3 doctors weighed in:
Does chemical lice shampoo lighten coloured hair?
3 doctors weighed in

Dr. Michael Tomeo
Dermatology
1 doctor agrees
In brief: Not necessarily
Usually these products do not bleach hair.

In brief: Not necessarily
Usually these products do not bleach hair.
Dr. Michael Tomeo
Dr. Michael Tomeo
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Dr. Richard Bensinger
Ophthalmology
In brief: No
Shampoos will not change hair color even if they contain anti-parasite agents.

In brief: No
Shampoos will not change hair color even if they contain anti-parasite agents.
Dr. Richard Bensinger
Dr. Richard Bensinger
Thank
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