Hello G.,
I can help shed some light for you! I'm a corporate employee for an international salon/spa company. I've also been in the beauty industry for many years in which I've worked with mineral makeup extensively.
First I have to start with titanium dioxide is NOT linked to cancer!!! There are 2 types of sunscreens, physical and chemical. Physical means it's a natural ingredient that naturally blocks the sun and chemical, well it pretty much says it all, it's a chemical that's added for sun protection. Chemicals have very high reaction issues with skin sensetivity concerns, they can burn and tingle when applied, they don't last very long, some are not broad spectrum (UVB and UVA), and THESE have been known to be linked to different cancers. Putting chemicals on yourself, esp when applied daily, is never a good thing because they are absorbed into your body. However, minerals including titanium dioxide, magnesium carbonate and zinc oxide are natural broad spectrum suncreens (UVA and UVB). They "float" on the surface of the skin so they're never absorbed yet provide a very long lasting, natural and non reactive protection. Mineral makeuep is about the only thing a person with extremely sensetive skin can use because of this reason. They also allow the skin to breath so it can heal through the makeup and have about a 0% incident of ance aggrivation because again, it's not absorbed into the skin; ie: the molecular structure is too large to penetrate the skin. All in all, mineral makeup is a good match for practically everyone.
2 points: 1) any mineral makeup is better than non mineral makeup and 2) all minerals are not created equal though.
If you're comparing a non-mineral with a mineral makeup, you're much better off with a mineral product. Depending on the brand, it shouldn't contain any chemicals and as I've said, it's natural. Non-mineral makeup can have everything from chemicals to petro chemicals to pore clogging oils to something called propylene glycol (which is used in antifreeze and other de-icing products...yuck!).
BUT, all minerals are not the same. Many drug store products I've looked at that are advertised as mineral have all kinds of things in the ingredients label that certainly are not minerals so in reality, they're only partially mineral. Bare Minerals is a nice product because it's 100% mineral with no fillers. The color selection is pretty good and they're a very well known and reputible company. The only thing I know about them is that they contain something called bismuth oxycholoride (sp?). It's a mineral but it's a binding ingredient and also a potential irritant to the skin. I do know a lot of women who use it and like it though. I also know Mario Tricoci's usues mineral makeup but they blend their's to match your skin exactly which I think is a pretty interesting idea. As far as I know, it's 100% mineral also and again, I find the idea of custom made makeup very alluring.
I hope this information is helpul. I really encourage you to choose a mineral makeup over a regular makeup product but which you choose is up to you. It really is a great way to enhance your skin but by doing it naturally just beware of drug store mineral makeup. Please let me know if you have any other questions. I'm happy to help.
Sincerely,
S.