Paul Mitchell Extra Body Root Boost

Sizes: 75 ml250 ml500 ml

Rated 5.0 out of 5 from 4 reviews

£24.95£9.98 per 100 mlcompare sizes
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Why we rate it

Lift exactly where fine hair falls flat: at the roots. The precision nozzle puts the spray right where you need it, so you can target the crown or the parting without weighing down the lengths. Towel-dry your hair, spray close to the scalp section by section, then blow-dry with a round brush, lifting at the roots as you go. It gives a soft, touchable hold and sets you up for a long-lasting, bouncy blow-dry.

  • Targeted lift where fine hair falls flat
  • Precision nozzle puts product right at the roots
  • Soft, touchable hold
  • Sets you up for long-lasting, bouncy blow-dries
  • Colour-safe

Who it’s for

Hair type

Hold & shine

How to use

  1. Towel-dry hair.
  2. Spray close to the scalp, section by section.
  3. Blow-dry with a round brush, lifting at the roots.

Key ingredients

Panthenol (pro-vitamin B5)
Helps hair hold on to moisture, leaving it softer and shinier.

Full ingredients

Water (Aqua, Eau), VP/VA Copolymer, PPG-5-Ceteth-20, Alcohol, Propylene Glycol, Panthenol, Tocopheryl Acetate, Caprylyl Glycol, Citric Acid, Hexylene Glycol, Linoleamidopropyl PG-Dimonium Chloride Phosphate, Methacryloyl Ethyl Betaine/Acrylates Copolymer, Triethyl Citrate, Laurtrimonium Chloride, Phenoxyethanol, Potassium Sorbate, Parfum (Fragrance), Acetyl Cedrene, Benzyl Salicylate, Citronellol, Citrus Aurantium Peel Oil, Geraniol, Geranyl Acetate, Hexyl Cinnamal, Hydroxycitronellal, Hexamethylindanopyran, Limonene, Linalool, Trimethylcyclopentenyl Methylisopentenol

Ingredients from Paul Mitchell UK · checked 29 September 2026. Formulations can change, so always check the pack.

Good to know

  • Vegan
  • Cruelty-free
  • Colour-safe
  • Paraben-free
  • Made without gluten

Formula claims as stated by Paul Mitchell.

Scent Green herbal with lily of the valley and water fruits

Delivery & returns

  • Free UK delivery on orders of £30 or more, otherwise £0.99.
  • Order by 2pm Monday to Friday for same-day dispatch. Delivery usually takes 1–3 working days.
  • Free click & collect from our salon at 55 Flamborough Road, Bridlington, YO15 2JH. We’ll email you when it’s ready.
  • 30-day returns on unopened items. Read our returns policy

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Frequently asked questions

How do I apply Paul Mitchell Extra Body Root Boost?

Towel-dry your hair, then spray close to the scalp section by section using the nozzle. Blow-dry with a round brush, lifting at the roots as you go.

Is Extra Body Root Boost good for fine hair?

Yes. It's made to give targeted lift where fine hair falls flat, with a soft, touchable hold, and Paul Mitchell lists it as vegan, paraben-free and colour-safe.

Root Boost or Thicken Up: what's the difference?

Root Boost is sprayed at the roots through its precision nozzle for targeted lift, while Thicken Up is a styling liquid worked through from roots to ends to make each strand look and feel thicker. You can use both: Thicken Up through the lengths, then Root Boost at the roots before you blow-dry.

Which size of Extra Body Root Boost is best value?

The 500 ml works out lowest, at £7.59 per 100 ml, against £9.98 per 100 ml for the 250 ml and £18.60 per 100 ml for the 75 ml, which is handy for travel or trying it out.