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FAQs

How much caffeine is in PEScience Prolific?

A full 2-scoop serving of PEScience Prolific (14 g) has 320 mg caffeine from caffeine anhydrous and dicaffeine malate (Infinergy). That is 160 mg caffeine per scoop. A 280 g tub gives about 20 full servings. Prolific is not suitable for under 18s, or for anyone pregnant or breastfeeding. Start with 1 scoop and keep total caffeine under 400 mg a day.

Is PEScience High Volume caffeine free?

Yes. PEScience High Volume (New Formula) has 0 mg caffeine per serving. It is a stim-free pump powder with 6 g L-citrulline and 2 g arginine nitrate (NO3-T) per 2 scoops (15 g), plus taurine, HydroMAX glycerol and electrolytes. There is no beta-alanine, so no tingling. It suits evening training or days when you already have caffeine elsewhere.

How much citrulline is in PEScience High Volume?

Each full serving of High Volume (2 scoops, 15 g) provides 6 g pure L-citrulline, plus 2 g arginine nitrate (NO3-T), taurine, HydroMAX glycerol, sodium, magnesium and 250 mg vitamin C. The 270 g tubs give about 18 full servings. Flavours in stock include Melon Berry Twist, Raspberry Lemonade, Sour Green Apple and Sour Peach Candy.

What is the difference between PEScience Prolific and High Volume?

Prolific is the stimulant pre-workout with 320 mg caffeine per 2 scoops, plus 6 g citrulline, 2.5 g betaine and focus ingredients. High Volume is caffeine-free (0 mg) and built for pumps: 6 g citrulline and 2 g arginine nitrate, with no beta-alanine. Many people use High Volume on its own for evening sessions, or stack it only when they are not already taking Prolific's full caffeine dose.

How much protein is in PEScience Select Protein?

PEScience Select Protein typically gives 23–24 g protein per scoop (about 31–33 g powder), with roughly 110–125 kcal, low sugar and around 1.5–3 g fat depending on flavour. The blend is milk protein isolate (casein and whey), whey protein concentrate and leucine peptides. It contains MILK and SOY. Dairy Select tubs are currently out of stock at GymStack; Select Vegan Vanilla is in stock at about 20 g plant protein.

Does PEScience Select Protein contain milk?

Yes. Dairy Select Protein lists MILK (milk protein isolate and whey) and SOY (typically soy lecithin) as allergens. Peanut Butter flavours also contain PEANUT. Select Protein Vegan Series is different: it uses pea and brown rice protein, is soy-free and lactose-free per the brand, and does not contain milk.

Is PEScience Select Protein a whey and casein blend?

Yes. Select Protein's first ingredient is milk protein isolate, which is naturally about 80% casein and 20% whey, plus added whey protein concentrate 80% and leucine peptides. That whey-plus-casein profile is what the brand is known for, versus a 100% whey isolate. Always check the tub label for the exact blend and allergens.

How much protein is in PEScience Select Vegan?

Select Protein Vegan Series provides about 20 g plant protein per scoop from pea protein concentrate and brown rice protein concentrate. The Vanilla 756 g tub in stock is naturally sweetened with stevia and is soy-free and lactose-free per PEScience. Protein contributes to the growth and maintenance of muscle mass.

How much creatine is in PEScience TruCreatine+?

Each TruCreatine+ serving (~5.35 g) provides 5 g micronised creatine monohydrate plus 150 mg elevATP (ancient peat and apple extract). It is unflavoured and mixes into water or a shake. GymStack stocks 161 g and 482 g tubs. Creatine increases physical performance in successive bursts of short-term, high intensity exercise; the beneficial effect is obtained with a daily intake of 3 g of creatine.

What flavours does PEScience High Volume come in?

High Volume flavours currently in stock at GymStack are Melon Berry Twist, Raspberry Lemonade, Sour Green Apple and Sour Peach Candy in 270 g tubs, plus a Melon Berry Twist single-serve sachet. Guava Pineapple Punch is listed but out of stock. All share the same caffeine-free formula with 6 g citrulline per full serving.

What flavours does PEScience Prolific come in?

Prolific flavours in stock are Guava Pineapple Punch, Melon Berry Twist, Raspberry Lemonade and Sour Peach Candy in 280 g tubs. Mango Splash and Sour Green Apple are listed but out of stock. Every flavour has the same 320 mg caffeine per 2-scoop serving (160 mg per scoop).

Is PEScience Amino IV vegan?

Yes. Amino IV uses instantised vegan BCAAs (5 g per serving) plus the remaining essential amino acids, with electrolytes (about 50 mg calcium, 99 mg potassium, 50 mg magnesium and 50 mg sodium on matched panels). Flavours in stock include Black Cherry, Orange Dreamsicle, Sour Green Apple and Strawberry Lemonade in 390–405 g tubs.

How much caffeine is in one scoop of PEScience Prolific?

One scoop of Prolific has 160 mg caffeine. The full serving is 2 scoops (320 mg). The label advises starting with 1 scoop to check tolerance and not exceeding 2 scoops a day. Prolific is not suitable for under 18s, or for anyone pregnant or breastfeeding, and should not be stacked with other caffeine sources.

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