Sawyer Stay Put Bonding Base SPF 30 Sunscreen

皮肤上面的防晒霜比皮肤下面的防晒霜需要更频繁地重新涂抹，但每种防晒霜的更换都取决于几个环境因素和防晒霜的质量。请记住以下影响防晒霜效果的因素：防晒霜类型：薄膜、蜡或粘合基底一天中的时间：日晒高峰期为上午 10:00 至下午 3:00：日晒前的皮肤：春季和初夏的皮肤比晒黑后的皮肤更容易受到伤害：鼻子、耳朵、前额、头顶、脚顶和肩部需要额外的防晒霜和注意事项，因为这些部位的皮肤保护层较少：高海拔地区：海拔 6,000 英尺以上会大大增加您暴露在阳光下的机会：低纬度地区：低纬度地区：离赤道越近，阳光强度越大。经常摩擦或冲洗：经常擦干毛巾或滑水比其他活动更快地去除防晒霜：大量出汗：可能会导致防晒霜迁移，尤其是皮肤上方的防晒霜：如果您所处的环境中存在上述几种情况，您可能需要考虑使用更高防晒指数的防晒霜，或更密切地监测您的皮肤，尤其是皮肤较薄的部位。如果您所处的环境中存在以上几种情况，那么您就真的需要密切关注自己的皮肤，并采取其他预防措施，如更多的防晒衣物、帽子，以及在高峰期远离阳光。

They can. Residual sunscreen on the skin can affect your grip and it can reduce your ability to sweat, which is your body’s mechanism to transfer heat created by your exertion. By not losing adequate heat, your internal body temperature rises, which depletes your energy levels and causes many organs to focus on heat management functions rather than normal support functions. The newer sunscreen formulations work below the skin and allow the skin to breathe and sweat much more efficiently, thereby leaving you with more energy to perform your athletic activity.

If properly applied (1 1/4 ounces per full body coverage) you seldom need more than an SPF 15. However, most people put on only half of the recommended FDA standard. A SPF 15 applied at half rate is effectively a SPF 7, better than nothing but still not a true sunscreen. If you can discipline yourself to put on a generous amount, then after it has fully absorbed into the skin, you will benefit by having less chemicals in the skin which allows your skin to breathe easier. If you just can’t bring yourself to lather it on then jump to a SPF 30 which, when half applied, still leaves you with an effective protection of a SPF 15. If you’re sensitive to oxybensone or benzephenone then stick with the SPF 15 which generally does not include that sunscreen.In planning a trip, use the 1 1/4 ounces per person per day figure as a guideline. If you’re building a tan, or reducing your skin exposure via clothing, then reduce your anticipated need accordingly. Keep in mind that a soaked cotton shirt yields protection equivalent to only a SPF of 4 to 8 only and therefore you may need to wear a sunscreen below the shirt if exposed to water or sweat.

Yes. We would recommend applying the sunscreen first. The trick to a comfortable and effective application of sunscreen it to put it on first thing in the morning or at least 10 minutes before sun exposure to help it fully absorb into your skin. Our SPF 30 sunscreen is a bonding base formula which makes it very breathable while still very effective. You can learn more about this formula at sawyer.com/sunscreen

如果在涂抹过程中将乳液擦入眼部，所有防晒霜都会灼伤眼睛。一旦涂抹在凉爽干燥的皮肤上，较好的防晒霜（如我们的粘合基配方）就不会迁移，即在出汗或在水中时不会从前额流到眼睛里。设计用于皮肤上方的旧配方在遇水或出汗时仍有可能迁移。