Calypso Once a Day Sun Protection Lotion with SPF 30

Product Information

Mineral sunscreens fail Which? SPF and UVA tests - find out what happened when we put pricey mineral formulations to the test in our independent lab

Apply evenly and generously, smooth in gently. We recommend a minimum quantity of 35ml for all over body protection. Professor Brian Diffey, of BAD, says: 'We recommend against relying on any sunscreen product for long periods without reapplication, whether advertised as an extended wear product, or not.But do 'once a day' sunscreens really last all day? And should you rely on them? Our research, and the small print on the bottle, suggests you may need to re-apply more often than you think. Nobody applies sunscreen perfectly uniformly to all exposed skin and it is inevitable that we will miss patches of skin. Use in the water - Calypso warns that even ‘water-resistant Once A Day sunscreens’ can still be washed off if you spend a long time in the water, or if you dry yourself with a towel. A spokesperson added: 'As with all sunscreens, it is important to follow the instructions for application and use; and sunscreen should not be used to intentionally stay longer in the sun. Sunscreen is just one part of a sun safe regime.' Boots

They tend to be more expensive than standard sunscreen and claim to offer high and long lasting protection, usually by forming a more resistant film on the skin than standard sun cream. A spokesperson told us that all of its sun creams are designed for 'longevity' but that it found the use of the word 'durable' more 'appropriate' than once a day. Boots Soltan Kids Once, Calypso Once a Day and Riemann P20 Once a Day are among the brands we've found claiming to offer all day protection.In 2016 Which? put several once-a-day sunscreens to the test, investigating how long they lasted on volunteers in a controlled lab experiment, and found they didn't offer nearly as much protection as claimed. Casting incorrect assertions in this manner is misleading and confusing to customers and we are disappointed that Which? has chosen to do this.' Calypso Constantly re-applying sun cream when you're out and about can be a real chore, especially if you're trying to keep wriggly kids protected. Yes, you can - but you’ll also need to reapply frequently, just like you would if you were on the beach staying dry, and immediately after towel drying. The only bad thing is it smells quite strong, like ammonia. So avoid your eyes! My first day I rubbed it all over my face and my eyes watered all day but from then I just avoided my eye area and it was great. Some regular sun creams also make my eyes water.