What is Priorin Intense? Priorin Intense is a food supplement containing biotin, oily millet extract, calcium and cystine.- Biotin contributes to the maintenance of normal hair.- Biotin contributes to the protection of normal skin.- Biotin contributes to normal energy generation metabolism. Features of Priorin Intense :- 60 capsules in pack- Country of origin, Spain- Importer company Bayer