A special tanning effect I can not tell, perhaps it is because our skin is already pre-tanned properly. Therefore, I can not really tell if the SPF is covered by 20 and is involved in the current temperatures and the autumn sunlight. In the autumn holidays we go to the Balearics, the sun is there also not quite as intense as in midsummer, but there I'm going to SPF 20 well may be more likely to test.
The ingredients were very set on chemistry and unmanageable ingredients and I'm no chemist. Since I can not really classify the different materials I advise to make anyone be there a little sly when he has to deal with skin problems. For us there was no allergic reactions nevertheless I make the beneficial effects of this sunscreen in question.