20% Off Kerastase* | Shop Now

 

Skincare
Makeup
Haircare
Body
Specials
logo
logo

Search brands, products, articles...

This Serum Is Magic, But It’s Not For Your Skin

Hannah Furst
by Hannah Furst
Updated:
20 Aug 2026
I'm Adore Beauty's resident beauty newbie. Before working at Adore, I was travelling the world for 4 months with just one tiny tube of Jurlique moisturiser. I washed my face with warm water and used olive oil as a deep conditioning treatment. Oh, how things have changed!
Kérastase 8HR Magic Night Serum delivers silkier, frizz-free hair by morning, working over an 8 hour period thanks to Iris Root extract and a blend of five vitamins including vitamin E. This review covers how it performs on dry and damp hair, who benefits, the lightweight creamy texture and the evolving fragrance that shifts from calming to energising.

Top Insights From This Guide

  • Wake up with softer, frizz-free hair after 8 hours using Kérastase 8HR Magic Night Serum.
  • Use one pump on dry or damp hair to detangle, boost shine and seal cuticles by morning.
  • Hydrates fine hair without weighing it down and improves manageability for normal to coarse hair.
  • Contains Iris Root extract plus a blend of five vitamins including vitamin E for nourishment.
If you battle morning frizz, limp curls or stubborn tangles, this serum can simplify morning styling and improve manageability. Test a small section first, then apply one pump to dry or damp hair to find your preferred finish, from defined curls to a glossy, straight look.
This serum is actually magic. And for those of you who skipped the title of this article, it’s not for your face.
The phrase “magic serum” gives me mixed feelings. On the one hand, I am sceptical about hyperbolic claims, but on the other hand, I feel warm and fuzzy and want to try it immediately. 
When Kérastase’s 8HR Magic Night Serum landed on my desk, I was indeed sceptical. I am much more interested in magical face serums that erase fine lines, give me a plumped-up glow or help me look like I’ve had a solid eight hours of sleep. 
Because in all honesty, there is no amount of beauty wizardry that can make my wild hair manageable. Well, so I thought…

The Back Story:

To tell you the truth, I wasn’t even going to write this article. I took the serum home, and just as I was about to pop it into my cupboard with about a dozen other unused hair products, I scanned the bottle. 
Maaaaagic…. The word instantly put me under a spell. In my hypnotised state, I ran one pump through my dry hair and headed to the couch to watch The Handmaid’s Tale. After the episode finished, I ran my fingers through my hair. What. The. Hell. Just. Happened? 
adore beauty article image

What Happened?

Despite my initial scepticism, I’m going to give it to Kérastase – this serum is legitimately magic. Even an hour later, my hair felt silky and soft. A few days later, I tried the serum on damp hair, and slept in it overnight.
Rather than the frizzy bird’s nest I usually encounter upon rolling out of bed, this time I woke up with bouncy curls, which straightened effortlessly into a super sleek, glossy bob à la Kim K. No other products required! I immediately reported my findings to our Beauty Editor and started writing this article.
adore beauty article image

The Important Deets:

Did I mention the scent? It has an evolving fragrance that promotes sleep at night and energy in the morning – imagine a really clean, almost soapy (in a good way) fragrance. Seriously, if that’s not magic, I don’t know what is.
  • It has a lightweight, creamy texture for dry hair types of all textures 
  • The nutrient-rich formula deeply penetrates the hair fibre for optimum absorption
  • It works over an 8 hour period so you wake up with softer, smoother hair 
  • The key ingredient, Iris Root extract, nourishes hair & adds a film over the surface
  • Features a blend of five hair-loving vitamins (including protective vitamin E)
  • Helps to seal the cuticle of the hair and adds a soft, satin finish
adore beauty article image

Who’s It For?

For curly hair types: this serum provides definition and softness to curls 
For fine hair types: it hydrates and detangles hair without weighing it down
For normal to coarse hair: it improves manageability for easier styling
adore beauty article image

How To Apply: 8H Magic Night Serum

Adore Beauty Acknowledges the Woiwurrung language group of the Eastern Kulin Nations as the Traditional Owners of the land our Customer Fulfillment Center and Head Office conduct our business operations on. We would like to extend that Acknowledgement and Respect to all First Nations People and Elders across Australia as our parcels travel across their land, air and water. We recognise First Nations Peoples continuous relationship and connection to Country and at Adore Beauty we commit to treading lightly on the land our parcels travel. We pay our respects to Elders past, present and future.

Shop with Confidence - Hassle-free 90 day returns
partners
CONNECT WITH US
currentOption

New Zealand

Terms & Conditions & Privacy Policy. © Adorebeauty – All Rights Reserved
Build id: