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how long does it take for heroine to be negative in a hair strand test

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Amari Carter

Lvl 10
2y ago
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Wiki User

12y ago

3-5 days depending on your body type.

The skinnier you are the faster you will get it out of your system. Fat tends to make the process slower for it to get out of you.

To be perfectly safe give it a week.

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Wiki User

14y ago

usually 3 days

but it could take up to 6

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