We may earn commission from links on this page, but we only recommend products we love. Promise. Welcome to Cosmo HQ Review, the corner of the internet where our team of beauty-obsessed editors shares ...

Olaplex has reformulated its No. 3 Hair Perfector mask following an EU ban on a previous ingredient. Continued exposure to the additive, lilial, was linked to fertility risks and banned from cosmetics ...

Welcome to Cosmo HQ Review, the corner of the internet where our team of beauty-obsessed editors shares their unfiltered, honest thoughts on the latest and greatest launches in skin, hair, makeup, and ...

I’ve always heard so much about Olaplex, yet I never tried the brand myself. Many have written love letters to their shampoo, conditioner and hair oil, so I wasn’t surprised to see their newest ...

We tested the salon-loved K18 hair mask to see if it really holds up to heat- and color-damaged hair. Spoiler alert: It exceeded our expectations. Our editors and experts handpick every product we ...

This Olaplex mask has been recommended to us many times over for its ability to repair and strengthen the hair of everyone from double-processed platinum blondes to folks with high-porosity hair, ...