Heat, humidity and sweat: the trio of foundation-melting elements that plague most of us during the warmer months. I know that our instinct is usually to opt for a thick, matte foundation that'll stay put even on a hot day. The only problem is, it doesn't.
Wearing a thicker formula may not only expose you to the risk of your foundation separating, but it also may oxidise and turn patchy. For most skin types, you're better off wearing a lighter coverage and customising your primer and powdering technique to get a lasting finish.
The foundation I'll be reaching for as the weather heats up is Bobbi Brown's Intensive Skin Serum Foundation SPF25.