Dialight 50ml 10.24 by L'Oréal Professionnel

Why you'll love it

• An acid, tone-on-tone demi-permanent colour in 10.24, a lightest pearl blonde with a soft copper-rosé glow
• Zero lift, it deposits tone and shine without lightening or sensitising the hair
• Fills the hair with moisture and conditions for maximum shine
• Perfect for coloured or sensitised hair that needs gloss and refreshing
• A professional favourite from the L'Oréal Professionnel Dia Light range

Glossy, luminous, pearl blonde with zero harshness. L'Oréal Professionnel Dia Light in 10.24 is an acid gel-cream tone-on-tone hair colour that deposits beautiful tone and shine without lifting or sensitising the hair. Instead of lightening, it fills the hair with moisture and conditions it for maximum shine, which is exactly why it's such a firm favourite with professional colourists. Shade 10.24 is a lightest blonde with a cool pearl reflect and a soft copper second, giving a delicate, luminous pearl-rosé blonde. Its zero-lift, acidic formula makes it ideal for coloured or sensitised hair, delivering gorgeous shine and condition.

What it does for your hair

Shade 10.24 sits at depth 10 (the lightest blonde) with a primary.2 (iridescent pearl) reflect and a secondary.4 (copper). The dominant pearl keeps the tone cool and helps counter yellow, while the copper second warms it just enough to add a soft, rosy, luminous glow, so instead of a stark ash, you get a delicate pearl-rosé blonde. Because Dia Light is an acid, zero-lift demi, it deposits tone and adds gloss without opening the cuticle to lift, so it perfects the colour, refreshes it, and adds serious shine while conditioning, all without stressing already-lightened or sensitised hair. It's tone-on-tone, so it fades gradually and softly rather than leaving a harsh line.

How to use it

Carry out an allergy alert test at least 48 hours before every application (see below). Mix Dia Light with L'Oréal Professionnel Diactivateur at the correct ratio for the range, following the instructions, apply to pre-lightened or coloured hair, process for the recommended time, then rinse thoroughly and follow with colour-safe care. As a pearl-led (cool) shade, keep it looking fresh with colour-safe care and, if needed, gentle purple/silver toning to hold the cool tone.

Who it's for

This one's for anyone with pale blonde, coloured or sensitised hair who wants a soft, luminous pearl-rosé tone with high shine and conditioning, without any lift. We've been perfecting colour, blow-dries and styling for clients in Codsall for years, and an acid gloss like Dia Light is one of the loveliest ways to refine and add shine to delicate blonde.

Build your routine

Cool, pearl-toned blonde stays fresh with colour-safe care and, where needed, gentle toning. This colour is mixed with L'Oréal Diactivateur (sold separately). Find a suitable wash in our shampoo collection, explore more colour-care options across our hair products, or browse our shop by brand pages for your favourites.

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This product is used with a developer and contains ingredients that can cause an allergic reaction. Always carry out an allergy alert test according to the instructions at least 48 hours before each use, even if you have coloured your hair before. Not intended for use on under-16s. Wear suitable gloves, avoid contact with the eyes, and do not use on an irritated or damaged scalp.