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Living Proof

PhD Night Cap Overnight Perfector

SKU# MUK200020505

This item is currently not available.

PhD Night Cap Overnight Perfector is rated 4.2 out of 5 by 5.
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Revive neglected and damaged hair with the help of the Living Proof PhD Night Cap Overnight Perfector. It works to revitalise dry, unruly, and coarse hair to leave the locks looking and feeling soft and glossy. The effects last for up to five washes, so you are always camera-ready.

Formulated with Living Proof’s patented Healthy Hair Molecule and cuticle sealing technology, protective amino acids help keep hair safe from everyday pollutants and heat styling, while the cuticle sealing technology works to make hair shiny and lustrous.

Just apply the PhD Night Cap Overnight Perfector before going to bed, and wake up with perfect hair that is a pleasure to style. The fast-absorbing formula works to ensure every inch of the hair is nourished and revived.

Give hair the kiss of life with the Living Proof PhD Night Cap Overnight Perfector. It helps to revitalise and revive distressed and damaged hair, making it soft, glossy, and healthy.
Key Benefits:
  • Contains time release conditioners to hydrate hair
  • Helps keep hair shiny for up to five washes
  • Works to lock colour in the hair
  • Helps make hair vibrantly soft and bouncy
  • Works to impart a glossy appearance to each strand
  • Does not contain sulphates or parabens
How to Apply

Wake up to beautiful, healthy looking hair. This fast-absorbing, pillow-safe formula is so genius, it works while you sleep.

Use before bed. Apply to damp or dry hair. Start with 2-3 pumps. Spread product between hands. Evenly distribute from root to tip, focusing on ends. Use more depending on hair thickness or length. Comb through and leave on overnight. Style or wash out in the morning.

Use as often as needed. Fast absorbing. Pillow safe.


Free on all orders, over £40
Delivery within 2-4 working days.* (Please note, during Sale periods and promotional offers this may take up to 7 working days).

Free on all orders over £70*
Order before 2pm, and receive your order the next working day.**

Order before 2pm, and receive your order on the morning of the next working day.**

Order before midday (Monday to Friday only) and receive your order by 6pm the same day. Only available for central London postcodes (check the map here).

Order before 2pm on the preceding Friday, and receive your order before 12pm the following Saturday.**

Order before midday and collect your order for free from your chosen store in 2-5 days.
Read more about our Click & Collect service.
Click and Collect orders can not include Pre/Back order items, these must be ordered separately.

Delivered instantly by email, Free Delivery

If you'd like to send your order as a gift, we can add a beautiful finishing touch with our limited edition Christmas gift wrap. Choose complimentary gift wrap at checkout.

*This option is available for all UK Mainland addresses, excluding the Scottish Highlands and other parts of Scotland.

About Living Proof
Haircare and styling products that utilise patented lab-developed technology to improve hair health over time, delivering stronger, glossier locks.

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What other customers think
PhD Night Cap Overnight Perfector is rated 4.2 out of 5 by 5.
Rated 5 out of 5 by from LOVE THIS This is the first living proof product I have used and I have to say I am impressed! I love using a pre-wash hair mask as I feel there is less messing around. You apply this to dry hair and it seems to just sink into your hair without leaving any sticky residue causing greasy hair. I usually put this on the night before I wash my hair then either wash it out in the morning or leave it on all day. My curls look voluminous and well formed after i've used it and my hair smells like ive just been to a hair salon. Love it!
Date published: 2019-02-16
Rated 5 out of 5 by from Awesome! This thing is surprisingly good (for pre-wash product)! Unlike many others it really works and makes my long, prone to dryness, tangles and frizz hair so shiny and manageable! Easy to apply, non-sticky at all and have really pleasant scent (like other Living proof products). The only thing maybe that is downside for me is the huge amount nedeed for every application. But it worth it all the same)
Date published: 2019-01-02
Rated 5 out of 5 by from I love this stuff! I love this product. I use it in conjunction with the PHD shampoo and the conditioner about twice a week. I simply wash and condition my hair then apply about two to three pumps of the night cap and let my hair air dry. The next day I rinse it out. It has improved my split ends and truly hydrated my hair. It might take some getting used to as the useage is unique.
Date published: 2018-12-17
Rated 1 out of 5 by from Unpleasant This does nothing for my hair, except make it feel and look a bit greasy and intensely perfume it. Even after repeated use, the only effect I got from this was that my hair felt like I'd bathed it in pure silicone. A very useless, unpleasant product in my opinion.
Date published: 2018-06-22
Rated 5 out of 5 by from Game changing I have quite dry hair - it's highlighted, thick and long, and it can be a pain for getting knotted and tangled as a result. I have tried various pre-washes, and many of them are very good: but it feels like a hassle, after a while, wetting your hair, applying product, going away for an hour or overnight, and I tend to lose interest. The perfector is different, completely: you can apply the night before, to dry hair, go to bed and just wash your hair in the morning. Even better, you can put it on your hair all day, and wash at night - and this really is innovative: it doesn't make your hair look greasy or wet, so you can't physically see it. You might think this would mean it's not very effective - but in fact, it's brilliantly good: it's hard to see how something so light and simple can leave hair so nourished and smooth. It's very easy to wash out, but leaves hair - even without conditioner - smooth and tangled free, and it helps to protect any colour as well. Ordinarily, I struggle after washing my hair, in terms of dragging my brush through all the snarls - the perfector has put an end to all of that. I use conditioner to have extra nourishment, but those with less damaged hair probably won't need to - and my hair looks as though I've just come from the hairdressers. Not just on wash day, either, but all week - so this is an absolute game changer as far as I am concerned: incredibly straightforward and hassle-free to use, and outstandingly effective.
Date published: 2018-05-22
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