What kind of sunscreen is best for children? by bab

2013-08-31 05:12阅读：

http://blog.sina.cn/dpool/blog/u/1224992471

pediatric dermatologist
I recommend choosing a 'physical' or 'chemical-free' sunscreen made with zinc oxide or titanium dioxide. (I also suggest you keep a baby younger than 6 months out of the sun altogether whenever possible. When that's not feasible, be sure to protect your young baby with sunscreen.)
Unlike chemical sunscreens, which may cause irritation or allergic reactions because the skin absorbs the active ingredients, zinc oxide and titanium dioxide sit on top of the skin, forming a barrier against the sun's rays.
There's no evidence that chemical sunscreens are dangerous or toxic, but we just don't know enough yet about how young children react to the ingredients. Also, sunscreens with zinc oxide or titanium dioxide start protecting as soon as you put them on, whereas chemical products need to be slathered on 15 to 30 minutes in advance so the skin has time to absorb them.
If you do use a chemical-based sunscreen, do a patch test first to make sure your chi

ld won't have a reaction to it. Apply a small amount to the inside of the upper arm. If your child develops a rash or redness at the site by the next day, choose another formula instead.
You may have heard you should look for a 'broad-spectrum' product that protects against both UVA and UVB rays. Any sunscreen that contains zinc oxide or titanium dioxide will do this.
The sun protection factor (SPF) should be at least 15, but you generally don't need to go higher than 30: Over than that and you're getting smaller and smaller amounts of added protection – which, in a chemical sunscreen, means a higher dose of unwanted chemicals.
It's fine to use a 'children's' sunscreen, but don't go out of your way to buy one of these since they're usually not different from the adult versions.
Lay the sunscreen on thick, making sure every part of your child's body gets a good coating. Pay special attention to burn-prone areas like the ears, nose, back of the neck, and shoulders. Some sunscreens have a bright tint when you apply them and then fade to clear in a few minutes, making it easier to tell if you're covering every inch of your child's vulnerable skin.
Reapply sunscreen often. Waterproof sunscreens may be slightly hardier than other products, but don't trust a label that promises to protect for eight hours. That's only if your child stays perfectly still for the rest of the day! In the real world he'll need more sunscreen every two hours or every time he gets wet or is dried off with a towel.
Note that while zinc oxide and titanium dioxide are typically known as sunblocks, other sunscreens (whether they're based on chemicals or on ingredients that physically block the sun) may have the word 'sunblock' on the label. The best thing to do is check the label for ingredients.)

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