KÉRASTASE Nutritive 8H Magic Night Serum — overnight hair serum for dry hair, anti-frizz & shine

KÉRASTASE Nutritive 8H Magic Night Serum is an overnight leave-in treatment that deeply hydrates and detangles dry hair while you sleep, reducing frizz and boosting shine by morning.

Designed for hair prone to dryness, this lightweight serum blends plant-based proteins and niacinamide to replenish moisture, smooth lengths, and protect strands from pillow friction. It absorbs without leaving residue on bedding and works best as part of a nighttime routine alongside your favorite conditioner or mask. Apply before bed, leave in overnight, and wake up to softer, more manageable hair with enhanced shine.

How does this overnight serum improve hair by morning?

The formula works throughout eight hours of sleep to deliver targeted hydration and detangling to lengths and ends. Plant-based proteins help reinforce the hair surface while niacinamide supports moisture retention, delivering visible softness and reduced frizz within one night.

• 8-hour leave-in action for continuous hydration.
• Detangles to minimize morning breakage and brushing damage.
• Controls frizz and smooths cuticles for a shinier finish.

Will this serum weigh my hair down or leave pillow stains?

The serum is formulated to absorb into hair fibers without leaving heavy buildup or transferring onto bedding. Its lightweight texture nourishes mid-lengths and ends rather than coating the scalp, so hair remains bouncy and clean-feeling by morning.

• Non-greasy, fast-absorbing texture for light hydration.
• Designed to avoid pillow transfer when used as directed.
• Apply one to two pumps to ends and lengths only—no rinsing required.

How should I incorporate the 8H Magic Night Serum into my routine?

Use the serum three nights a week or as needed for extra moisture. Work one to two pumps into dry or damp mid-lengths and ends before bed, sleep on a satin pillowcase if preferred, and style as usual in the morning without rinsing.

• Apply 1–2 pumps to lengths and ends before sleeping.
• Leave in overnight and do not rinse; repeat up to three times weekly.
• Combine with conditioner or mask from the Nutritive collection for deeper care.

What ingredients deliver the nourishment and how do they help?

Key actives include plant-derived proteins that replenish and strengthen the hair surface, plus niacinamide to help lock in moisture. The composition targets dehydration and frizz without overly silicones-heavy coating, prioritizing lightweight restoration and manageability.

• Plant-based proteins: reinforce and nourish hair structure.
• Niacinamide: supports sustained moisture retention.
• Lightweight emollients: smooth and add shine without heaviness.

Who is this for: KÉRASTASE Nutritive 8H Magic Night Serum suits anyone with dry, brittle, or frizz-prone hair who wants an easy, low-effort overnight treatment. It’s ideal if you need targeted hydration for mid-lengths and ends, prefer leave-in overnight care that absorbs cleanly, and want to wake to softer, more manageable hair. For best results, use alongside other Nutritive products—conditioner or mask—and protect hair from daytime heat to maintain strength and shine. This serum is compatible with most hair types that require added moisture; avoid applying to the scalp if you have an oily scalp to prevent excess buildup.

Ingredients

Aqua / Water, Dimethicone, C13-16 Isoalkane, Niacinamide, Glycerin, Polyacrylamide, Phenoxyethanol, C13-14 Isoalkane, Laureth-7, Panthenol, Ascorbyl Glucoside, Butylene Glycol, Linalool, Hydroxycitronellal, Benzyl Salicylate, Benzyl Alcohol, Hexyl Cinnamal, Citronellol, Hydrolyzed Wheat Protein, Alpha-Isomethyl Ionone, Coumarin, Hydrolyzed Corn Protein, Hydrolyzed Soy Protein, Limonene, Iris Florentina Root Extract, Citric Acid, Ci 19140 / Yellow 5, Ci 14700 / Red 4, Parfum / Fragrance.