Voila Technics' D-Free Bleach in 34oz is a must-have.

This hair bleaching powder is a non-volatile product with high lightening power, making it ideal for creating matches, highlights, bleaching, and decoupage. It has a violet pigment and anti-yellow action, as well as a low ammonia content to match the hair structure. It is easy to prepare and apply, and it is highly comfortable and safe to use. Additionally, it is suitable for use on all hairs.