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L-Histidine, 600mg - 60 vcaps | NOW Foods
£18.75
Critical for Normal Brain Function*    Immune System Support*L-Histidine is an essential amino acid that is best known for its role in the production of histamine, an important mediator of immune...
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L-Lysine, 1000mg (Powder) - 454 grams | NOW Foods
£19.45
Supports Healthy Connective TissueSupports Calcium Absorption L-Lysine is an essential amino acid, which means that it cannot be manufactured by the body and must be obtained through the diet or...
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L-Lysine, 1000mg - 100 tablets | NOW Foods
£10.75
Supports Healthy Connective TissueSupports Calcium Absorption L-Lysine is an essential amino acid, which means that it cannot be manufactured by the body and must be obtained through the diet or...
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L-Lysine, 1000mg - 250 tablets | NOW Foods
£22.75
Supports Healthy Connective TissueSupports Calcium Absorption L-Lysine is an essential amino acid, which means that it cannot be manufactured by the body and must be obtained through the diet or...
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L-Lysine, 500mg - 100 tablets | NOW Foods
£7.00
Supports Healthy Connective TissueSupports Calcium Absorption L-Lysine is an essential amino acid, which means that it cannot be manufactured by the body and must be obtained through the diet or...
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L-Lysine, 500mg - 100 vcaps | NOW Foods
£8.45
Supports Healthy Connective TissueSupports Calcium Absorption L-Lysine is an essential amino acid, which means that it cannot be manufactured by the body and must be obtained through the diet or...
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L-Lysine, 500mg - 250 tablets | NOW Foods
£14.45
Supports Healthy Connective TissueSupports Calcium Absorption L-Lysine is an essential amino acid, which means that it cannot be manufactured by the body and must be obtained through the diet or...
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L-Lysine, 500mg - 250 vcaps | NOW Foods
£17.00
Supports Healthy Connective TissueSupports Calcium Absorption L-Lysine is an essential amino acid, which means that it cannot be manufactured by the body and must be obtained through the diet or...
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L-Lysine, 620mg - 100 vcaps | Life Extension
£9.25
Lysine is an essential amino acid necessary for growth and to help maintain nitrogen balance in the body. It may help promote proper nitrogen balance in the body and inhibit...
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L-Lysine/Zinc Plus Topical Patch - 30 Patches | PatchMD
£21.50
PatchMD’s L-Lysine patch is ideal for year round or seasonal support. This easy-to-use patch delivers a steady dose of active ingredients to support you throughout your day (or night).Formulated with...
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L-Methionine, 500mg - 100 caps | NOW Foods
£16.45
Supports Detox Mechanisms.Sulfur Amino Acid.With Vitamin B-6. L-Methionine is an essential amino acid, which means that it cannot be manufactured by the body and must be obtained through the diet...
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L-Methylfolate - 60 Capsules | Seeking Health
£20.45
Previously L-5-MTHF - 60 CapsulesSeeking Health’s L-methylfolate contains 1,700 mcg DFE of methylfolate in the bioavailable form of L-5-methyltetrahydrofolate (L-5-MTHF).The bioactive form of L-methylfolate (L-5-MTHF) is well-utilized in the methylation...
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L-OptiZinc, 30mg - 100 vcaps | NOW Foods
£9.45
Highly Bioavailable FormSupports Enzyme FunctionWith Copper L-OptiZinc is a form of Zinc complexed with the amino acid Methionine. Research has demonstrated this product to be better absorbed and retained longer...
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L-Ornithine, 500mg - 120 vcaps | NOW Foods
£17.75
Fitness Amino AcidProtein MetabolismUrea DetoxOrnithine is a non-essential amino acid that plays a central role in the urea cycle, functioning along with arginine and citrulline to rid the body of...
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L-Ornithine, Powder - 227 grams | NOW Foods
£34.45
Fitness Amino AcidProtein MetabolismUrea DetoxOrnithine is a non-essential amino acid that plays a central role in the urea cycle, functioning along with arginine and citrulline to rid the body of...
