What it is: A set of four hair-care essentials that help reverse damage.Who it's for: Ideal for all hair types. Safe for chemically treated and color-treated hair.Set includes:- Travel-size Restore Shampoo (2 oz.): a gentle shampoo that's the first step to making dry, damaged hair look and feel visibly healthier- Travel-size Restore Conditioner (2 oz.): a nourishing daily conditioner that renews softness, shine and manageability- Travel-size Perfect hair Day Healthy Hair Perfector (2 oz.): a lightweight treatment that transforms dry, damaged hair by restoring its outermost protective layer to leave strands softer, shinier and smoother- Travel-size Triple Bond Complex Hair Strengthener (0.33 oz.): a weekly bond-building treatment that makes hair 8x stronger and more resistant to future damage while adding softness, smoothness and shineHow to use: Start with the Restore Shampoo and Conditioner. Then apply the Triple Bond Complex to damp hair, wait 10 minutes and blow dry. Apply PhD Healthy Hair Perfector to damp or dry hair. Use as needed. Paraben-free; phthalate-free; sulfate-free; silicone-free; formaldehyde-free Cruelty-free