With so many sunscreen choices out there, I wanted to give you a rundown of what to look for to keep you protected this summer. I\u2019ve mentioned it before, but my biggest health and beauty mistake of my youth was not wearing sunscreen. I have brown spots and skin damage to show for it. I know better now, so I make sunscreen an integral part of my beauty routine year-round. Here\u2019s what to look for and the rules I follow in my guide to summer: sunscreen explained. Sunscreen Type: Chemical vs. Physical There are two types of sunscreen that come in a lot of different formulations: physical and chemical. Physical blockers are natural minerals that are ground down to fine powders. There are two types of physical blockers, zinc oxide and titanium oxide. \u00a0The benefit of physical blockers is that they do not decompose with sun exposure. There are currently 22 chemical blockers on the market; these are made in chemists labs.\u00a0 What Number SPF Do I Need? Choose a broad spectrum SPF 30 or higher. An SPF 30 blocks 97% of all UVB rays (the ones that burn your skin). But here\u2019s the catch, an SPF 50 only blocks 98% of all UVB rays. A lot of companies advertise very high SPF numbers, which many people think are better, but no sunscreen can block 100% of the UV rays. Most dermatologists suggest an\u00a0SPF 30 to 50. Types of Sunscreen There are so many different types of sunscreens. You will have to decide what works best for you depending on the situation. Also, check out the 7 sunscreens that are Consumer Reports approved\u00a0for 2014. Sticks Best for: Ears, Lips Sticks are best for hard to reach and areas you probably don\u2019t want to put sunscreen, like your lips and ears. Sticks\u00a0are also a good choice for children\u2019s faces because the waxy formula\u00a0is less likely to run into their eyes. Try: Stick Lotions Best for: the first coat and dry skin Lotions tend to be more foolproof than sprays or sticks. Because they are generally white, you can see where you are applying them. Lotions tend to give a more even and fuller coverage than other types of sunscreen, making it the best choice for the first coat of the day so you don\u2019t miss any spots. Try: For Baby; First Coat Sprays Best for: touch-ups Spray sunscreens are quick and easy to apply, but people often don\u2019t apply nearly enough or spray from a distance too far away. Also, there are concerns about inhalation. I personally do not plan to use spray sunscreen for my kids for this reason, but will use it as a back-up if I don\u2019t have another option. If you do choose a spray, I suggest using an all-over lotion first because you can see where you are applying it so you are less likely to miss spots. Then, use a spray for touch-ups throughout the day and for the hard-to-reach spots (like your back). Try:\u00a0Spray Gels Best for: oil-prone skin Gels are lightweight and tend not to be greasy and oily like lotions can\u00a0be. Try: Gel Makeup Best for: daily use, not to replace sunscreen Many foundations, BB creams, concealers and powders contain some SPF (usually ranging from 15 to 45).\u00a0 These products are great for an added level of sun protection, but they should not be used to replace an SPF for your face or neck. Just as with sprays, people tend not to use enough of their makeup to completely protect their\u00a0faces\/necks from the sun. Plus, makeup wears off throughout the day,\u00a0so you\u2019re 7am foundation is not going to protect you on your after-dinner walk. Try: Powder, Foundation, BB Cream, Concealer How to Apply Sunscreen Correctly It may seem obvious, but most people do not apply nearly enough sunscreen. Experts advise to apply at least 1 oz. 30 minutes before you will be\u00a0out in the sun, so the ingredients have time to absorb and bind to the skin. If you are out in the sun for an extended period of time, you should reapply at least every two hours. If you are swimming or sweating, you should apply even more often. Is My Sunscreen Waterproof? No. The FDA ruled that companies can no longer call sunscreen waterproof. The new categories are \u201cwater-resistant\u201d or \u201cvery water-resistant\u201d, meaning 40 minutes or 80 minutes, respectively. What type of sunscreen do you use most often? Do you have a brand you can't live without?