Does 'drinkable sunscreen' work?We find a surprise when we look at the ingredients

04 August 2014

Harmonized H2O

Will Harmonized H2O protect your skin like a traditional sun cream?

A product that has been widely publicised in the media as the ‘world’s first drinkable sunscreen’ is 100% water. Harmonized H2O UV Neutralizer costs £25 for a 100ml bottle and its makers claim that it works thanks to ‘vibrational waves’.

The claim is that Harmonized H2O works because the vibrational waves in the water neutralise both UVA and UVB, the types of UV radiation that have been associated with skin cancer. The product claims to offer protection equivalent to a SPF30 sunscreen.

If you want a SPF30 sun cream that's proven to work, find out which 12 sun creams passed our SPF and UVA tests in our full sun cream test results. 

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Does Harmonised H20 UV Neutralizer work?

If you think Harmonized H20's claims sound dubious, you’ll be interested to hear that the British Association of Dermatologists agrees, saying ‘it’s complete nonsense to suggest that drinking water will give you a Sun Protection Factor (SPF) of 30’. It advises people not to rely on 'unproven methods' and to continue to protect their skin using traditional sun creams, clothing and shade.

Which? contacted the makers of Harmonized H2O, who said they have results of a clinical trial but couldn’t share these in time before we went to press with the August issue of Which? magazine. 

Until there is some real evidence that products like this work, we recommend sticking to proven sun creams - such as the ones that passed our recent SPF and UVA tests.

Which? reviews sun creams 

We tested fifteen sun creams from big brands, including Avon, Garnier, Hawaiian Tropic and Piz Buin, as well as own-brand products from shops such as Asda, Boots and Superdrug. Three products failed our British Standard tests so we named them Don’t Buys. 

Seven sun creams passed our SPF and UVB tests and were rated highly for application by our panel of testers – to find out which products aced our tests, check out our sun cream Best Buys.

More on this…

  • Want to know which products failed our tests? See our sun cream Don’t Buys
  • Our video shows our tough tests in action – find out how we test sun creams
  • From what the UVA seal means, to if sun creams go off - what you need to know about sun cream