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Promotes Fat Metabolism. L-Carnitine is synthesized in the liver by humans and has been shown to have a remarkable effect in the cellular metabolism of fat by transferring fatty acids to sources of energy. Natrol offers free-form L-Carnitine in 500 mg potency.

Twinlab L-Glutamine is the most abundant amino acid found in muscle and plasma (accounting for more than 60% of the free amino acid pool in muscle cells). Many top sports nutrition researchers believe that L-Glutamine by Twinlab may be the single most important amino acid in the body for creating muscle tissue growth and protecting the body from overtraining.

L-Arginine is a conditionally essential, free form, basic amino acid involved primarily in urea metabolism and excretion as well as DNA synthesis.L-arginine is an essential amino acid. It is required for the body to synthesize nitric oxide, which enables the arterial system to retain its youthful elasticity. Nitric oxide also helps to produce endothelial relaxation factor, which is needed by the arterial system to expand and contract with each heartbeat.L-arginine has been shown to promote natural growth hormone (GH) release from the pituitary gland. GH promotes healthy anabolic metabolism throughout the body, helping to maintain protein synthesis within cells.

GABA Plus acts as a neurotransmitter in the central nervous system, it is essential for brain metabolism, aiding in proper brain function, anxiety, stress, depression, epilepsy, aging and Parkinson's disease. GABA-Plus is a high potency, scientifically formulated and synergistic combination of amino acid derivative GABA (Gamma Amino Butyric Acid), with Inositol and the vitamin Niacinamide.It can be taken to calm the body without fear of addiction.

Twinlab L-Phenylalanine Capsules are easier to swallow and assimilate. Well tolerated by the most highly allergic individuals. Packaged in a glass bottle for maximum stability, quality and freshness. This product is manufactured at our own state of the art facilities. L-Phenylalanine is an essential amino acid, and Tyrosine precursor that works with vit B-6 on the central nervous system as an anti-depressant and mood elevator.

Free Form Amino Acid. L-Glutamine picks up ammonia in the central nervous system and delivers it to the kidneys for deamination. Can readily pass the blood brain barrier, and sustains mental activity. Reduces an individuals desire to consume alcohol and sugar. Used to protect against the poisonous effects of alcohol, and has been used in treatment of Schizophrenia and senility. Used to treat ulcers and petit mal epilepsy.

L-Theanine is a free-form amino acid found in Green tea that has been shown to provide nutritional support for a feeling of relaxation. Unlike many relaxation products, this formula should not cause drowsiness.

L-Arginine is an essential amino acid necessary for lean muscle mass, increasing sperm count, immune system function, detoxifies amino, liver detoxification and aids in malignant diseases with added Ornitine. Twinlab L-Arginine & L-Ornithine are free form Amino Acids. Twinlab L-Arginine & L-Ornithine Capsules are easier to swallow and assimilate and are well tolerated by most highly allergic individuals.

This is one of eight essential amino acids that are not produced by the body. Amino Acids, the famed building blocks of protein, are essential to the formation of muscle tissue and mass. They have widespread involvement in a range of bodily functions, including efficient brain function and the manufacture of energy. Methionine's antioxidant, tissue-cleansing qualities have also tied it to healthy skin and nails.

Nature's Plus is the first to offer a 100% pure L-Tyrosine capsule together with its synergistic partner, Vitamin B-6. Vitamin B-6 is an integral cofactor in the body's utilization of L-Tyrosine. Amino Acids, the famed building blocks of protein, are essential to the formation of muscle tissue and mass. They have widespread involvement in a range of bodily functions, including efficient brain function and the manufacture of energy.

GABA (gamma-aminobutyric acid) is an important amino acid neurotransmitter in the brain.

Amino Acid supplements and Amino Acid formulas from Twinlab, including the popular fat burning Amino Acids. Research shows that the free form Amino Acid L-Carnitine has a dramatic effect on fat metabolism and the reduction of blood fats. L-Tyrosine plays an important role in the function of the adrenal, pituitary and thyroid glands, and stimulates the release of growth hormone which causes muscle growth and reduces body fat. Amino acids are essential for protein synthesis and many other metabolic functions. Twinlab's free-form amino acids are the purest form of amnio acid available and are absorbed into the bloodstream without need for digestion.