L’Oréal Pro Dia Light Gloss Color Hyaluronic Acid Hair Colour 4

Gloss Colour with Hyaluronic Acid: The Professional Hair Colour that Hydrates While it Transforms

Now renewed - with a new look, the same professional performance you already know… and an even greater focus on shine, hydration, and result precision.

At the salon basin, the mixture becomes a smooth, easy-to-control cream. During application, the difference is noticeable: it glides without dripping, coats the hair fibre, and "embraces" the hair - even when sensitised after bleaching. In 20 minutes, the result emerges… mirror-like shine, cleaner reflections, naturally revived colour.

Dia Light is a tone-on-tone hair colour with an acidic pH, created for professional salon technical services: toning after bleaching, neutralising unwanted tones, refreshing faded lengths, and restoring that gloss effect that transforms dull hair into hair with presence. Ammonia-free, no lightening, no extra aggressivity… and with a sensation of fuller-looking fibre.

Hyaluronic Acid (hyaluronic complex) works during the service: it helps restore lost moisture and coats the fibre with a hydrating layer. The cuticle becomes more sealed, the touch more disciplined, and the hair gains strength - ideal when the priority is to preserve the integrity of the cortex and work safely on bleached hair.

For your salon, it means predictability and personalisation: 80 shades + chromatic boosters (Blue, Violet, Red/Orange, Yellow/Orange, Green) to build colour, shine, and neutralisation in detail, with a glossy finish that can last for up to 6 weeks.

Key features:

Acidic tone-on-tone hair colour (acidic pH)

Enriched with Hyaluronic Acid: hydration during colouring

Ammonia-free and no lightening

Immediate gloss effect: 82% more mirror-like shine and softer touch

Tones and neutralises unwanted shades post-bleaching

Revives faded lengths and ends after colouring

Instantly combats visible fibre dehydration

2x more hydration vs. previous formula

Preserves the integrity of the hair cortex and helps seal the cuticle

Helps strengthen sensitised fibre (instrumental test on bleached hair)

Result with shine/gloss colour for up to 6 weeks

Processing time: 20 minutes

For professional use

The shade samples are merely indicative, as they may vary depending on the computer screen used for viewing. Pluricosmética therefore declines any responsibility for possible colour variations that may occur.