Supplements (174) for Theanine


Theanine is an amino acid primarily found in green and black tea leaves that helps promote relaxation without causing drowsiness. It is frequently used to enhance mental focus, support cognitive function, and reduce the impact of daily stress.

Across 177 Theanine products
Optimal dose100 mg – 400 mg
Price$22.19median
Price per serving$0.61median
Price per 100 mg$0.56median
Dose per serving100 mgmedian
Top forms L-Theanine
Theanine: 200 mg
Theanine: 100 mg
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82
+5
Theanine: 200 mg
Theanine: 100 mg
Image
82
+5
Theanine Serene, 120 Tablet(s) Source Naturals
4.7
★ ★ ★ ★ ★
(1140 ratings)
Theanine: 200 mg
Image
78
+12
Z-Matrix, 240 Capsule(s) Evlution Nutrition
4.7
★ ★ ★ ★ ★
(2842 ratings)
Theanine: 200 mg
Image
83
L-Theanine 200 mg, 60 Capsule(s) Country Life
4.7
★ ★ ★ ★ ★
(491 ratings)
Theanine: 200 mg
Theanine: 250 mg
Theanine: 200 mg
Theanine: 200 mg
Image
84
Theanine: 200 mg
Theanine: 200 mg
Image
85
L-Theanine 150 mg, 60 Capsule(s) Solgar
4.7
★ ★ ★ ★ ★
(768 ratings)
Theanine: 150 mg
Theanine: 200 mg
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83
+10
Sleep Nighttime Powder, 6 Liquid(s) youtheory
4.2
★ ★ ★ ★ ★
(1945 ratings)
Theanine: 200 mg
Theanine: 200 mg
Theanine: 200 mg
Image
73
Restful Sleep Blackberry Zen, 50 Gummy(ies) OLLY
4.4
★ ★ ★ ★ ★
(7420 ratings)
Theanine: 200 mg
Theanine: 200 mg
Theanine: 200 mg
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