BioStacks
Best for
Ingredients (2)
L-Carnitine
100%Dose
500 mg
Target
500–2000 mg
Form
—
Acetyl-L-Carnitine
100%Dose
500 mg
Target
500–2000 mg
Form
Premium
Other Ingredients (2)
GlycerinHumectant
Sweet-tasting liquid used in soft capsules and liquids
HypromelloseCapsule
Plant-derived capsule material from cellulose
How to Take It
Take it anytime
Absorption is modest either way; taking it with carbohydrate-containing meals improves uptake.
With food
On the label
Adults, as a dietary supplement, take two (2) capsules daily. One (1) in the morning and one (1) in the evening.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$24.97
Near the median of 119 carnitine supplements
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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. studied 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.