Collagen has become something of a skincare and wellness buzzword of late, and with many options on the market it can be tricky to know where to spend our hard-earned cash. However, for those prioritising skin and hair, collagen can prove fruitful in aiding with nourishing locks and boosting the complexion's elasticity. One company offering a popular liquid collagen supplement is Reverse Life, whose formula contains hyaluronic acid, biotin and high-strength marine collagen to support skin,