BioStacks
Dr. Mercola
Pure Power Endurance Glycine + L-Arginine (Berry Blast)
Powder · 1 Scoop (8.6g) · 30 servings · $1.67/serving
Best for
Ingredients (8)
Glycine
100%Dose
4 g
Target
3–5 g
Form
—
L-Arginine
100%Dose
2000 mg
Target
2000–6000 mg
Form
—
elevATP
100%Dose
150 mg
Target
150–300 mg
Form
—
CitraPeak Glucosyl-Hesperidin
40%Dose
200 mg
Target
500–1000 mg
Form
—
Citrus aurantium Fruit Extract
Amount not found
Other Ingredients (4)
Natural FlavorsFlavor
Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Malic AcidAcidulant
Naturally occurring organic acid found in apples, used as a flavor enhancer and acidulant in supplements
Stevia ExtractSweetener
Zero-calorie natural sweetener extracted from the leaves of Stevia rebaudiana
How to Take It
Best taken in the evening
The Glycine in it is what pulls this toward the evening. Take it between meals, away from food.
On an empty stomach
On the label
Adults, as a dietary supplement, mix one (1) scoop (8.6 g) with 8 fl. oz. of water or beverage of choice.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$49.97
Pricier than 90% of 46 glycine 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. clinical 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.