How to use Cymex Lip Protector For everyday protection, apply to lips as often as needed. During prolonged exposure to cold, windy, dry or sunny environments, apply more frequently. How Cymex Lip Protector works Cymex Lip Protector contains a unique formula of SPF 15, moisturisers & skin protectants, which provide daily protection against damaging effects of sun, wind & cold. It has a minty flavour & gives you a slight tingling sensation. Its thick & creamy consistency will coat your lips giving them a protective barrier.