Sulphur is an element with an intense yellow colour. It can be associated with the smell of an extinguished match, where it is a component of the wood head. Sulphur performs significantly important tasks. It is involved in many important processes : in the synthesis of amino acids and enzymes.

It is a component of collagen, regulates the endocrine and circulatory systems, and is responsible for metabolism. Sources of sulphur from food include onions, garlic, eggs, milk and meat. There is also an organic form of sulphur - MSM, or methylsulfonylmethane. This form of sulphur can be found in the dietary supplement Zein Pharma - MSM, OptiMSM.