Can repair products actually repair hair? Does New Wash repair damage?

No topical product can repair your hair - not ours, not Olaplex, not any bond-builder. The hair shaft is a non-living keratinized protein structure with no blood supply, no cellular metabolism, and no capacity for biological regeneration. Repair requires living cells. What products marketed as "repair" actually do, at best, is coat the cuticle surface with a polymer or protein fragment that temporarily improves appearance and feel. When the coating washes away, the damage is exactly where it was. On hydrolyzed keratin in New Wash: It is in the formula and does provide a temporary surface cosmetic benefit. The honest context: most customers arrive at New Wash with hair already stripped by years of detergent shampoo. The keratin provides a cosmetic bridge while new, unstripped hair grows from the follicle. We use it because the consumer arrives carrying damage the product didn't cause - not to mask a problem we're creating. On Bond Serum and Bond Boost: These use ProTarget Technology - a liposome delivery system that targets compromised areas of the hair fiber. Within the fiber: a clinically proven complex with itaconic acid and arginine works on disulfide bonds damaged by chemical treatments. On the cuticle: panthenol and ceramide NP replenish moisture. This is a real technological distinction and a real cosmetic effect - described accurately as a cosmetic claim, not biological repair. What New Wash does is more fundamental: it stops the mechanism that keeps damaging hair in the first place.