The Double R Radiance & Repair Mask and the Scalp & Hair Youth-Oil-In Serum are combined in a set to reveal hair's youth. Enriched in 4 repairing honeys identified by Guerlain Research and composed of at least 95% naturally-derived ingredients¹, these two cares were created to revive hair's radiance and repair hair's fiber. After 1 month, hair is visibly transformed, stronger and