https://blog.cansfordlabs.co.uk/hs-fs/hubfs/If%20hair%20is%20bleached%20regularly,%20it%20may%20be%20that%20no%20trace%20of%20drugs%20can%20be%20found%20-%20even%20if%20they%20have%20been%20used%20within%20the%20testing%20time%20frame.jpg?width=650&name=If%20hair%20is%20bleached%20regularly,%20it%20may%20be%20that%20no%20trace%20of%20drugs%20can%20be%20found%20-%20even%20if%20they%20have%20been%20used%20within%20the%20testing%20time%20frame.jpg