OptiMSM™ is a highly purified form of MSM, short for methylsulfonylmethane.
It provides sulphur, an element naturally found within the amino acids that help form keratin. Inside KiriGlow™, OptiMSM™ joins Functional Keratin™, Hydrolysed Marine Collagen, biotin, zinc and copper as part of our carefully considered hair, skin and nail formula.