Garnier Olia Permanent Hair Colour - Intense Copper 7.40

Yes, Garnier Olia 7.40 Intense Copper is formulated to provide up to 100% grey hair coverage, delivering a uniform and vibrant result.

No, Garnier Olia 7.40 Intense Copper features an ammonia-free formula, which contributes to a more pleasant scent and a gentler experience during application.

Garnier Olia is a permanent hair colour, meaning it is designed for long-lasting results. The vibrancy of the copper shade can be maintained longer with proper colour-safe hair care products and by limiting harsh washing.

The 60% oil-powered, ammonia-free formula of Garnier Olia is designed to be gentle and visibly improve hair quality, leaving it softer and shinier. However, always follow the instructions carefully to minimize any potential stress on the hair.

Yes, absolutely. You must perform an allergy patch test 48 hours before each and every use of the product, even if you have coloured your hair before. This is a critical safety step to identify potential allergic reactions.

If you have sensitive skin, performing the mandatory 48-hour patch test is even more critical. If you experience any reaction during the test, do not use the product. If you have known severe sensitivities, consult a dermatologist before use.

To prolong your copper shade, use colour-safe shampoos and conditioners, wash your hair with cooler water, limit washing frequency, use heat protectants, and consider products with UV filters to protect against sun fading.

Ensure you followed the development time accurately. Factors like initial hair colour, porosity, or previous treatments can affect the final shade. If grey hair wasn't fully covered, ensure thorough saturation of those areas during application and check the original instructions for application tips.

While Olia is designed to improve hair quality, ensure you used the post-colour conditioner provided and follow up with a nourishing, colour-safe conditioner in subsequent washes. Avoid excessive heat styling right after colouring. If severe or persistent dryness occurs, consult a hair care professional.

Apply a barrier cream (like petroleum jelly) around the hairline before colouring to prevent skin staining. Clean up any splashes on surfaces immediately with a damp cloth. For skin, try gently rubbing with a cotton pad soaked in a mild toner or baby oil, but avoid harsh scrubbing as it can irritate the skin.

Immediately discontinue use and rinse hair and skin thoroughly. Seek medical attention without delay. This highlights why the 48-hour patch test is absolutely critical for user safety and should never be skipped.