is the limit.
What's the difference between PUMP and STIM?
They share the same base at the same ratio: per 24 g of PUMP you get 8,000 mg citrulline malate, 3,200 mg beta-alanine, 3,000 mg creatine monohydrate, 2,500 mg betaine, 1,000 mg N-acetyl L-tyrosine and 1,000 mg beetroot extract. STIM adds caffeine to that formula; PUMP leaves it out.
Can I mix one scoop of each?
Yes, and that's how this stack is designed to be used: one 12 g scoop of STIM plus one of PUMP in 300-400 ml of water, 20-30 minutes before training. That matches the 24 g serving's 8,000 mg citrulline malate and 3,000 mg creatine but keeps caffeine at 200 mg.
Do I need a separate creatine?
Not on training days if you use a scoop of each: both tubs contain 1,500 mg creatine monohydrate per scoop, 3 g together. Creatine increases physical performance in successive bursts of short-term, high-intensity exercise, and that effect comes from a daily 3 g intake.
How many sessions do the two tubs give?
Each 600 g tub holds 50 scoops, so one scoop of each covers 50 sessions. Using PUMP alone at its full 24 g serving gives 25.
Is it tested for banned substances?
Both tubs carry the Informed Sport mark ('banned substance tested every batch'), and 10X says it uses no WADA-listed ingredients. Check the batch on the Informed Sport site if you are drug-tested.
Who shouldn't use STIM?
It isn't recommended for children, for pregnant or breastfeeding women, or for anyone sensitive to caffeine, and you shouldn't take it close to bedtime. PUMP is the caffeine-free option for late sessions, in 8 flavours to STIM's 7 in this bundle.
Individual results may vary.
Delivery & Returns
Delivery
All orders are sent with 24h tracked delivery.
Same-day dispatch
Order before 3:45pm Monday–Friday for same-day dispatch. Order before 12pm Saturday for Saturday dispatch.
Weekend orders
Orders placed after 12pm Saturday or anytime on Sunday will be dispatched on Monday (or the next working day after a bank holiday), regardless of delivery service selected.
Returns
We offer a 30-day return window from the date you receive your order. To start a return, contact us at hello@vitamingo.co.uk.
