Wake up to softer, shinier, smoother hair.
Kérastase Nutritive 8H Magic Night Hair Serum is a luxurious overnight hair treatment for dry, frizzy and damaged hair that works while you sleep. This lightweight, fast-absorbing leave-in serum provides 8 hours of overnight nourishment to help hydrate, smooth and strengthen hair—without leaving it greasy or weighing it down.
Powered by Niacinamide (Vitamin B3) and plant-based proteins, 8H Magic Night Serum helps replenish dry hair, reduce frizz and tangles, and improve manageability so hair feels noticeably softer and looks healthier by morning.
Why You'll Love It
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Provides 8 hours of overnight nourishment
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94% of users felt hair was shinier and silkier
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94% experienced less frizz
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Deeply hydrates dry and damaged hair
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Helps smooth frizz and flyaways
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Detangles for easier morning styling
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Helps strengthen the hair fiber against future breakage
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Lightweight, fast-absorbing formula
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Won't leave hair feeling greasy or heavy
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No rinsing required in the morning
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Suitable for fine, medium, thick and coarse hair
How to Use
Apply 2–4 pumps before bedtime to dry or damp hair, adjusting the amount based on your hair's length, thickness and level of dryness.
Work the serum between your hands and distribute evenly through the mid-lengths and ends.
Leave in overnight while you sleep. No rinsing is required in the morning. Simply wake up and style as usual.
3 Ways to Use 8H Magic Night Serum
Overnight Hydration – Apply through the mid-lengths and ends before bed to nourish dry hair while you sleep.
Anti-Frizz Night Treatment – Smooth through dry or frizz-prone areas at night for softer, more manageable hair in the morning.
Heatless Styling Prep – Apply before braiding, twisting or using your favorite heatless curl method overnight. Wake up to nourished hair with effortless texture and movement.
Who Is It For?
Perfect for anyone looking for:
Dry hair • Frizzy hair • Damaged hair • Dull hair • Tangled hair • Color-treated hair • Heat-styled hair • Fine to coarse hair • Overnight hydration • Softer, shinier hair
Key Ingredients
Niacinamide (Vitamin B3) – Helps strengthen the hair fiber while supporting moisture retention and improving the feel of dry, damaged hair.
Plant-Based Proteins – Deliver essential amino acids to help nourish the hair and improve moisture retention for lasting hydration.
Your Beauty Sleep for Your Hair
Think of Kérastase 8H Magic Night Serum as nighttime skincare for your hair. Apply it before bed and let the lightweight formula work while you sleep—helping replenish moisture, control frizz and improve softness without adding another step to your morning routine.
Kérastase Nutritive 8H Magic Night Serum is the overnight leave-in hair treatment for softer, smoother, shinier and more manageable hair by morning.