L’Oréal Pro Dia Light Gloss Color Hyaluronic Acid Colour 9.1

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

Now renewed – with a new look, the same professional performance you already know… and even more focus on shine, hydration, and precise results.

In the basin, the mixture becomes a smooth and easy-to-control cream. During application, you feel the difference: it glides without dripping, wraps the fibre and "embraces" the hair - even when sensitised after bleaching. In 20 minutes, the result appears… mirrored shine, cleaner reflections, naturally revived colour.

Dia Light is a tone-on-tone colour with an acidic pH, created for professional salon services: to tone after bleaching, neutralise unwanted shades, refresh faded lengths, and restore that gloss effect that transforms dull hair into hair with presence. Ammonia-free, no lift, no extra harshness… and with a feeling of a fuller hair fibre.

The Hyaluronic Acid (hyaluronic complex) acts during the service: it helps restore lost moisture and coats the fibre with a hydrating layer. The cuticle is more sealed, the hair feels more disciplined, and gains resistance - ideal when the priority is to preserve the cortex integrity 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 create 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 mirrored shine and a softer feel

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 hair cortex integrity and helps seal the cuticle

Helps strengthen sensitised fibre (instrumental test on bleached hair)

Results with shine/gloss colour 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.