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L-Ornithine is distinct from L-Arginine and L-Citrulline as it is not involved with nitric oxide production, but L-Ornithine buffers ammonia reducing fatigue associated with exercise

Abstract Recent reports indicate that intracellular levels of NAD decline in tissues during chronological aging, and that therapies aim at increasing cellular NAD levels could have beneficial effects in many age-related diseases

Molecular Structure AHK-CU consists of alanine, histidine, and lysine bound to copper

On the other hand, GH via its stimulation of local IGF-I is important for testicular production of testosterone and spermatogenesis (79), and the local IGF-IGFBP-axis is involved in selection and growth of the primary follicle in the ovary, estradiol production and ovulation (80, 81)