Garnier Olia Highlights Kit - Black

This kit is specifically designed and formulated for blonde hair. Using it on darker hair colors (e.g., brown, black, red) may not yield the desired results and could lead to unexpected tones or insufficient lightening.

The highlights created with this kit are permanent, meaning they will not wash out. They will grow out with your hair, requiring touch-ups as your roots appear.

Yes, absolutely. An allergy patch test must be performed 48 hours before each application, even if you have used hair color products before. This is crucial for your safety.

The kit typically includes the developer cream, lightening powder, after-lightening conditioner, a pair of gloves, and the instruction leaflet. Specific contents may vary slightly, always check the box.

It is generally recommended to wait at least 4-6 weeks between lightening applications to allow your hair to recover. Only touch up the root regrowth or new sections, avoiding re-applying to previously lightened hair to prevent damage. Always assess your hair's health before re-applying.

This kit is designed for natural blonde hair or previously lightened blonde hair. If your hair has been previously colored with a permanent dye, especially a darker shade, consult a professional as results can be unpredictable.

Ensure you left the product on for the full recommended processing time (up to 45 minutes). The strand test is crucial for determining your hair's specific development time. If your hair is very dark blonde, a single application may provide subtle results; deeper lift may require professional assistance or a different product.

Brassy tones can occur if the hair isn't lightened past certain underlying pigments. Use a purple toning shampoo or conditioner specifically designed for blonde hair to neutralize yellow and orange tones. If the brassiness is severe, consult a professional.

This often results from uneven application or insufficient saturation. Ensure the product is applied thoroughly and evenly to each selected strand. For balayage or ombre, practice your technique on dry hair first without product. Sectioning hair precisely is key for uniform results.

While the Olia formula is designed to be gentle, any lightening process can be drying. Ensure you followed all instructions, including the rinsing and conditioning steps. Use deep conditioning treatments or hair masks regularly post-highlighting. Avoid excessive heat styling immediately after.