Background Briefing

This week, Prianka Srinivasan arms herself with a burner phone and a fake name, and sets out to learn how Instagram’s algorithm really works.

When the founder of a skincare company discovers his zinc sunscreen product potentially isn't achieving the protection it's supposed to, it doesn't take long before he realises the problem is far bigger than he first thought.

The injectable industry is booming, but behind the glossy ads and plump looks, some patients are discovering filler that doesn’t dissolve. This week reporter Gina McKeon reveals the hidden risks of chasing an Instagrammable face.

For young men struggling with body image, social media offers a radical solution: get taller by breaking your legs. As the cosmetic limb-lengthening industry booms worldwide, Emilia Terzon explores the secretive online communities obsessed with undergoing the procedure, and meets the doctors left to deal with what happens when it goes wrong.

Hair loss ads are everywhere. Telehealth clinics with thousands of five-star reviews promise fast consults and discreet delivery to your doorstep. But what happens when the treatment messes with your brain chemistry?