I cannot tolerate any anti aging serums. I have a few wrinkles on my forehead and am a T by genetics (my mom is 53 and still looks 35). I want to prevent as much as possible. With my rosacea and hyper sensitive skin I cannot use any vit c or acids. What is everyone using? My La Roche Posay Toleriane is well tolerated but provides nothing in the way of anti aging! I tried retinol and got so red that I don't know if it's worth it or not. I only use it once a week and a very small amount. Should I work through the retinol? Can I be harming my skin if I work through irritation, or is retinol a good pay off? ???