Quote Originally Posted by oLiLlY
The metabolites and toxins can stay in your hair for years. There really is no way to completely get rid of that either.
I would suggest finding some kind of shampoo or product to mask it for now.
Those parts. The first statement isn't that inaccurate but is a little off. After about 90 days the metabolites begin to deteriorate or degrade but it is possible for them to remain for years, depending on length, history of use, what is used on the hair. Although not always successful, there are ways to get rid of metabolites from hair or reduce them below the threshold of detection. The good shampoos don't mask, they strip hair of metabolites.