Philip KingsleyOvernight Scalp Barrier Serum
Product Description
Fast-absorbing and skincare-inspired, Overnight Scalp Barrier Serum is designed to support and strengthen the scalp's natural skin barrier function. Working with your skin's circadian rhythm while you sleep, it helps to create a healthy, balanced scalp environment, support long-term scalp health and minimise the onset of scalp issues.
WHY USE IT:
The scalp is essentially an extension of the skin on your face, and, as with the skin on the face, has a skin barrier to help protect and keep it healthy. Yet this protective barrier is easily disrupted through over-exfoliation, environmental pollution, dry climates, UV exposure, stress, harsh products and ageing, and when this happens, scalp issues (like dryness or dandruff) can take hold. The soothing formulation is powered by a pioneering Triple Balancing Action, which fortifies scalp health in three ways: improves hydration, regulates oil production and balances microflora.
WHO IS IT FOR?
Suitable for all scalps and hair textures. The formula will help to maintain scalp health with no concerns, as well as benefiting those who experience mild, intermittent flaky patches, excessive oil, dryness and mild irritation, due to its barrier strengthening and balancing qualities.
WHY USE IT:
The scalp is essentially an extension of the skin on your face, and, as with the skin on the face, has a skin barrier to help protect and keep it healthy. Yet this protective barrier is easily disrupted through over-exfoliation, environmental pollution, dry climates, UV exposure, stress, harsh products and ageing, and when this happens, scalp issues (like dryness or dandruff) can take hold. The soothing formulation is powered by a pioneering Triple Balancing Action, which fortifies scalp health in three ways: improves hydration, regulates oil production and balances microflora.
WHO IS IT FOR?
Suitable for all scalps and hair textures. The formula will help to maintain scalp health with no concerns, as well as benefiting those who experience mild, intermittent flaky patches, excessive oil, dryness and mild irritation, due to its barrier strengthening and balancing qualities.
Directions
Apply in the evening, the day before you wash your hair.
Fill the pipette by pressing down on the top of the dropper. To dispense, gently press again.
Apply directly to the scalp in 4-5 sections, using 2-3 drops per section.
Massage gently over your scalp. Expect a soothing sensation. Do not rinse.
Upon waking, wash and style as usual.
HOW OFTEN SHOULD YOU USE IT?
For best results, repeat every evening if you wash your hair daily or the night before hair wash day.
Ingredients
Aloe Barbadensis Leaf Juice, Aqua/Water/Eau, Propanediol, Betaine, Polysorbate 20, Lactic Acid, Hamamelis Virginiana (Witch Hazel) Water, Benzyl Alcohol, Glycerin, Hexylene Glycol, Saccharide Isomerate, Capryloyl Glycine, Hydroxyethylcellulose, Sodium Hydroxide, Menthol, Menthyl Lactate, Ethylhexylglycerin, Piroctone Olamine, Sarcosine, Xylitylglucoside, Phenoxyethanol, Avena Sativa (Oat) Kernel Oil, Citric Acid, Sodium Citrate, Tocopherol.
This list of ingredients may be subject to change, please consult the packaging of the product purchased.
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Rated 5 out of
5
by
Rebecca B. from
A great product which works
A great product which works overnight to reduce flakes. I used this in combination with the shampoo and scalp toner which has worked wonders for my dry scalp caused by psoriasis. The serum has a soothing effect and is not too heavy to wear overnight. Once washed out, it leaves the hair looking clean and healthy.
Date published: 2026-09-21
Rated 5 out of
5
by
Jennefer F. from
Helping with Dandruff and Itchy Scalp
I have noticed a reduction in my dandruff, which also helps with the itchiness I experience. I'm really pleased with the pipette as this reaches your scalp. , I have short hair so this helps greatly with the application. I also like that it doesn't feel greasy and heavy like some products do. I will continue to use this serum as it is helping my scalp and hair.
Date published: 2026-09-15
Rated 5 out of
5
by
Helen F. from
Great Product
It immediately calmed my scalp although when you get to the bottom it’s hard to get the serum out with the pipette. It is now firmly in my scalp treatment regime. A great product!
Date published: 2026-02-11
Rated 5 out of
5
by
Dianna R. from
Game changer
This is a game changer for dry itchy scalps soothes and reduces the scaling fabulous product
Date published: 2026-02-02
Rated 5 out of
5
by
Anna L. from
I really love this product.
I really love this product. My scalp is super sensitive and this serum is making it feel a lot better. I was also pleasantly surprised with the application process, it's less messy than I was expecting and after sleeping with it, my hair doesn't look all that bad, so I'm ok getting some things done (eg groceries or running) before hopping into the shower.
Date published: 2025-12-28
Rated 5 out of
5
by
Kelly P. from
Absolutely brilliant
Philip Kingsley’s Overnight Scalp Serum is absolutely brilliant. From the very first use, my scalp felt calmer and more comfortable by morning. It instantly soothes irritation and really helps reduce itching and dryness without feeling heavy or greasy.
What I love most is how lightweight it is, it absorbs quickly and doesn’t leave residue, so it’s easy to use overnight without worrying about product build-up or messy pillows. After regular use, my scalp feels healthier, balanced, and far less irritated.
After trying so many products that didn’t work, this serum genuinely stands out. It actually treats the scalp rather than masking the problem. I wouldn’t be without it now and highly recommend it to anyone dealing with scalp issues.
Date published: 2025-12-23
Rated 5 out of
5
by
Briony W. from
This is excellent!
Have seen a genuine improvement almost overnight! My scalp is usually by the end of wash day, but through using this serum I can feel and see a difference immediately.
The application pippet is easy to use and allows for you to put as much as you need and in different areas, meaning the product is spread out over the scalp making it easy to distribute evenly.
Date published: 2025-12-21
Rated 5 out of
5
by
Nigel B. from
This super serum, like most
This super serum, like most PK products, works as described. My hair feels incredibly smooth, and my scalp appears more nourished, all thanks to the Overnight Scalp Barrier Serum.
Date published: 2025-12-20
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