The Repair & Strengthen 7 range from TRESemmé visibly repairs hair externally and internally, protecting it against 7 types of damage: drying, straightening, coloring, curling, bleaching, brushing, and braiding. Its formula with biotin and pro bond complex contains a patented blend of molecules that visibly restores your hair in just one use. Continuously, it repairs each hair fiber from the inside, leaving a damage-proof mane. Use of Repair & Strengthen 7 shampoo and conditioner vs. shampoo without conditioner. Gently washes and repairs the hair fiber from the inside thanks to its patented formula with biotin and pro-bond complex. The effect: restores vitality to the hair, both on the outside and on the inside, so that it regains its strength and shine. Apply TRESemmé's Repair & Strengthen 7 shampoo to wet hair and gently massage the scalp with your fingertips from the roots to the ends until it foams. Rinse thoroughly and finish with TRESemmé's Repair & Strengthen 7 conditioner. For extra care, replace the conditioner with a mask once a week or as often as necessary. Use TRESemmé's Repair & Strengthen 7 heat protector to protect your hair up to 230ºC from damage caused by heat appliances such as flat irons or hair dryers.