PRO BOOST HAIR TREATMENT 0.5OZ. Benefits: Amino acids, antioxidants & pH3 help immediately lock-in color. Previously only available in salons, this highly concentrated formula is full of active ingredients for high performance results. Use after the coloring process, or weekly to preserve color. Apply after shampoo in place of conditioner for vibrant, healthy-looking hair. Cruelty-free: not tested on animals. Sustainable packaging. Made in Italy. Key Ingredients: Prickly pear seed oil and macadamia oil to nourish hair. Amino acids, antioxidants and pH3 help lock in and protect color. Vitamin b5 protects against color fading. Formulated Without: Ammonia. Parabens. Resorcinol. PPD. Phthalates. Gluten. SLS. Titanium Dioxide.