A unique hydrolysed keratin with an unusually high cystine content, ideal for the use within hand, nail, and hair care formulations. Created using a proprietary manufacturing process that keeps cystine in its active S-SO3 form, ProSina has the ability increase the strength and cohesion of the nail plate, moisturise hands, and is able to replenish the proteins that are easily lost from relaxed African hair with matching peptides.
INCI name
Aqua (and) Hydrolyzed Keratin
