Flashback free foundation and waterproof mascara

Basically any foundation with spf gives flashback so maybe check for a foundation without spf also powders tent to give flashbacks so try a translucent loose setting powder , i'm gonna be using estee lauder double wear foundation it's awesome and laura mercier translucent loose setting powder . As for waterproof mascara any from maybelline or l'oreal waterproof ones work very well

I can't help much with the foundation (I have oily skin), but I love the Too Faced Better Than Sex waterproof version! It comes in a blue bottle instead of the pink one.

I used Revlon Photoready. It's available in drugstores. Some drugstores have a guarantee that lets you return makeup if you don't like it, so it would be risk free to give it a try if you bought from one of those.

I really love it! I hope it works out for you and that's awesome you got it for such a low price!!

May I ask what setting powder and primers you are using?

Are you using a finishing/setting spray?

Those products shouldn’t case any flashback. If you are getting flashback, try adding a light layer of setting powder after using your setting spray. Yes I said after.

Don’t use HD powders for photography, it also causes flashback. HD powder is only for filming.

My MUA exclusively uses Estee Lauder Double Wear.

This article by Huda Beauty suggests avoiding products containing Titanium Dioxide and Zinc Oxide (minerals used to provide SPF in natural and mineral based beauty products) and Silica (commonly used in HD powders, which some people use to "bake" and some people incorrectly use to set makeup). It suggested that chemical SPFs are usually not the culprit.

https://hudabeauty.com/the-makeup-mistake-you-dont-know-youre-making/

I'll also note that flashback is primarily a problem when direct flash is used, which means the flash is coming from the same direction as the camera and this generally doesn't result in flattering photos anyway. Most high quality wedding photographers will use bounce flash or off camera flash for more natural looking photos, so flashback in your wedding photos (assuming you hired a quality photographer) shouldn't be as much of an issue as it is with smartphone selfies.

Explained more here, plus lots of products tested: https://apracticalwedding.com/spf-flashback/