L’Oréal Pro Dia Light Gloss Color Hyaluronic Acid Colour 7.43

Color Gloss 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 precise results.

In the basin, the mixture transforms into a smooth, easy-to-control cream. Upon application, the difference is felt: it glides without dripping, wraps the fibre, and “embraces” the hair - even when it's sensitised after bleaching. In 20 minutes, the result appears… mirror-like shine, cleaner reflections, naturally revived colour.

Dia Light is an acidic pH tone-on-tone colour, created for technical salon 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 lift, no extra aggression… and with a feeling of fuller fibre.

Hyaluronic Acid (hyaluronic complex) acts during the service: it helps restore lost moisture and coat the fibre with a hydrating layer. The cuticle is more sealed, the feel is more disciplined, and the hair gains resistance - 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 up to 6 weeks.

Key features:

Acidic tone-on-tone colour (acidic pH)

Enriched with Hyaluronic Acid: hydration during colouring

Ammonia-free and no lift

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

Tones and neutralises unwanted tones 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)

Gloss/colour shine result for up to 6 weeks

Processing time: 20 minutes

For professional use

Shade samples are merely indicative, as they may vary depending on the computer screen used for viewing. Therefore, Pluricosmética declines any responsibility for any colour variations that may arise.