"I am so glad I came across Z Blok prior to our trip to the Great Barrier Reef. It stayed on for hours and did not sting our eyes. My father and daughter applied it before an entire morning of kayaking and snorkeling in the harsh Australian sun and it protected them all day. The whole family really loved it. The lip balm is really good too. Thank you for making a high quality sunscreen!"
1) Only buy mineral-based sunscreens with zinc oxide and/or titanium dioxide. They will generally rub in clear and you avoid the risk that chemical-based sunscreens pose of needing to be absorbed into the skin to be effective. Mineral-based sunscreens are highly water resistant and stay on your skin longer in water. Be sure to check the active ingredients on the top of the back of your sunscreen before buying it. The FDA requires the active ingredients to be listed at the very top in the "Active Ingredients" box.
2) Mineral-based sunscreens start to work right away because they stay on top of the skin and block and reflect UV rays. Chemical based sunscreens need time to be absorbed into the skin to become effective. That takes time. Note that all sunscreens are required by the FDA to recommend applying 30 minutes or so in advance, including mineral based sunscreens.
3) Never buy sprays. They are chemical-based, there is a lot of waste and there is definitely a risk of breathing it into your lungs. The waste falls to the ground and causes slippery pool or boat decks for example. Any spray on glossy tiles (such as in bathrooms) is especially dangerous in terms of the risk of someone slipping, falling and causing serious injury.
4) Apply sunscreen at home before going out and keep some at home in a temperature-controlled environment. "Stick" products are great for re-applying later in the day because your hands never touch the product. Plus, they are easy to pack in a small bag or cooler and keep it out of the sun along with lip balm.
5) It is even more important to apply sunscreen to children before going outside because they get focused on the activity of the day and get impatient when you get out. Make the activity the reward for doing the right thing prior to the activity.
6) UV rays penetrate automobile glass as well. if you are traveling by automobile apply sunscreen at home first. Ask any dermatologist and they will tell you that sun damage over time to left side of a drivers face well exceeds that of the interior facing right side.
7) Remember that higher prices and marketing terms you do not understand do not make a sunscreen more effective or even equally as effective as a good mineral-based product.