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L-Glutamine Powder 200 Grams (7.1 oz.)
L-Glutamine Supplement
L-glutamine. Free form amino acid, high purity, well tolerated. L-glutamine supports the development of enterocytes, a type of cell that is plentiful in the epithelial lining of the gastrointestinal tract.* L-glutamine also supports muscle glycogen stores, growth ...
L-Glutamine Powder 200 Grams (7.1 oz.)
$65.39
L-Glutamine Powder 500 Grams, powder
L-Glutamine is the most abundant amino acid (building block for proteins) with varying benefits. One of L-Glutamine’s great benefits is in supporting the mucosal lining of your digestive tract which supports the healthy function of the gastrointestinal tract.‡
Another benefit of L-Glutamine is i...
L-Glutamine Powder 500 Grams, powder
$42.00
L-Glutathione
NutriDyn’s L-Glutathione supports the body’s natural defense system with patented Setria® glutathione to support healthy immune function, promote detoxification, and encourage healthy oxidative stress response.◆The body produces its own glutathione but poor diet, stress, pollution, toxins, and ...
L-Glutathione
$46.00
L-Glutathione Power™ 50 g (1.8 oz) powder
Bioavailable Glutathione Powder*
Glutathione in powder form for optimal absorption and bioavailability to support antioxidant status, healthy detoxification, and proper immune function.*
Gluten Free Dairy Free Soy Free Vegetarian Non-GMO Vegan
Designs for Health's logo, text, trademarks, g...
L-Glutathione Power™ 50 g (1.8 oz) powder
$137.49
L-Lysine
L-Lysine is an essential amino acid the body uses as a building block for protein and producing enzymes, collagen, and healthy immune cells.◆ Humans need to consume L-Lysine through food or supplementation to help support healthy immune system functioning, promote healthy connective tissues, and...
L-Lysine
$17.65
l-Lysine
L-Lysine supports natural immune defenses and promotes healthy gum and lip tissue for adults seeking wellness‡
Benefits & Features
Supports the body's natural immune defenses‡
Promotes healthy gum and lip tissue‡
Made with high-quality vegan ingredients backed by verifiable science
Indi...
l-Lysine
$15.50
L-Lysine 120 Vegetarian Capsules
Healthy Immune Balance*
L-Lysine is an essential amino acid that helps to promote normal tissue repair, healthy energy production, proper fatty acid metabolism, and a healthy immune response.*
Gluten Free Dairy Free Soy Free Vegetarian Non-GMO Vegan
Designs for Health's logo, text, tradema...
L-Lysine 120 Vegetarian Capsules
$38.99
L-Lysine 500mg 100 Vegetarian Capsules
L-Lysine Supplement
L-lysine is an essential amino acid that is involved with calcium absorption, collagen formation, and the production of bone tissue.* Free form amino acid, high purity, well tolerated.
Allergy Research Group's logo, text, trademarks, graphics, and photo...
L-Lysine 500mg 100 Vegetarian Capsules
$17.19
L-Lysine 90 Vegetable Capsules
L-Lysine from Progressive Laboratories provides 500 mg of the L-lysine per vegetable capsule. Lysine is an essential amino acid needed for growth and to help maintain nitrogen balance in the body.‡ (Essential amino acids cannot be made in the body and must be supplied by the diet or supplements)...
L-Lysine 90 Vegetable Capsules
$20.00
L-Methionine - 60 Capsules
L-Methionine supplies 500 mg of this essential amino acid.
Douglas Laboratories' logo, text, trademarks, graphics, and photo images are the property of Douglas Laboratories, LLC and are used with permission. Copyright © 2026.
*FDA Disclaimer: The information about this product and statement...
L-Methionine - 60 Capsules
$29.50
L-Methionine 500mg 100 Vegetarian Capsules
L-Methionine Supplement
L-methionine is an essential sulfur-bearing amino acid that supports liver detoxification, liver fat metabolism, and energy production.* Free form amino acid, high purity, well tolerated.
Allergy Research Group's logo, text, trademarks, graphics, an...
L-Methionine 500mg 100 Vegetarian Capsules
$28.29
L-Ornithine-L-Aspartate 100 Grams (3.5oz)
L-Ornithine-L-Aspartate (LOLA) supports healthy nitrogen metabolism by promoting the natural detoxification of ammonia through the urea cycle and glutamine synthesis pathways.* By providing key amino acids, LOLA helps maintain liver function, ammonia clearance, and metabolic balance, especially...
L-Ornithine-L-Aspartate 100 Grams (3.5oz)
$74.29
L-Serine - 60 Capsules
L-Serine supplies 500 mg of the amino acid in each capsule.
Douglas Laboratories' logo, text, trademarks, graphics, and photo images are the property of Douglas Laboratories, LLC and are used with permission. Copyright © 2026.
*FDA Disclaimer: The information about this product and statemen...
L-Serine - 60 Capsules
$53.00
L-Theanine
Helps promote a restful, relaxed state*
L-Theanine is an amino acid that helps promote a restful, relaxed state without diminishing daytime alertness.*
How it works
Human studies have found that supplemental L-theanine promotes the generation of alpha brain waves, suggesting a state of r...
L-Theanine
$22.00
l-Theanine
L-Theanine promotes calm relaxation and mental clarity while supporting healthy cellular function and moderating caffeine effects‡
Benefits & Features
Promotes relaxation without causing drowsiness‡
Supports healthy cellular function‡
May help moderate the effects of caffeine on the cen...
l-Theanine
$65.50
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