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
Life Extension

Glycine 1000 mg

Capsule · 100 servings · $0.12/serving

9 / 100Very Poor

Supports

Score Breakdown

Formulation
9
Safety
100
Final score
9/100

Ingredients (1)

Glycine1 g

33% of effective dose

Label Nutrition Facts

Other Ingredients

Fillers, coatings, and additives

2Safe

Ascorbyl PalmitateAntioxidant

Safe

Microcrystalline CelluloseBinder

Safe

Track this supplement in your stack

Get personalized insights, interactions, and coverage recommendations.

Get Started Free

Similar Supplements

Products that cover similar health dimensions based on their ingredients.

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.