Settle in, I’m about to get pretty long-winded about one of my favorite topics: skin care. Sun care is the most important step in any skin care routine, period. If your daily routine doesn’t include a good sunscreen, none of your other products really matter. “An ounce of prevention is worth a pound of cure.” First, let’s talk sun rays: short wave UVB rays affect the surface of the skin and cause sunburn, and long wave UVA rays go deep into the skin and cause wrinkles, brown spots and discoloration. Broad-spectrum protection is your best defense against skin damage, certain types of skin cancer, and premature aging. There are two types of sunscreen, physical (or mineral) and chemical. Chemical sunscreens have active ingredients that absorb UV radiation and prevent it from penetrating the skin. Physical sunscreens use natural minerals — zinc oxide and titanium dioxide — that physically “block” the sun’s rays by reflecting and scattering them away from the surface of the skin. I usually prefer physical sunscreens for my face, neck and chest; they’re gentler on sensitive skin than their …