L’Oréal Pro Dia Light Gloss Color Hyaluronic Acid Hair Colour 8.21

Colour Gloss with Hyaluronic Acid: The Professional Hair Colour That Hydrates While It Transforms

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

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

Dia Light is an acidic pH tone-on-tone colour, created for professional 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 harshness… and with a sensation of fuller-looking 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 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 customisation: 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 mirrored shine and softer feel

Tones and neutralises unwanted post-bleaching tones

Revitalises 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 potential colour variations that may arise.