Dr. Janelle Vega, Dermatologist with Baptist Health South Florida, says you need to reapply sunscreen every hour if you are in contact with water, like in a pool or the beach. "If you're not in the water every two hours it is appropriate for a reapplication and the amount of a shot glass full is about right for your full body," she explains. She recommends avoiding the use of a spray on your face, because then you can inhale the particles, so you don't want to put a spray on your face.
Dr. Janelle Vega, Dermatologist with Baptist Health South Florida, says dark spots, and even deeper wrinkles are caused by sun damage. "I really encourage my patients to just make a commitment to healthy skin, stay out of the Sun and then we can work together in terms of using topicals, and office treatments to make them look better," she explains.
Dr. Janelle Vega, Dermatologist with Baptist Health South Florida, says when you are looking at the labels for a sun protective hat, look for UPF 50, which is a universal protection factor. "You want to have at least three inches, so it's covering everywhere. If you're wearing a baseball cap, it is only going to cover the front part of your face, not the sides," she explains. She also points out it is important to protect your hands from the sun.
Dr. Janelle Vega, Dermatologist with Baptist Health South Florida, says sunscreen is very important, because the sun damage is cumulative: "From the day you're born until the day you die, you have X amount of sun exposure. That's something that happens every day whether you're getting in and out of your car or you're going to the mall". She also explains UVB is what is measured when you go to buy a sunscreen; this is what is going to burn you when you are out for a long period of time. "The problem is that UVA also affects your skin, so as an educated consumer you have to make sure that your sunscreen is protecting you from both," she recommends.
About buying the right sunscreen, Dr. Janelle Vega, Dermatologist with Baptist Health South Florida, recommends looking for the SPF factor, which has to be at least 15. "I usually encourage people to use 30 or more, because we always tend to put less than what we need. So, if you're starting off with a higher SPF factor you're in a better position for putting on enough". She says people with disorders that are sensitive to heat, like melasma, want to stick to sunscreen that are physical blockers, because that absorbing of the energy can create heat.