What it is: . A leave-in overnight serum designed to target the five signs of hair aging-thin, frizzy, flat, dry, and dull hair-in one night. Hair Texture: Straight, Wavy, Curly, and Coily. Hair Type: Fine, Medium, and Thick. Hair Concerns: - Thinning. - Dryness. - Damage, Split Ends, and Breakage. Key Benefits: . - Intensely hydrates and smooths, reviving dry and dull hair overnight. - Increases the look of hair-fiber diameter for boosted thickness and body. - Provides 450F heat protection and aids detangling for seamless styling. Highlighted Ingredients: - Pro-Xylane: Known for its anti-aging properties to strengthen and protect hair. - Ochrophyta Algae: Known for its regenerative and revitalizing properties. Ingredient Callouts: Free of mineral oil and Sulfates SLS & SLES. What Else You Need to Know: Wake up to visibly fuller, smoother, and healthier hair with the Chronologiste Overnight Youth Serum. This luxurious leave-in formula targets the five signs of hair aging. It intensely hydrates, smooths, and builds body from root to tip while providing 450F heat protection. Fragrance Description: Top notes: bergamot, orris, green notes; Middle notes: freesia, rose, marine notes; Base notes: musk accord, white flowers, patchouli orpur from Indonesia. Clinical Results: In an instrumental test after 1 use of the Overnight Youth Serum: - 92% more strength. - Increases hair-fiber diameter by 5.7%. -66% less frizz. - 32% more shine. Size: 3 FL Oz. Color: None. Gender: unisex. Age Group: kids. Material: OTHER MATERIAL.