TRESemme Biotin Repair Shampoo 400ml + Conditioner 400ml TRESemme Biotin Repair Shampoo and Conditioner system is specifically designed to visibly repair and heal hair. If you blow-dry, bleach, brush, straighten, colour, braid or curl your hair, it's likely to receive some amount of damage. Formulated with Pro-Bond Plex and biotin, it strengthens each strand of hair inside and out while protecting fibres and restoring broken bonds.