Adult acne is far more common than most women realise — and it’s not just about “dirty skin” or bad hygiene. From hormones and stress to inflammation and skincare triggers, this evidence-based guide breaks down what actually causes adult acne, why breakouts can worsen in your 30s and 40s, and how to treat acne effectively while preventing long-term scarring and pigmentation.

Ingredient checker apps promise clarity — scan a product, get a score, and instantly know whether your skincare is “safe” or “toxic.” But skincare science is far more nuanced. Many ingredient checkers ignore concentration, skin type and real-world usage, often turning complex cosmetic chemistry into fear-based traffic lights. Before throwing out your favourite products, here’s what these apps aren’t telling you.