I’m not sure but I’m here for it!! I also never use to tan. I’d always burn. I was told those with blonde hair, blue eyes and light coloured skin I would automatically burn but for the last two summers since changing my diet I have had the best deepest tans of my life. A couple times I’ve stayed out in the sun too long enjoying the glorious heat on my skin right out of the gate and did burn but that was my own fault and would happen to anyone.