Dia Light Booster - 50ml

Acidic Gel-Cream Toner for Coloured Hair

Dia Light by L’Oréal Professionnel is a professional, ammonia-free, acidic gel-cream toner designed to refresh and tone previously coloured or sensitised hair. Its unique pH-balanced formula seals the cuticle, enhancing shine and delivering a sleek, vinyl-like finish.

Ideal for post-lightening services, colour top-ups, or mid-length refreshes, Dia Light allows colourists to neutralise unwanted tones while preserving hair health. With a wide range of intermixable shades and boosters, Dia Light enables endless customisation and on-trend, personalised results for every client.

Key Benefits:

• Ammonia-free acidic gel-cream formula

• Seals the cuticle for enhanced shine and smoothness

• Refreshes colour-treated hair without damage

• Neutralises brassiness and unwanted undertones

• Intermixable with other Dia Light shades and clear

How to Use:

• Mixing Ratio: 1:1.5 (e.g. 50ml Dia Light + 75ml Diactivateur 6 or 9 vol)

• Development Time:

  • Glossing: up to 20 mins

  • Toning or pre-colouring: 5–10 mins

  • Colour refresh or change: 5–20 mins

  • After texture services: 5–10 mins

Pro Tips:
Use Dia Light Boosters alone for bold tone effects or combine with clear for pastelised results on pre-lightened hair. The darker the base, the more pigment may be required.

Ideal For:

• In-between colour refreshes

• Post-lightening toning

• Glossing for shine and smoothness

• Custom, ammonia-free colour services

Achieve healthy-looking, vibrant hair with every application using Dia Light—a stylist’s go-to for controlled toning and luxurious gloss.