8H Magic Night Serum

by Kérastase Nutritive

Available in Canada at Curious Salons

For

Dry, frizz-prone, dull or dehydrated hair that needs overnight nourishment, softness and lightweight hydration without a greasy or heavy finish.

Description

Kérastase Nutritive 8H Magic Night Serum is a luxurious overnight leave-in treatment created to nourish dry hair while you sleep.

Inspired by nighttime skincare, its lightweight cream-serum formula works for up to eight hours to restore hydration, soften the hair and reduce visible frizz. Anti-dryness polymers help provide immediate care, while niacinamide, glycerin and plant-based proteins support the hair’s protective barrier and replenish essential moisture.

Applied before bedtime, the serum helps protect the hair from friction against the pillow while conditioning dry lengths and ends. By morning, hair feels softer, smoother, more manageable and beautifully radiant—with no need to rinse.

Who It’s For

Ideal for:

• Dry or very dry hair

• Frizz-prone hair

• Dull or lacklustre hair

• Dehydrated mid-lengths and ends

• Hair affected by heat styling or environmental dryness

• Hair that feels rough, stiff or difficult to manage

• Fine, medium or thick hair needing overnight nourishment

What It Does

• Provides overnight hydration for up to eight hours

• Nourishes dry lengths and ends

• Helps strengthen the hair fibre

• Reduces the appearance of frizz

• Improves softness and manageability

• Helps protect hair from pillow friction

• Supports the hair’s natural moisture barrier

• Leaves hair smoother and more radiant by morning

• Absorbs without leaving a greasy or heavy residue

• Requires no rinsing in the morning

When to Use

Apply before bedtime whenever dry hair needs additional hydration, softness and overnight nourishment.

Use nightly or as often as needed as the final step in your evening haircare routine.

It may be applied to dry or towel-dried hair and does not need to be rinsed out the following morning.

How to Use

Dispense one to four pumps into your hands, adjusting the amount according to the length, thickness and dryness of your hair.

Distribute evenly through the mid-lengths and ends of dry or towel-dried hair.

Avoid applying directly to the scalp or roots, particularly on fine hair.

Leave in overnight.

There is no need to rinse in the morning. Style as desired.

Formula

A lightweight, leave-in overnight serum formulated with hydrating humectants, conditioning silicones, plant-based proteins and anti-dryness polymers.

Dimethicone and lightweight isoalkanes help smooth the hair’s surface, reduce moisture loss and protect against friction without creating a heavy or oily feel.

Niacinamide helps support the hair fibre’s protective barrier, while glycerin and panthenol attract and retain moisture to improve softness and flexibility.

Hydrolyzed wheat, corn and soy proteins help condition and reinforce dry, weakened strands. Ascorbyl glucoside and iris root extract complement the formula with antioxidant and conditioning benefits.

The silky cream-serum absorbs into the hair overnight, leaving lengths softer, smoother and easier to manage by morning.

Key Ingredients

Niacinamide
A form of vitamin B3 that helps strengthen the hair fibre’s protective barrier and support longer-lasting nourishment.

Plant-Based Proteins
Hydrolyzed wheat, corn and soy proteins help replenish dry hair with conditioning nutrients while supporting strength, softness and resilience.

Glycerin
A plant-derived humectant that helps attract and retain moisture, improving the formula’s overall hydrating performance.

Panthenol
Also known as provitamin B5, panthenol helps condition the hair while supporting softness, suppleness and moisture retention.

Iris Florentina Root Extract
A conditioning botanical extract that supports the nourishing and sensorial qualities of the Nutritive formula.

Fragrance

Features Kérastase Nutritive’s signature Gold Fever fragrance—a powdery, floral and softly musky scent.

Top Notes: Violet leaves and ylang-ylang
Heart Notes: Wild rose, white jasmine and tonka bean
Base Notes: Sandalwood, cinnamon bark and white cedar

The result is warm, elegant and comforting, creating a beautifully sensorial bedtime ritual.

Why You’ll Love It

Kérastase 8H Magic Night Serum makes it effortless to care for dry hair while you sleep.

Its silky formula provides intensive overnight nourishment without transferring a heavy or greasy feeling to the hair. By morning, lengths feel softer, smoother and more manageable, with reduced frizz and a luminous, well-rested finish.

It is a beautiful addition to any evening routine for hair that needs consistent hydration but does not respond well to heavy masks or oils.

Product Details

• Product type: Overnight leave-in hair serum

• Collection: Kérastase Nutritive

• Hair concern: Dryness, frizz, dullness and dehydration

• Hair types: All types of dry hair

• Texture: Lightweight cream serum

• Finish: Soft, smooth and radiant

• Leave-in formula

• No rinsing required

• Provides eight-hour overnight care

• Helps protect against pillow friction

• Non-greasy finish

• Vegan formula with no animal-derived ingredients

• Bottle made with 20% recycled glass, excluding the cap and pump

• Size: 90 mL

Full Ingredient List

Aqua / Water / Eau, 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.

Ingredient lists may be updated. Please refer to the product packaging for the most current ingredient information.