Glycine
SleepSweet-tasting amino that lowers core body temperature for deeper sleep. Cheap, well-tolerated, and especially useful with magnesium glycinate.
sleep-qualitydeep-sleepamino-acidthermal-regulation
Typical dose
3 g before bed
Evidence
Moderate (some RCTs)
Onset time
Acute: 30–60 min
Half-life
~1 hour
Forms
Powder, Capsule
Source
synthetic
Best taken with
water, 30 min before bed
Best time of day
evening
Bioavailability
5/5
Safety rating
5/5
Price per serving
$0.10
Vegan / GF / 3rd-party
✓ / ✓ / ✓
Common uses
- • Deep sleep
- • Sleep quality
- • Collagen synthesis
Effect profile
Strength
●●○○○
Muscle
●●○○○
Energy
●○○○○
Focus
●●○○○
Mood
●●●○○
Sleep
●●●●○
Immunity
●○○○○
Recovery
●●○○○
Longevity
●●●○○
Common side effects
- • Generally none
Avoid if
- • Clozapine therapy
Drug interactions
- • Clozapine
Related sleep supplements
Medical disclaimer
SupplementDuel is for educational purposes only and is not medical advice. Consult a physician before starting, stopping, or combining supplements.