I use Cavicide because it's clear, but it does the same as Barbicide. These products protect against everything I could think of - MRSA, HIV etc, and believe me, when a client came in for a manicure and half way through (she forgot to mention it in the consultation) she told me 'Don't pull away, but I've got MRSA. Just thought you should know' I was grateful that I had complete confidence in my products!!! The fact that she didn't tell me is sort of irrelevant, because you would use all the same procedures and products whether they have anything or not - or you should do!!! I am sure that there is nothing naturally available that could instil me with such confidence. Hope that helps, although it may not be the answer you're looking for! Just for reference as well, my next client after her was a nurse, and I asked her if there was anything special I should do as I had had a client with MRSA, and she said 'If you follow all your normal hygiene procedures, you'll be fine'