Each serving delivers 1g of **Glycine**, but the clinical research on sleep quality used 3g before bedtime — so you'd need to take three capsules 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 you potential 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 you're taking three capsules per night, which makes a powder format more practical at this dose level.
BioStacks
Every active here is dosed below the amount studied to work. See how each one compares in the breakdown below.
Best for
Ingredients (1)
Glycine
33%Dose
1 g
Target
3–5 g
Form
—
Other Ingredients (2)
Ascorbyl PalmitateAntioxidant
Fat-soluble form of vitamin C used as preservative
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
How to Take It
Best taken in the evening
Studied at 3 g before bed for sleep quality. Fine anytime if you're taking it for other reasons.
With or without food
On the label
Read the entire label and follow the directions carefully prior to use. Directions: Take one (1) capsule daily, on an empty stomach at bedtime, or as recommended by a healthcare practitioner.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$12.00
Cheaper than 75% of 46 glycine supplements
Track this supplement in your stack
Get personalized insights, interactions, and coverage recommendations.
Get Started FreeSimilar Supplements
Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the 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.