L’Oreal DIA Light Ammonia-Free Demi-Permanent Gel-Cream Hair Colour 50ml

L’Oréal Dia Light is a professional demi-permanent toner / gloss, not a standard hair dye. Thanks to its acidic demi-permanent gel-crème hair colour without ammonia it is the perfect formula to neutralize any lightened hair and refresh any faded lengths. Hair is balanced and 30% more conditioned for a healthier and natural looking result.

L’Oreal Professionnel Dia Light Features:

• Tone, gloss, refresh previously sensitized or colored hair
• Customize your results thanks to a large palette of shades.
• Gentle acidic technology to balance the hair and close cuticles for healthier looking hair.
• Nourishes the hair : hair is 30% more confitioned* (instrumental test).
• Does no lift.
• Doesn’t cover greys – for coverage of up to 70% greys, we recommend Dia Color.

L’Oreal Dia Light Tips:

Cool toning shades – Cool shades in Level 9 and 10 are amazing to tone and gloss your Blonds in just 5-10 minutes – Cool toning shades from level 6 to 8 to neutralize and gloss any brunettes after lightening

L’Oreal Dia Light Developer Tips:

You can use any DIActivateur Developer with DIA Light, but our Artists recommend: – 6-vol. DIActivateur Developer for your Blonds – 9-vol. DIActivateur Developer for your brunettes

LOreal Professional Dia Light Ingredients:

Typical formula includes:

• Conditioning agents (fatty alcohols, oils)
• Humectants like glycerin / hyaluronic acid
• Colour pigments (oxidative dyes)
• Nourishes the hair : hair is 30% more confitioned* (instrumental test).
• Mild alkalising agents (ethanolamine instead of ammonia)

L’Oreal Dia Light FAQs:

What is L’Oréal Dia Light?

L’Oréal Dia Light is a professional demi-permanent hair colour designed to tone, refresh, and enhance shine without lifting the natural hair colour. It uses an acidic, ammonia-free formula, making it ideal for previously coloured or sensitised hair.

What makes Dia Light different from regular hair dye?

• No ammonia formula
• Acidic pH technology (gentler on hair)
• Deposit-only colour (does not lighten hair)
• Primarily used for toning and glossing, not full colour transformations

Can Dia Light lighten my hair?

No. Dia Light is a deposit-only colour, meaning it cannot lighten natural or previously coloured hair.

What developer should I use?

You must use Diactivateur developer:

• 6 vol (1.8%) → for subtle toning
• 9 vol (2.7%) → for stronger colour deposit

What is the mixing ratio?

Standard ratio: 1:1.5 (colour : developer). Example: 50ml Dia Light + 75ml developer

How long should I leave it on?

Typical processing time: 5 to 20 minutes

How long does Dia Light last?

Typically 4 to 6 weeks.

Is Dia Light damaging?

No. It is:

• Ammonia-free
• Designed for sensitised and colour-treated hair
• Helps improve shine and softness

Can I use it after bleaching?

Yes. This is one of its main uses:

• • Neutralises unwanted tones
  • Restores shine and balance

Please Note: The heavily discounted items may come in L’Oréal’s previous packaging, but they are all brand new and unopened.