I went blonde with Anita Rice, the founder of Buller and Rice and Ralph and Rice, and I trust her explicitly when it comes to my hair. She told me that different depths of hair lift differently, and at different speeds. For someone like me, who has finer hair, it is generally easier to lift the tone and therefore easier to make the hair blonder. If someone has darker hair, Anita recommends aiming for a biscuit or caramel shade, as this will be easier to maintain in the long run.
If you have Afro hair, once it's had a chemical service such as bleaching, it will lose its moisture quickly, so Anita recommends using a hydrating and moisturising treatment regularly, and suggests booking in for regular Olaplex baths. The same goes for curly hair: The curlier it is, the more drying lightening your hair can be, so you need to ensure you put as much moisture back in as possible. Shop some of the products Anita recommends below.