Product guide · Restricted substance
Shadow Labs Magic Powder – Extreme Pre-Workout
Stimulant formula from Shadow Labs, powder. This guide sets out what the manufacturer states about the composition of Shadow Labs Magic Powder, what independent research says about its main ingredient, and the safety and regulatory points that apply. It contains substances that are not authorised as food or medicine in the EU. This guide is educational: it does not recommend use and gives no directions for use.
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- Evidence summaries
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Overview
Manufacturer informationShadow Labs Magic Powder contains caffeine: 400 mg per serving.
Ingredients & composition
Manufacturer information| Ingredient | Amount |
|---|---|
| Caffeine | 400 mg per serving |
Serving size stated by the manufacturer: 10 g (2 scoops).
Scientific background
Independent researchCaffeine
Caffeine is a stimulant that blocks adenosine receptors in the brain, reducing perceived effort and fatigue. It is found in coffee, tea and energy drinks and is a common ingredient in pre-workout products2.
Dicaffeine malate (sold as Infinergy®) is caffeine bonded to malic acid. Its caffeine adds to the total caffeine in a product, but labels do not always state the caffeine equivalent.
Research evidence
Independent researchCaffeine
The International Society of Sports Nutrition concludes that caffeine consistently improves exercise performance when consumed in doses of about 3–6 mg per kg of body mass, with benefits for muscular endurance, movement velocity, strength, sprinting, jumping and aerobic exercise2.
Evidence limitations
Independent researchNo published study has tested this specific product; the research summarised here concerns the ingredient itself.
Caffeine
Responses vary widely between people, partly because of genetics and habitual caffeine use. Many studies use pure caffeine, so results do not automatically apply to multi-ingredient products2.
Safety & potential risks
For this product
The manufacturer states 400 mg per serving of caffeine (per serving). That is more than the 200 mg single dose that EFSA considers safe for healthy adults1. Avoid other caffeine sources and do not exceed the label serving.
Caffeine
EFSA concluded that single doses of up to 200 mg, and daily intakes of up to 400 mg from all sources, do not raise safety concerns for healthy adults. For pregnant and breastfeeding women, daily intakes up to 200 mg do not raise concerns for the foetus or infant1.
Higher intakes can cause anxiety, sleep disturbance, raised heart rate and blood pressure, and digestive upset. Combining several caffeine sources (coffee, energy drinks, pre-workouts) raises total intake12.
Regulatory status
This product contains an ingredient that is restricted or not authorised as a food supplement in some or all EU markets. No health benefits or directions for use are given.
Caffeine
Caffeine is permitted in EU foods and food supplements, subject to labelling rules. It is not on the World Anti-Doping Agency Prohibited List3.
Scientific references
- EFSA Panel on Dietetic Products, Nutrition and Allergies. Scientific Opinion on the safety of caffeine. EFSA Journal. 2015;13(5):4102. DOI 10.2903/j.efsa.2015.4102
- Guest NS, VanDusseldorp TA, Nelson MT, et al. International Society of Sports Nutrition position stand: caffeine and exercise performance. J Int Soc Sports Nutr. 2021;18:1. PubMed 33388079
- World Anti-Doping Agency. The Prohibited List (current edition). Source
Sources checked against PubMed, Crossref or the official publisher on 2026-11-04. Manufacturer information is taken from the product's own data and has not been independently tested.
The product
Shadow Labs Magic Powder – Extreme Pre-Workout
€49,90 · Sold out