Re the BB cream SPF 15. The SPF means how ever long it takes you to burn, you can stay in the sun 15 times longer. It's not about potency. I have been told by a skin care company that sells various sunscreens, that if you're not in the sun for an extended amount of time or perspiring, SPF 15 is fine, and will last all day if in and out of the sun, e.g. going to work or shopping. I've found the higher the SPF the tackier and thicker the consistency. If out in the hot sun for longer than about 4 hours, then you'll need a higher SPF.
Would also like back packaging photos of products please. Need to see ingredients to make decisions about if I'll buy.