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L-Phenylalanine, 500mg - 120 vcaps | NOW Foods
£11.75
Free-FormL-Phenylalanine is an essential amino acid that is necessary for the synthesis of proteins. Because L-Phenylalanine can be readily converted into the amino acid tyrosine, which forms part of the...
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L-Proline, 500mg - 120 vcaps | NOW Foods
£13.00
Important for Collagen ProductionProvides Structural SupportL-Proline is an amino acid that is essential for the synthesis of collagen, the most abundant protein in mammals. Collagen is the main structural protein...
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L-Serine, 500mg - 60 vcaps | Swanson
£13.45
While L-serine is classified as a non- essential amino acid, it is nonetheless important to a variety of structures and functions within your body. Cell proliferation, nervous system functions and...
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L-Theanine - 60 vcaps | Life Extension
£18.45
Theanine is the predominant amino acid of tea that produces calming effects in the brain by increasing levels of serotonin and dopamine, and blocking the binding of L-glutamic acid to...
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L-Theanine 200mg - 60 Capsules | Vital Nutrients
£41.45
May help moderate occasional stress and promotes relaxationL-Theanine is a unique amino acid present almost exclusively in the tea plant (Camellia sinensis). Theanine helps maintain a sense of well-being and...
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L-Theanine AlphaWave - 60 vcaps | Doctor's Best
£18.45
Science-Based Nutrition    AlphaWave    Supports Relaxation and Mental Clarity    Dietary Supplement    Non-GMO    Gluten Free    Soy Free    VeganAt Doctor's Best, we ride the wave to relaxation with Alpha Wave® L-Theanine. Our highly...
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L-Theanine with Decaf Green Tea, 100mg - 90 vcaps | NOW Foods
£13.00
Promotes RelaxationHealthy Vascular FunctionWith Decaf Green TeaL-Theanine is a unique amino acid found naturally in the tea plant (Camellia sinensis). L-Theanine promotes relaxation while maintaining alertness and promotes healthy cognitive...
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L-Theanine with Inositol and Taurine, 100mg - 90 chewables | NOW Foods
£16.45
Promotes Relaxation.Healthy Vascular Function.With Inositol and Taurine. L-Theanine promotes relaxation without the drowsiness or negative side effects associated with other calming agents. L-Theanine also supports healthy cardiovascular function through this...
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L-Theanine with Suntheanine, 150mg - 90 vcaps | Doctor's Best
£27.45
What is Doctor's Best L-Theanine with Suntheanine?Doctor's Best L-Theanine with Suntheanine is a patented form of the amino acid L-theanine. L-theanine is an amino acid found in green tea that...
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L-Theanine, Pure Powder - 28 grams | NOW Foods
£20.95
Promotes Relaxation.Healthy Vascular Function. L-Theanine is a unique amino acid found naturally in the tea plant (Camellia sinensis). L-Theanine promotes relaxation while maintaining alertness and promotes healthy cognitive function. L-Theanine...
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L-Tryptophan 500mg - 60 Capsules | Metabolic Maintenance
£50.45
L-Tryptophan is the essential amino acid that acts as a precursor to 5-HTP, serotonin, melatonin, and niacin. Tryptophan assists with normal sleep patterns, mood, and appetite. Use with care when...
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L-Tryptophan, 1000mg Double Strength - 60 tablets | NOW Foods
£22.25
Tryptophan is an essential amino acid; therefore, it is not synthesized by the body and must be obtained from the diet. Tryptophan is critical for the production of serotonin and...
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L-Tryptophan, 500mg - 120 vcaps | NOW Foods
£23.25
Tryptophan is an essential amino acid; therefore, it is not synthesized by the body and must be obtained from the diet. Tryptophan is critical for the production of serotonin and...
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L-Tryptophan, 500mg - 60 vcaps | NOW Foods
£13.00
Tryptophan is an essential amino acid; therefore, it is not synthesized by the body and must be obtained from the diet. Tryptophan is critical for the production of serotonin and...
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L-Tyrosine - 100 caps | BioTechUSA
£15.00
Tyrosine is not an essential amino acid, so our body is capable of producing it – even though in very small quantities – from phenylalanine essential amino acid. It can...
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