Olay's Regenerist cream and its signature red jar is probably one of the most recognisable skin-care products on the high street. It's also one of the most effective. That's why it's super exciting that the brand has gone and created a version — the Olay Regenerist Day Cream SPF 30 (£20) — with sun protection to ensure your skin's safe from UVA and UVB rays when you walk out the door (just make sure you're applying enough to get full protection or layering a face sunscreen on top).