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L-Carnitine Tartrate (60 Capsules)

Klaire Labs - SFI Health
Original price $ 45.99 - Original price $ 45.99
Original price
$ 45.99
$ 45.99 - $ 45.99
Current price $ 45.99

Stabilized for longer shelf-life This amino acid supports energy production by transporting fatty acids into your cells’ mitochondria.† This ...

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l-Carnosine

Pure Encapsulations
Original price $ 81.40 - Original price $ 143.20
Original price
$ 81.40 - $ 143.20
$ 81.40 - $ 143.20
Current price $ 81.40

Versatile antioxidant support for cellular health and longevity‡ Antioxidant support for cell protection‡ Made with hypoallergenic, vegan i...

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L-Glutamine

Protocol For Life Balance
Original price $ 24.00 - Original price $ 24.00
Original price
$ 24.00
$ 24.00 - $ 24.00
Current price $ 24.00

L-Glutamine, the most abundant amino acid in the body, is an important constituent of proteins and participates in many key metabolic processes.* ...

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L-Glutamine (100 Capsules)

Klaire Labs - SFI Health
Original price $ 26.99 - Original price $ 26.99
Original price
$ 26.99
$ 26.99 - $ 26.99
Current price $ 26.99

L-glutamine is a primary energy source for intestinal immune cells and a major amino in muscle tissue. The body’s ability to produce adequate amoun...

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l-Glutamine (500 mg) (90 Capsules)

Pure Encapsulations
Original price $ 23.00 - Original price $ 23.00
Original price
$ 23.00
$ 23.00 - $ 23.00
Current price $ 23.00

Nutritionally supports the mucosal lining and the healthy functioning of the gastrointestinal tract, as well as lean muscle mass‡ Supports gastroi...

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L-Glutamine (60 Capsules)

Douglas Laboratories
Original price $ 14.80 - Original price $ 14.80
Original price
$ 14.80
$ 14.80 - $ 14.80
Current price $ 14.80

L-Glutamine 500 mg capsule L-Glutamine 500 mg capsules contain 500 mg of pure crystalline L-glutamine.

L-Glutathione (60 Capsules)

Ortho Molecular Products

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Glutathione is the master antioxidant in the body and is heavily concentrated in tissues such as the liver, spleen and heart. It plays a crucial ro...

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L-Histidine Guard (60 Capsules)

PERQUE
Original price $ 46.38 - Original price $ 46.38
Original price
$ 46.38
$ 46.38 - $ 46.38
Current price $ 46.38

l-Lysine

Pure Encapsulations
Original price $ 14.40 - Original price $ 38.80
Original price
$ 14.40 - $ 38.80
$ 14.40 - $ 38.80
Current price $ 14.40

Maintains healthy arginine production and supports the body's natural defenses‡ Promotes healthy immune function‡ Helps maintain healthy gum and ...

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L-Lysine (100 Capsules)

Klaire Labs - SFI Health
Original price $ 17.99 - Original price $ 17.99
Original price
$ 17.99
$ 17.99 - $ 17.99
Current price $ 17.99

Essential amino acid One of the 9 essential amino acids that must be obtained from food, L-lysine is a key player in enzyme production, collagen f...

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L-Lysine (90 Capsules)

Xymogen
Original price $ 24.99 - Original price $ 24.99
Original price
$ 24.99
$ 24.99 - $ 24.99
Current price $ 24.99

L-Lysine is an amino acid essential in human physiology. Lysine is vital for normal growth and for the manufacture of collagen, a substance import...

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L-Lysine 500 mg (100 Capsules)

Vital Nutrients
Original price $ 14.90 - Original price $ 14.90
Original price
$ 14.90
$ 14.90 - $ 14.90
Current price $ 14.90

  Contains 500mg of Lysine (as L-lysine hydrochloride) USP per capsule.

L-Lystine (500 mg)

Montiff
Original price $ 22.00 - Original price $ 34.00
Original price
$ 22.00 - $ 34.00
$ 22.00 - $ 34.00
Current price $ 22.00

Montiff’s L-Lysine aids in immune support.

l-Methionine (60 Capsules)

Pure Encapsulations
Original price $ 19.40 - Original price $ 19.40
Original price
$ 19.40
$ 19.40 - $ 19.40
Current price $ 19.40

Contains 375 mg of l-Methionine (free-form) per serving.

L-Methionine (60 Capsules)

Douglas Laboratories
Original price $ 28.00 - Original price $ 28.00
Original price
$ 28.00
$ 28.00 - $ 28.00
Current price $ 28.00

L-Methionine 500 mg capsule L-Methionine supplies 500 mg of this essential amino acid.

L-Methylfolate (1 mg) (60 Capsules)

Seeking Health
Original price $ 20.00 - Original price $ 20.00
Original price
$ 20.00
$ 20.00 - $ 20.00
Current price $ 20.00

Powerful methylation, MTHFR, and homocysteine support Supports healthy cognition and mood Healthy genetic expression support

L-MethylFolate (60 Capsules)

Klaire Labs - SFI Health
Original price $ 25.99 - Original price $ 25.99
Original price
$ 25.99
$ 25.99 - $ 25.99
Current price $ 25.99

L-MethylFolate contains L-5-MTHF, the active methylated form of folate

L-Serine (60 Capsules)

Douglas Laboratories
Original price $ 50.80 - Original price $ 50.80
Original price
$ 50.80
$ 50.80 - $ 50.80
Current price $ 50.80

L-Serine 500 mg capsule L-Serine supplies 500 mg of the amino acid in each capsule.

l-Theanine

Pure Encapsulations
Original price $ 61.00 - Original price $ 107.00
Original price
$ 61.00 - $ 107.00
$ 61.00 - $ 107.00
Current price $ 61.00

Promotes relaxation and helps to moderate occasional stress Promotes relaxation‡ Helps moderate occasional stress‡ Made with hypoallergenic, veg...

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L-Theanine

Xymogen
Original price $ 54.99 - Original price $ 87.99
Original price
$ 54.99 - $ 87.99
$ 54.99 - $ 87.99
Current price $ 54.99

L-Theanine is a naturally occurring, unique amino acid found in green tea leaves. L-theanine has been found to reduce stress by promoting relaxati...

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L-Theanine

DaVinci Laboratories
Original price $ 27.48 - Original price $ 46.56
Original price
$ 27.48 - $ 46.56
$ 27.48 - $ 46.56
Current price $ 27.48

A dietary supplement that helps promote a restful state.* L-Theanine has shown the ability to promote deep muscle relaxation and improved quality o...

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L-Theanine (100 mg) (60 Capsules)

Integrative Therapeutics
Original price $ 21.50 - Original price $ 21.50
Original price
$ 21.50
$ 21.50 - $ 21.50
Current price $ 21.50

HELPS PROMOTE A RESTFUL, RELAXED STATE* L-Theanine is an amino acid that helps promote a restful, relaxed state without diminishing daytime alertn...

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L-Theanine (200 mg)

Vital Nutrients
Original price $ 19.90 - Original price $ 36.90
Original price
$ 19.90 - $ 36.90
$ 19.90 - $ 36.90
Current price $ 19.90

L-Theanine is a unique amino acid present almost exclusively in the tea plant (Camellia sinensis).* Theanine helps maintain a sense of well-being ...

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L-Theanine (60 Capsules)

Douglas Laboratories
Original price $ 37.20 - Original price $ 37.20
Original price
$ 37.20
$ 37.20 - $ 37.20
Current price $ 37.20

Promotes relaxation and neurological health‡ L-Theanine supplies 100 mg of pure L-theanine in each vegetarian capsule. L-Theanine is an ...

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