Theanine (L-Theanine)

L-Theanine is an amino acid found in green tea that is very similar in structure and action to glutamate, a naturally-occurring amino acid in the body that helps transmit nerve impulses in the brain. L-theanine promotes a sense of calm alertness or relaxation without sedation.

Swanson Health Products: GABAplex with L-Tyrosine & L-Theanine (60 Veg Caps)

Swanson Health Products

GABAplex with L-Tyrosine & L-Theanine

60 Veg Caps

$25.99

$9.59

Jarrow Formulas, Inc.: Theanine (100 mg 60 Caps)

Jarrow Formulas, Inc.

Theanine

100 mg 60 Caps

$15.95

$7.27

Jarrow Formulas, Inc.: Theanine Gummies - Apple Flavor (100 mg 60 Gummies)

Jarrow Formulas, Inc.

Theanine Gummies - Apple Flavor

100 mg 60 Gummies

$23.95

$11.90

Source Naturals: Theanine Serene with Relora (120 Tabs)

Source Naturals

Theanine Serene with Relora

120 Tabs

$28.98

$24.49

Source Naturals: Theanine Serene with Relora (30 Tabs)

Source Naturals

Theanine Serene with Relora

30 Tabs

$8.98

$7.89

Source Naturals: Theanine Serene (60 Tabs)

Source Naturals

Theanine Serene

60 Tabs

$17.25

$12.99

Source Naturals: Serene Science Theanine Serene with Relora (60 Tabs)

Source Naturals

Serene Science Theanine Serene with Relora

60 Tabs

$15.98

$11.19

Source Naturals: Serene Science Theanine Serene with Relora (10 Tabs)

Source Naturals

Serene Science Theanine Serene with Relora

10 Tabs

$3.75

$2.75

Source Naturals: Serene Science Theanine Serene (120 Tabs)

Source Naturals

Serene Science Theanine Serene

120 Tabs

$28.75

$24.99

Swanson Health Products: Felix Calm with Suntheanine (1.11 oz Pkg)

Swanson Health Products

Felix Calm with Suntheanine

1.11 oz Pkg

$7.49

$4.49

Country Life: L-Theanine (100 mg 60 Lozenges)

Country Life

L-Theanine

100 mg 60 Lozenges

$27.79

$20.84

Enzymatic Therapy: L-Theanine (100 mg 60 Veg Caps)

Enzymatic Therapy

L-Theanine

100 mg 60 Veg Caps

$20.49

$9.67

Enzymatic Therapy: L-Theanine (100 mg 180 Veg Caps)

Enzymatic Therapy

L-Theanine

100 mg 180 Veg Caps

$54.99

$28.34

Nutralife Health Products: L-Theanine (200 mg 60 Veg Caps)

Nutralife Health Products

L-Theanine

200 mg 60 Veg Caps

$17.19

$7.03

NOW Foods: L-Theanine (90 Veg Caps)

NOW Foods

L-Theanine

90 Veg Caps

$21.99

$10.04

Olympian Labs: L-Theanine (60 Caps)

Olympian Labs

L-Theanine

60 Caps

$38.99

$23.74

Source Naturals: L-Theanine (200 mg 30 Tabs)

Source Naturals

L-Theanine

200 mg 30 Tabs

$17.25

$12.99

Solaray: L-Theanine (200 mg 45 Veg Caps)

Solaray

L-Theanine

200 mg 45 Veg Caps

$30.79

$13.57

Healthy Origins: L-Theanine (100 mg 180 Veg Caps)

Healthy Origins

L-Theanine

100 mg 180 Veg Caps

$34.99

$11.19

Country Life: Maxi-Skin Zen with L-Theanine - Mandarin Chamomile (3.5 oz Pwdr)

Country Life

Maxi-Skin Zen with L-Theanine - Mandarin Chamomile

3.5 oz Pwdr

$22.79

$17.09

Kal: Relax-a-Saurus L-Theanine Blend - Grape (30 Chwbls)

Kal

Relax-a-Saurus L-Theanine Blend - Grape

30 Chwbls

$11.79

$5.19

Kal: GABA L-Theanine Stress B - Mango Tangerine (100 Lozenges)

Kal

GABA L-Theanine Stress B - Mango Tangerine

100 Lozenges

$14.69

$6.09

Natural Factors: Stress Relax Suntheanine L-Theanine (100 mg 60 Chwbls)

Natural Factors

Stress Relax Suntheanine L-Theanine

100 mg 60 Chwbls

$25.95

$19.08

NOW Foods: Double Strength L-Theanine (60 Veg Caps)

NOW Foods

Double Strength L-Theanine

60 Veg Caps

$25.99

$12.74

Source Naturals: Serene Science L-Theanine (200 mg 60 Tabs)

Source Naturals

Serene Science L-Theanine

200 mg 60 Tabs

$32.98

$23.09

Source Naturals: Serene Science L-Theanine (200 mg 60 Caps)

Source Naturals

Serene Science L-Theanine

200 mg 60 Caps

$33.98

$23.79

Source Naturals: Serene Science L-Theanine (200 mg 120 Caps)

Source Naturals

Serene Science L-Theanine

200 mg 120 Caps

$66.50

$46.79

Swanson Health Products: Suntheanine L-Theanine (100 mg 60 Veg Caps)

Swanson Health Products

Suntheanine L-Theanine

100 mg 60 Veg Caps

$16.49

$8.54

Swanson Health Products: L-Theanine - Double Strength (200 mg 60 Veg Caps)

Swanson Health Products

L-Theanine - Double Strength

200 mg 60 Veg Caps

$24.99

$11.99

Doctor's Best: L-Theanine with Suntheanine (150 mg 90 Veg Caps)

Doctor's Best

L-Theanine with Suntheanine

150 mg 90 Veg Caps

$29.99

$15.54