Can I use pure vegetable oils as sun protection ?

At this point in time, the only two sunscreens recognized as such and really protecting against UV rays are mineral screens and chemical filters. 

Indeed, on the web, it is said that raspberry seed oil has an IP of 28-50 ""according to Anthony J. O'Lenick, author of ""Oils of Nature"""" but we do not know how he determined this. This oil is known to absorb a little in UV but from there to obtain an IP 30, nothing is less sure. In any case, we are not allowed to use this material as a sunscreen because it is not on the positive list of sunscreens in the cosmetics regulation.

Using vegetable oils such as raspberry seed vegetable oil poses health risks. 

As a reminder, mineral screens are titanium dioxide and zinc oxide, which are of natural origin.