Philip Kingsley Overnight Scalp Barrier Serum Review | SkinSourcer
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Philip Kingsley Overnight Scalp Barrier Serum
No. 08 in Edit 064

Philip Kingsley Overnight Scalp Barrier Serum

Scalp United Kingdom Approx. $44

Aloe first on the list, then lactic acid and witch hazel, then the piroctone olamine pharmacies use for flakes, in a serum you drop onto the scalp the night before you wash. The trichology house wrote it for the scalp barrier; it is the only product on this page built for the scalp rather than the strand.

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Why we like the Overnight Scalp Barrier Serum

  • Aloe first on the list
  • Lactic acid on the scalp
  • Piroctone olamine for flakes
  • Wash it out the next morning
Texture
A fast-absorbing dropper serum
Key ingredients
Aloe leaf juice · Lactic acid · Witch hazel water · Piroctone olamine
Fragrance
Scented with menthol; the list declares menthol and menthyl lactate.
Best for
The night before wash day · Oily or flaky scalps · Two or three drops per section
Works on
Scalp dryness · Oiliness · Flaking
Made in
United Kingdom
Where to buy
Dermstore
Price when checked
$44 on 2026-09-09
Listing checked
2026-09-06

Our verdict on the Philip Kingsley Overnight Scalp Barrier Serum

Scalp only. If you are not washing tomorrow, this is not the night for it.

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Where the Overnight Scalp Barrier Serum sits on The Shelf

Nine overnight hair treatments arranged on a shelf Edit 064 · OVERNIGHT SUCCESS Overnight Success: Hair Treatments Worth Sleeping In Eight hours you were going to spend asleep anyway. Nine products that use them.

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Reviewed 2026-09-06. Philip Kingsley Overnight Scalp Barrier Serum appears in Overnight Success: Hair Treatments Worth Sleeping In. Every product on The Shelf is listed in the product index.