BioStacks
Best for
Ingredients (13)
Caffeine (total)
100%Dose
221 mg
Target
100–400 mg
Form
—
Acetyl L Carnitine
100%Dose
750 mg
Target
500–2000 mg
Form
—
Vitamin B6
100%Dose
1.4 mg
Target
1.3–25 mg
Form
—
Taurine
100%Dose
1000 mg
Target
1000–3000 mg
Form
—
Niacin
64%Dose
16 mg
Target
25–500 mg
Form
—
Other Ingredients (5)
SucraloseSweetener
Dose context matters. As a trace excipient in a tablet coating or capsule, the amount is minimal and not a meaningful concern. The evidence below applies to the gram-level intakes typical of sweetened protein powders, pre-workouts, and drink mixes: a 2022 human trial (Suez et al., Cell) showed sucralose disrupts gut bacteria and worsens blood sugar control in healthy adults, and a 2023 study (Schiffman et al.) found that sucralose-6-acetate — a compound formed when sucralose is digested — was genotoxic to human cells in vitro. It remains an artificial sweetener with no nutritional purpose.
Natural FlavorsFlavor
Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.
Potassium SorbatePreservative
Natural preservative derived from sorbic acid
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Purified WaterSolvent
Water meeting USP specifications used as solvent/vehicle in gummies and liquids
How to Take It
Best taken in the morning
Contains Caffeine, which is stimulating — keep it to the morning. Take it with food — the niacin in it is what makes this kind of product feel nauseating on an empty stomach.
With food
Keep it away from protein-heavy meals
On the label
MyPre*TM* Gel is our most advanced gel yet, designed to help you get the most out of your training programme. Caffeine* has been added to increase alertness, and reduce percieved exertion during your lengthy workouts, meaning that you'll be able to train harder for longer! Simply consume 1 sachet, 15-30 minutes before exercise for optimal results. Do not consume more than one sachet in 24 hours. * Beneficial effect is obtained with caffeine at doses of 3 mg/kg bodyweight at least one hour prior to exercise, and only if caffeine is avoided 12 hours prior to use.
General guidance based on the ingredients, not a substitute for the label or your doctor.
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.