The LUX Super Rich Shine Relax Night Care Smoothing Shampoo was designed around a specific insight: that a significant portion of the damage making hair puff and fray happens not during the day but at night, from hours of hair-against-pillow friction. The formula is positioned as a night-care ritual rather than just a daily wash — a shampoo that preps hair to survive sleep rather than simply cleaning it. The base is 80 percent beauty serum (water included, minus preservatives and stabilizers), which is a notably rich ratio for a mass-market shampoo. Hydrolyzed silk and argan oil work as repair and smoothing agents, while lavender extract adds both moisture and the calm, sleep-adjacent scent the line is built around. The fragrance — a composed blend of water lily and lavender — is soft and grown-up, distinctly more spa than floral candy. Reviewers consistently note the foam quality: fine, dense, and easy to work through even thicker hair without needing to double-shampoo.