Garnier Olia Luminous Long-Lasting Permanent Hair Colour, 5.0 Brown

Olia · Haircare

Garnier Olia Luminous Long-Lasting Permanent Hair Colour, 5.0 Brown

In short: Garnier Olia is a permanent hair colour that delivers luminous, long-lasting brown shade 5.0. It suits those seeking natural-looking results for brown hair, with ammonia-free formula for less irritation.

Key features

  • Luminous long-lasting permanent colour
  • Shade 5.0 Brown for brown hair
  • Ammonia-free formula
  • Nourishing oils for healthier hair
  • Suitable for at-home application
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Garnier Olia Luminous Permanent Hair Colour, shade 5.0 Brown, is a permanent dye designed for the pack instructions. Apply the colour as directed, following the recommended processing time before rinsing thoroughly. Always perform a patch test 48 hours before first use as instructed in the packaging.

This shade is ideal for those with natural or previously coloured brown hair looking to refresh or deepen their tone. The permanent colour ensures coverage of grey hairs and maintains its intensity through multiple washes. The ammonia-free formula reduces scalp irritation during application while nourishing oils help maintain hair health, resulting in a vibrant, natural-looking finish that lasts through many washes without rapid fading.

Who is it for?

A good fit if you:

  • have brown hair
  • want long-lasting colour
  • seek a natural-looking finish
  • prefer ammonia-free formula

Maybe skip it if you:

  • have very light or blonde hair
  • need temporary colour
  • want immediate results without processing time

How to use it

Apply the colour according to the instructions provided in the pack. Follow the recommended processing time and rinse thoroughly after development. Always perform a patch test 48 hours before first use as directed.

Frequently asked questions

Is Garnier Olia suitable for covering grey hair?

Yes, shade 5.0 Brown is a permanent colour that effectively covers grey hair, providing long-lasting results for brown hair.

Does this hair colour contain ammonia?

No, Garnier Olia uses an ammonia-free formula to reduce scalp irritation while delivering permanent colour.

How long does the colour last?

The permanent formula is designed to last for many washes, maintaining its colour intensity over time without fading quickly.

Last updated 19 October 2026.

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