Best Hair Serums UK 2026 | Compare Prices

109 results

We compared 109 hair serums available in UK to bring you the best for 2026, ranked by rating, value and how many shoppers would buy again.

Our top picks

  1. 1
    Beauty Works Argan Serum
    Beauty Works Argan Serum

    Rated 4.8/5 from 383 reviews — from £11.90.
  2. 2
    Kérastase Resistance Therapiste Serum
    Kérastase Resistance Therapiste Serum

    Rated 4.8/5 from 308 reviews — from £52.00.
  3. 3
    Kérastase Genesis Serum Anti-Chute Fortifiant Hair Oil
    Kérastase Genesis Serum Anti-Chute Fortifiant Hair Oil

    Rated 4.7/5 from 610 reviews — from £23.50.
  4. 4
    Kérastase 2% Pure Hyaluronic Acid Scalp & Hair Serum
    Kérastase 2% Pure Hyaluronic Acid Scalp & Hair Serum

    Rated 4.9/5 from 101 reviews — from £52.00.
  5. 5
    Kérastase Symbiose Intensive Anti-Dandruff Cellular Night Serum
    Kérastase Symbiose Intensive Anti-Dandruff Cellular Night Serum

    Rated 4.9/5 from 115 reviews — from £52.00.
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Hair Serums — frequently asked questions

Which are the best hair serums?
Beauty Works Argan Serum is one of the highest-rated hair serums on GlamGeek, scoring 4.8/5 from reviewers. Compare it against other top picks above to find the right one for you.
How much do hair serums cost?
hair serums on GlamGeek range from £5.00 to £178.00, depending on the brand and formulation. We compare live prices so you can find the best deal.
How do you choose the best hair serums?
We rank hair serums using real reviewer ratings, how many people would buy again, and live prices across retailers — not paid placements. The picks update as new reviews and prices come in.

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