My wife and I used this suncream for the first time on a three week sailing cruise down the windward Caribbean islands. I can honestly say that until something else proves better that we will be using nothing other than Ultrasun to protect us from those UV rays!
The cream is fairly thick but rubs in well for a 'once-a-day' product. My wife is VERY particular about what she puts on her skin and she was impressed that it lives up to its claim of being non-greasy. I like to use a high factor as I am not interested in tanning and I have to say that I came nowhere near burning when using this as intended -- once-a-day. I went snorkeling and had a shower in one day and I never needed to reapply -- it still kept me protected.
Although more expensive than other suncreams, since Ultrasun succeeds at its once-a-day function, my calculation is that it may work out slightly cheaper than branded creams that require re-application.
Conclusion: Fantastic product that outshines any other suncream I have used -- truly once-a-day; non-greasy; water-resistant; convenient and cost effective.