So, one day without sunblock and my cheeks & nose are red, very red
[and awful, but not sore] 
.
Anyway on the way home I got P20 once-a-day, and just checked the ingredients and it doesn't contain titanium oxide [or that other "active" ingredient, which I cant remember the name of...]. It doesn't have the uva star rating thing either....
Found this though;
Quote:
What makes P20 different?
The active ingredient in P20 is PABA (p-aminobenzoic acid), which is a natural substance found in the human body - it is also known as Vitamin H. When P20 is applied to the skin, the p-aminobenzoic acid is absorbed and binds to the keratin in the skin, a process that takes 90 minutes. Amazingly P20 gives high protection (SPF 20) against the sun's burning UVB rays but still lets through some UVA rays to allow you to tan. Result - a golden tan without the burn. The protection factor (SPF) is an expression of how many times longer you can stay in the sun (following the correct instructions of a 90-minute waiting time) than if you had no protection.
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Have you used it?
- other than that, sunblocks are a nightmare: either sting and block pores, or i still get very tanned :/