Hi OK I ve read the posts on how to make your own hydroquinine but there's nothing stating how to use/ how to apply??

Do you apply the 10% like a cream like a moisterzer would go on face smooth all over till it disappear?

Or do you apply it on spefic dark areas and not rub it in but let it sit on marks overnight?

Also do you apply the homemade hydroquinone daily? How many times a day?
What are some noticeable results to expect upfront?

Thank you