Serine

Proline

Non-essential, proteinogenic amino acid derived from ornithine and glutamine. Mainly present in proteins and collagen

Threonine

Essential proteinogenic amino acid and precursor of glycine, which is a component of connective tissue, cartilage, skin, hair, teeth, bones, tendons and muscles. Contributes to glutathione formation

Glycine

Semi-essential proteinogenic amino acid, precursor of the important antioxidant glutathione. Component of connective tissue, cartilage, skin, hair, teeth, bones, tendons and muscles

Tryptophan

Tryptophan is an essential, protein-forming amino acid