Or maybe it seems like products just seem to sit on top of your hair, leaving you with a chalky, greasy or sticky film. If that’s the case, you might be dealing with low porosity hair.

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your hair might have low porosity. The world of hair care is filled with jargon – density, elasticity, protein-moisture balance – but porosity? That's the term that could explain why some ...

Plus, your hair's porosity can change over time due to styling damage, treatments and hormones – helpful, we know. Historically, low porosity hair is normally seen as 'good' and high porosity 'bad' it ...