To choose a pre-workout supplement fairly, compare declared active ingredients per portion—such as caffeine, L-citrulline and beta-alanine—along with sweetener transparency, allergen statements, net quantity and cost per daily portion.
What are the key active ingredients in a pre-workout?
- Caffeine: check the declared amount per recommended portion. Compare stimulant levels against your personal tolerance and total daily caffeine intake from all sources.
- Pump actives (e.g. L-citrulline / Citrulline Malate): check the exact declared grams of active amino acid per portion rather than a proprietary blend title.
- Beta-alanine: check the declared portion amount. Tingling sensation is a known harmless side effect of beta-alanine; dosage should be clearly listed on the label.
- Allergens and additives: review flavourings, food colours, anti-caking agents and sweetener declarations.
How do pump formulas differ from high-stimulant pre-workouts?
Pump formulas focus on nitric oxide precursors like L-citrulline and glycerol without added caffeine or central nervous system stimulants. High-stimulant pre-workouts include caffeine anhydrous or plant extracts supplying caffeine. Always read the exact label figures before deciding which fits your training schedule.
Learn how we evaluate product facts in our Editorial Standards.
Compare pre-workout formulas in our shop
Prices include Irish VAT.
Sources used for this guide
- Regulation (EU) No 1169/2011 on food information to consumers — mandatory caffeine warnings and allergen declarations.
- Food Safety Authority of Ireland: labelling for distance selling — distance selling requirements for prepacked food supplements.
- European Commission: nutrition and health claims — current reference framework for supplement claims.
