Each serving delivers 1g of **Glycine**, but the clinical research on sleep quality used 3g before bedtime — so you'd need to take all six capsules (three servings) to reach the studied dose. At that intake, you're right at the effective minimum for supporting sleep onset and reducing next-day fatigue.
**Glycine** also serves as a building block for collagen and plays a role in creatine synthesis, giving this product relevance for skin and muscle support beyond sleep. The capsule form makes dosing flexible, which helps since individual needs vary.
The main tradeoff is pill burden. Getting to the 3g clinical dose means six capsules per night, which makes a powder format more practical for most people at this dose level.
BioStacks
Other Ingredients (2)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
HypromelloseCapsule
Plant-derived capsule material from cellulose
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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.