This product contains 2 disputed ingredients: Acetyl-L-Carnitine, Arginine-Alpha-Ketoglutarate. Evidence is mixed or doses are undisclosed — see the ingredient science section below for details.
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Meets the basics — check individual pillar scores
Independent analysis No brand partnerships
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Cross-referenced with PubMed & Examine.com
Around 3mg per kg of body weight reliably improves endurance performance and focus; count all caffeine sources across the day.
An electrolyte involved in muscle and nerve function; sweat losses are much smaller than sodium's.
Magnesium supports muscle and nerve function and sleep; many athletes fall short of the recommended intake. Supplementing helps mainly when intake is low. Glycinate and malate forms are well absorbed and gentle on the stomach.
Involved in fat metabolism; supplements haven't consistently improved endurance performance.
Arginine paired with alpha-ketoglutarate, marketed for blood flow; performance studies show little benefit.
An amino acid that may help maintain focus under stress or sleep loss; effects on endurance are inconsistent.
A natural source of caffeine; count it towards your total caffeine intake. Caffeine at around 3mg per kg of body weight improves endurance.
Raises nitric oxide and may modestly improve high-intensity performance at 3–6g; lower doses are less studied.
Raises muscle carnosine, which buffers acid; around 3–6g a day for at least 4 weeks improves efforts of roughly 1–4 minutes. Harmless tingling is common; split doses reduce it.
May reduce exercise-related oxidative stress and modestly improve endurance performance; results are mixed.
A B vitamin involved in turning food into energy; supplementing helps only if your diet is short on it.
A B vitamin involved in turning food into energy; supplementing helps only if your diet is short on it.
A B vitamin involved in turning food into energy; supplementing helps only if your diet is short on it.
Involved in energy metabolism and making neurotransmitters; supplementing helps only if intake is low.
Needed for red blood cells and nerve function; especially relevant for vegans and vegetarians.
0 of 5 standards Pello tracks · No third-party banned-substance testing listed
Brand or retailer label claim, not a certification.
Brand or retailer label claim. In the US a gluten-free label means under 20 ppm gluten.
From the allergen list, where one is available.
Certifications are as listed on the product's page at The Feed. NSF Certified for Sport is also checked against NSF's own database. Certifications can lapse, so check the certifier's search before you rely on one, especially if you're drug tested.
Submitted by athletes on Pello, separate from the retailer rating at the top of the page.
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