If you want to get platinum blonde hair but have golden blonde, there are a few things that you need to do.

First of all, you need to make sure that your stylist knows how to color your hair and that they use the right products. This is important because you don't want your hair to become yellow from the bleaching process.

Next, you need to get a hair dye that is formulated for your skin tone. This is essential because it will ensure that the color stays on your hair and doesn't fade out quickly.

Once you have your dye, mix it up with a tinting brush and apply it on your tresses. Follow the instructions on the bottle of the hair dye to ensure that you get a perfect result.

Another thing to remember is that you need to maintain your new hair color for a long time to keep it platinum. This is because the bleaching process can cause your hair to turn yellow if you don't take care of it properly.

To prevent this from happening, you need to keep using the right products and removing your hair on a regular basis. This will keep your strands from turning yellow and also prevent them from getting damaged.

Finally, you need to make sure that you're going to a good stylist who knows how to get platinum blonde hair without damaging it. If you don't go to a professional, it can be very difficult to achieve the results that you want.