Low porosity hair has a tightly sealed cuticle, making it resistant to absorbing water and treatments. Use heat to open the ...

How to ACTUALLY find your hairs porosity and why not knowing yours is holding you back from having the hair you've always ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Developing the right routine for your specific hair needs is no easy feat. Much like with skincare, there ...

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Your hair’s relationship with moisture affects everything from product selection to styling success. Hair porosity, or how well your strands absorb and retain moisture, can explain why some products ...