Baby sunblock

There are a few misconceptions connected with baby sunblock that I would like to share:

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  • The term Sunblock. One of the first things to understand about sunscreen is that officially there are no sunscreens out there that block the sun's rays completely. So anything branded as a baby sunblock must never be seen as something that will block out all the sun's rays once applied. This has been an assumption made by many consumers in the past and thus the Food and Drug Administration (FDA) has actually now legislated that no sunscreen manufacturer can brand their sunscreen as a "sunblock"
  • The ingredients. Another important note is that many brands of sunscreen have a baby sunblock as part of their product range that is actually no different at all to the normal products in terms of ingredients and so should not be treated any differently. So, although it's fine to use a "baby sunblock", don't necessarily go out of your way to buy one, unless you inspect the ingredients and know they are worthwhile. The EWG (Environmental Working Group) have gone out of their way in their latest sunscreen report to identify some of these culprits
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  • High SPF = Baby sunblock. Many people buy the highest possible SPF thinking this will provide the best possible protection for their baby. Using a sunscreen with an SPF of anything over 40 does not provide you with much more of a percentage in protection. If you look at the chart below you will see how as the SPF curve flattens, so you only acquire a very small percentage more protection as the SPF increases. Also, there is no such thing as 100% protection. The FDA has recently ruled that sunscreens can now label up to a maximum of SPF50 and the Australian authorities have just allowed their sunscreens to increase to a maximum of SPF50. (from SPF30)

UVA protection

Beyond these misconceptions, the best recommendation when choosing a sunblock for your baby, is to choose a "physical" or "chemical-free" sunscreen made with zinc oxide. This is not only because it is a non-toxic option from all the sunscreen possibilities, but because it provides excellent protection from the UVA rays and the UVB rays and not only the UVB rays. e.g. high SPF and no UVA.

The UVA rays penetrate deeper into the skin layers, potentially causing the DNA damage that not only leads to skin cancer, but the dreaded melanoma. UVB rays are the ones that cause the skin to burn, as well as damage to the DNA. With only protection from the UVB rays, the skin will not turn red and therefore not caution you to get out of the sun. This means you stay out longer in the sun than you would normally without any sunscreen. It also provides confidence that the baby sunblock has worked. But in reality it has allowed the UVA rays a longer time to do their damage.

Baby skin

Most importantly, it is very advisable to keep a baby younger than 6 months out of the sun altogether whenever possible. Their skin is just too fragile for the harsh effects of the sun. However, if it is just not possible to keep out the sun, make sure you protect your young baby's exposed skin with a quality sunscreen, plus good quality sun protective clothing.

A zinc oxide baby sunblock will sit on top of the skin, forming a barrier against the sun's rays, which is far preferable to the chemical sunscreens, which are absorbed into the skin. This also allows you to lather the sunscreen on generously, whereas if it were a chemical sunscreen, I would be extremely hesitant to lather it on that generously knowing that the chemicals will be absorbed into the skin. Sunscreens with a zinc oxide physical barrier start protecting your baby as soon as you put them on. Chemical sunscreens, however, require 15 to 30 minutes in advance of being exposed to the sun, to give the skin time to absorb them first. This also means that when you re-apply when at the beach or such, the baby sunblock will be effective immediately.


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