Supplements

Products (177) for Theanine

Theanine is an amino acid primarily found in tea leaves, known for its ability to promote relaxation and calm without causing drowsiness. It supports cognitive functions like focus and attention, often enhancing mental c...

Median$19.95/product$0.54/serving$0.52/100 mg100 mg amount
Best forms L-Theanine
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82
+6
Theanine: 200 mg
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83
L-Theanine 200 mg, 180 Capsule(s) Nature's Way
4.6
(1404 ratings)
Theanine: 200 mg
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74
+4
Theanine: 100 mg
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82
+6
Theanine Serene, 120 Tablet(s) Source Naturals
4.7
(1138 ratings)
Theanine: 200 mg
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83
+10
Sleep Nighttime Powder, 6 Liquid(s) youtheory
4.4
(1944 ratings)
Theanine: 200 mg
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78
+12
Z-Matrix, 240 Capsule(s) Evlution Nutrition
4.7
(2827 ratings)
Theanine: 200 mg
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84
Theanine: 250 mg
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83
+3
Theanine: 100 mg
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80
Theanine: 200 mg
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77
+6
Theanine: 200 mg
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84
Theanine: 200 mg
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82
Theanine: 200 mg
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85
L-Theanine 150 mg, 60 Capsule(s) Solgar
4.7
(758 ratings)
Theanine: 150 mg
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81
Theanine: 200 mg
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82
Theanine: 200 mg
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81
Theanine: 200 mg
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83
L-Theanine 200 mg, 60 Capsule(s) Country Life
4.7
(477 ratings)
Theanine: 200 mg
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84
L-Theanine 100 mg, 60 Capsule(s) Life Extension
4.7
(145 ratings)
Theanine: 100 mg
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73
Restful Sleep Blackberry Zen, 50 Gummy(ies) OLLY
4.4
(7123 ratings)
Theanine: 200 mg
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82
Theanine: 200 mg
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