Our body needs amino acids (components of proteins) that it cannot synthesize on its own, for what is provided externally. One of these essential amino acids is tryptophan, the precursor of serotonin (happiness hormone). An external supply of tryptophan helps to improve our condition This is why it is a great ally in spring asthenia. VITAMINS OF GROUP B, MAGNESIUM AND SPIRULINA Group B vitamins (niacin, pantothenic acid and vitamin B6) and magnesium help us overcome tiredness and fatigue, since they regulate our body's energy. It contributes to the normal functioning of the nervous system and normal psychological function. This benefit is multiplied by the presence of spirulina, a seaweed considered a macronutrient because of its great nutritional contribution. MELATONIN Tryptophan is involved in the formation of melatonin, also known as the sleep hormone.