If you're over 50 and your serums don't seem to be doing much, the problem might not be the products—it could be the order you're applying them. In this episode, you'll learn the exact sequence to layer retinoids, peptides, vitamin C, and other actives so they actually penetrate your skin and deliver results. We'll cover the pH rules, the wait times that matter, and the mistakes that waste your money and time. This is for anyone who wants a smarter, more strategic skincare routine that works with mature skin, not against it.

• Vitamin C needs to go on first thing in the morning on dry skin, and you have to wait five to ten minutes before layering anything else. If you skip the wait, the pH gets messed up and the vitamin C won't work—it's like trying to bake a cake without turning the oven on.

• Retinoids should alway ...