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This Overnight Hair Serum Works to Repair Dull and Dry Strands While You Sleep

Megan Miloshis
by Megan Miloshis
Updated:
25 Mar 2026
I am the Content Manager here at Adore Beauty. I have been a makeup artist for over 6 years now and love all things beauty.

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In Partnership With Wella.
After fifteen years of foils, balayages, and lightening services, I’m no stranger to the trials of dry, damaged hair.
While my strands are fine, I have a lot of them, which creates the perfect opportunity for my hair to turn into a tangled, knotty mess, especially after a good night’s rest.
If there’s one thing I’ve learned, it’s that a well-thought-out haircare routine is key to keeping my locks in line.
However, I am not the type for a 10-step hair routine before bed, as my skincare routine keeps me busy enough.
With that in mind, when the Wella Ultimate Repair Night Serum came across my desk, I was very intrigued by the results it promised, as they seemed to speak to pretty much all of my frizzy, knot-prone, damaged hair concerns.
Add in the fact that I love seeing results, and fast, and I had to give it a go.
For anyone who enjoys a spoiler, this new Wella hair serum might just be one of my new favourite nighttime hair heroes.

What Is the Wella Professionals Ultimate Repair Night Serum?

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This leave-in overnight serum works to visibly correct dullness, dryness, and breakage. Think of this as the PM face moisturiser you can’t live without, but for your hair.
Here are some fast facts:
  • Leave-in overnight serum that works to repair and strengthen hair whilst you sleep.
  • Suitable all hair types and textures but is ideal for dry or damaged hair.
  • Has a lightweight gel texture and a luxurious fresh scent.
  • Is infused with AHA and Omega-9 for deep repair.
  • Polymers in this hair treatment for dry hair helps protect against frizz and breakage.
  • Helps reduce breakage and improve hair resilience.
  • Softens, smooths, and enhances shine.
  • Is colour-safe, vegan and cruelty-free.
  • Wake up to noticeable results, frizz control and up to 6x smoother hair* after one night.
*vs. non-conditioning shampoo.
Key Ingredients:
Alpha-Hydroxy-Acid: Works to rebuild hair bonds from the inside. An organic acid, small enough to penetrate the hair fiber at the deepest level. Rebuilding hydrogen bonds in the cortex, for a strong hair core.
Omega-9: Replenishes the outside of the hair. A bio-identical lipid, targeting the outside of the hair fiber. Coating the surface and filling in the cuticle to re-create a protective barrier.

How to Use the Wella Ultimate Repair Night Serum?

Apart from the amazing scent, one of my favourite things about this serum is how versatile it is - you can apply it to wet or damp hair and then let the serum work its magic.
The gel texture blends effortlessly into the hair without weighing it down and there is no need to rinse it out.
Apply 1-3 pumps (depending on your hair length) before bedtime and distribute through your lengths and ends - no need to apply to the roots.

My Wella Ultime Repair Night Serum Review.

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I am a sucker for a well-designed product, and I have to say this serum really does tick all the boxes.
I’ve tried it on both damp and dry hair, and I’ve noticed a real difference in how manageable my hair has been.
My locks are notoriously prone to knotting/tangling, but this serum gives just the right amount of smoothness to keep that under control.
Because of its flexibility, it was super easy to incorporate into my nighttime routine, as it doesn’t require any washing or waiting time after application.
I found that two pumps on damp hair worked perfectly for me, whilst one pump for dry hair dispersed perfectly.
Bonus: I wake up with the best-smelling hair, and I’ve noticed my morning styling routine has been cut down by half.
Less time spent wrestling with tangles = more time to snooze my alarm. I’ll take it.

Final Verdict: Is This Hair Serum for Damaged Hair for You?

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There really isn’t anyone that I can think of that wouldn’t benefit from adding this serum into their routine.
If you’re all about easy, no-fuss haircare that delivers visible results, the Ultime Repair Night Serum is definitely worth a go.
If you’re looking for a simple way to improve your hair's health and texture while you catch some Z’s, this serum’s got you covered.


Discover more of Wella's hero products below:
Megan Miloshis

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