Myprotein
Thermopure

72/100
SUPPIE SCORE
60/100
EFFICACY
Medium
SAFETY
94/100
CLEANLINESS
What Does Thermopure Do?
Its main active, Green Tea (Camellia sinensis) 15:1 Extract, provides 375 mg a day, but its extract strength is not stated. Most actives with a studied range (4 of 6) are below it.
How does the caffeine in Thermopure compare to a standard cup of coffee?
Can I take Thermopure alongside my regular pre-workout or coffee?
Why does the label advise against taking Thermopure while fasting?
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What Are the Benefits of Thermopure?
Based on proven scientific research
Alertness and FocusStrong
Exercise EnduranceStrong
Energy MetabolismModerate
Fat OxidationMild
Good For:
What Are the Side Effects of Myprotein Thermopure?
Always consult your health practitioner if in doubt.
RiskMedium Risk
Overview
•Provides 180 mg caffeine per 3-capsule serving; combining this with other caffeinated beverages or supplements may trigger nervousness, palpitations, or sleep disruption.
•Contains 375 mg green tea extract supplying 37.5 mg EGCG; European food safety warnings advise against consuming on an empty stomach or exceeding 800 mg total daily EGCG.
•Formulated with BioPerine (piperine), which inhibits drug-metabolising enzymes (CYP3A4, P-glycoprotein) and may alter the blood levels of prescription medications.
•Contains cayenne pepper powder, which can cause gastrointestinal irritation, heartburn, or stomach upset in sensitive individuals.
•Not suitable for pregnant or lactating women, individuals under 18 years of age, or those sensitive to stimulants.
Potential Side Effects
Negative Interactions
Inactive Ingredients
Brown rice flour
Low RiskHydroxypropyl methyl cellulose
Low RiskWater
Low RiskWhat Are the Ingredients in Myprotein Thermopure?
Cayenne Pepper Powder (Capsicum frutescens)
50.0mg
Chromium Picolinate
115μg
Green Tea (Camellia sinensis) 15:1 Extract
375.0mg
L-Theanine
125.0mg
Vitamin B6
5.1mg
Caffeine Anhydrous
180.0mg
L-Tyrosine
200.0mg
BioPerine® Black Pepper (Piper nigrum) 50:1 Extract
5.1mg
Vitamin B12
21μg
Brown Rice Flour
Hydroxypropyl Methyl Cellulose
Water
Dosage & Bioavailability
How the active doses and forms in Thermopure compare to the research.
•Caffeine Anhydrous — 180 mg a day; within the 75-400 mg/day used in studies; a preferred form.
•Green Tea (Camellia sinensis) 15:1 Extract — extract strength not stated, so the effective dose cannot be checked.
•L-Theanine — 125 mg a day; studies use 200-400 mg/day.
Sources & References
Frequently Asked Questions
Common questions about Myprotein Thermopure