SPF, decoded: what those star ratings and numbers actually mean, how often you really need to reapply, and why tinted mineral sunscreen is the one upgrade that makes a difference if you're managing melasma.

Hair loss can feel overwhelming, but a few easy interventions can help start the road to recovery. In this Journal Club guide, Dr Munroe looks at the shampoos, scalp care, supplements, and in-clinic treatments backed by real evidence, plus the baseline blood tests worth doing before you spend a penny on anything else.