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Philip Kingsley

Philip Kingsley Elasticizer Extreme Deep Conditioner

  • 16.9 fl oz jar
  • Pre-shampoo mask on damp hair
  • 10-20 minutes under a cap or towel
  • Overnight leave-in option
  • Higher doses of the original Elasticizer ingredients
  • Recycled packaging, not tested on animals

Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A rich, pre-wash mask for very dry, damaged or curly hair that restores elasticity and moisture. It adds a step before shampoo, so it suits weekly treatment days more than rushed mornings.

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ASIN: B0D9BC7WPPCategory: Deep Conditioners

Overview

Not a regular conditioner, Philip Kingsley Elasticizer Extreme goes on damp hair before shampoo and is left under a cap or towel. It packs higher doses of the original Elasticizer ingredients to hydrate fragile hair and add elasticity.

Pre-wash use means the shampoo removes residue, so hair gets deep conditioning without feeling coated. It takes real time per session, and the ingredient list is not shown here.

Who it's for

Over-processed, bleached or naturally coiled hair that snaps easily will benefit from the long treatment. People with fine, healthy hair are unlikely to need something this intensive.

Pros and cons

Pros
  • Deep pre-wash treatment
  • Can be used overnight
Cons
  • Long treatment time
  • Ingredients not listed
  • Extra step before shampoo

Performance notes

Covering the hair traps body heat, which Philip Kingsley says opens the cuticle so the mask absorbs better. Shampooing afterward lifts the excess, so hair stays soft without residue.

Specifications

BrandPhilip Kingsley
Liquid Volume16.9 fl oz
Hair TypeDry, damaged, curly, over-processed
Hair Conditioner TypePre-shampoo deep conditioning mask
Material FeaturesNot tested on animals; sugarcane bio-plastic and PCR packaging
Suggested useApply in sections to damp hair before shampoo, cover, leave 10-20 minutes or overnight, rinse, then shampoo and condition

Frequently asked questions

Do I use Elasticizer Extreme before or after shampoo?

Before. Apply it to damp hair, leave it on, rinse, then shampoo and condition as normal.

Can I leave Elasticizer Extreme on overnight?

Yes. Philip Kingsley says it can be used as an overnight leave-in treatment or a 10-20 minute mask.

How is Elasticizer Extreme different from Elasticizer?

It has the same deep conditioning ingredients in higher doses, for very dry and fragile hair.