Nutritive 8H Magic Night Serum — Reddit Reviews
by Kérastase
Updated November 5, 2026
Lightweight overnight lotion leaves dry, fragile hair noticeably softer by morning.
What the community says
A lightweight overnight hair lotion with glycerin, dimethicone, panthenol, and niacinamide softens dry, fragile lengths by morning. Fine-haired users like the light feel, but repeated complaints say it can worsen dryness and shedding.
What this means for you
What people love
Watch out for
- Can leave hair feeling drier
- Shedding complaints from some users
Product details
Based on limited Reddit discussion so far
Where to buy
Real Reddit threads — 6 mentions across 4 threads
Kérastase Nutritive 8H Magic Night Serum on Reddit, in one place — 4 threads from r/Haircare and r/finehair, summarized.
“Holy Grail: kérastase nutritive 8h magic night serum. I have dry hair and this makes my hair so soft!”
Positive
“I also use the Nutritive 8H Magic Night Serum at night.”
Positive
“It's more like a light weight lotion. I use it at night and it left my hair so soft in the morning.”
Positive
“I recently bought the Nutritive 8H Magic Night Serum and I really like it.”
Positive
“that 8h magic serum is already a great start for the fragile front pieces, i'd keep that up”
Positive
“I recently bought the Nutritive 8H Magic Night Serum and I really like it.”
Positive
“My hair is: Fine (very thin strands) ... Breaks very easily (it doesn't shed much, it just snaps)”
Positive