Philip Kingsley Elasticizer Extreme 500ml

Philip Kingsley Elasticizer Extreme 500ml is the supersize, intensified version of the iconic British trichological brand's most beloved deep-conditioning treatment. Developed by trichologist Philip Kingsley for very dry, over-processed and porous hair, the pre-shampoo treatment is built around hydrolysed elastin, castor oil and olive oil — designed to add strength, body, elasticity and shine to even the most compromised hair.

About Philip Kingsley

Philip Kingsley is a British trichology-led haircare brand founded in 1955 by Philip Kingsley, one of the most respected trichologists of the 20th century. The brand's London clinic on Green Street has treated everyone from Audrey Hepburn to Cate Blanchett, and the original Elasticizer was created in 1974 specifically for Audrey Hepburn — making it one of the longest-running cult deep-conditioning treatments in haircare. The Extreme version is a richer formulation for hair needing more intensive repair.

Key ingredients

• Hydrolysed elastin: the brand's hero protein active; supports the look of strength, body and elasticity
• Castor (Ricinus communis) seed oil: rich emollient that helps lock in moisture and boost shine
• Olive (Olea europaea) fruit oil: conditioning emollient that softens and protects
• Glycerin: humectant that helps hair retain essential moisture
• Conditioning quaterniums (cetrimonium chloride, polyquaternium-37): smooth the cuticle for slip and detangling

Key benefits

• Deeply hydrates very dry, over-processed or porous hair
• Restores elasticity, strength and bounce
• Adds shine and softness
• Reduces breakage and helps minimise frizz
• Pre-shampoo format — penetrates without being weighed down by other products

Who it's for

Best for very dry, frizzy, coarse, curly or chemically processed hair (colour, lightening, perms, relaxers) that needs serious moisture and elasticity restoration. A useful weekly or bi-weekly treatment for hair feeling dull, brittle or unmanageable. Especially recommended for those with severely damaged or over-processed hair.

How to use

1. Apply a generous amount of Elasticizer Extreme to dry or damp hair before shampooing.
2. Distribute evenly through lengths and ends, avoiding the scalp if hair is fine.
3. Leave on for 10–20 minutes (longer for extremely damaged hair) — wrap in a warm towel for extra penetration.
4. Shampoo and condition as usual.
5. Use weekly, or more often during periods of intense heat-styling or chemical processing.

Specifications

• Size: 500ml (super size)
• Format: Pre-shampoo deep-conditioning treatment
• Hair type: Very dry, over-processed, porous, damaged hair
• Brand: Philip Kingsley