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Does a silk pillowcase really prevent hair breakage, or is it just marketing?
A silk or satin pillowcase lowers the friction between your hair and the pillow, but independent clinical proof that it reduces hair breakage is missing. Here's what the fibre data...
Does heat styling cause hair loss, or is it breakage?
Heat styling almost never causes real hair loss, but it does cause breakage: your hair root sits protected under your skin. Here is how to tell from a single hair...
What are those white dots in my hair, and does heat styling cause them?
White dots along the length of your hair are usually trichorrhexis nodosa: spots where the hair fibre frays from friction and pressure. Here's how to tell them apart from dandruff,...
