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Cancer

Do hair dyes increase cancer risk?

mixing-hair-dye
January 20, 2021

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Comments

azure
January 22, 2021

No stats on use of hair dyes like henna?

SG
January 22, 2021

You mention in the limitation that subjects may have mistakenly reported use of permanent hair dyes when they were in fact using semi-permanent or natural dyes. Are there (1) data on the risk of cancer being lower with the use of semi-permanent dyes or (2) is it biologically plausible that the risk would be lower/different?

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