BioStacksWhy Theanine for Sleep
For sleep support, Theanine is a important ingredient backed by research. L-Theanine is an amino acid found in tea leaves. It promotes relaxation without drowsiness and may support sleep quality when combined with other sleep aids. In clinical studies, theanine can support sleep quality as part of a calming routine.
What dose to look for
Clinical studies typically use 100–250 mg of theanine. Common supplemental range; 200 mg is the most studied single dose for relaxation and focus. Supplements that fall short of this threshold are unlikely to match what clinical trials achieved.
The evidence behind theanine
Research supporting theanine for sleep is rated as moderate. Several clinical trials on relaxation and focus, most using 200mg; consistent but modest effects Learn more
OLLY
Sleep Blackberry Zen
100 mg
youtheory
Relax Magnesium Powder Berry
100 mg
Nature's Bounty
Anxiety & Stress Relief
200 mg
NOW
L-Theanine
285 mg
NOW
Double Strength L-Theanine 200 mg
200 mg
Life Extension
Enhanced Stress Relief, 30 Vegetarian Capsules
200 mg
California Gold Nutrition
L-Theanine 200 mg
200 mg
LifeSeasons
Anxie-T Gummies, Stress Support, 90 Gummies
150 mg
Natural Factors
Stress-Relax Nighttime Magnesium Glycinate With Melatonin, GABA & L-Theanine
50 mg