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Vitamin D: Why It's Important in Your Skin Care Business

By: Celeste Hilling
Posted: February 28, 2013, from the March 2013 issue of Skin Inc. magazine.
Mushrooms are an excellent source of vitamin D.

Mushrooms are an excellent source of vitamin D.

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Almost all of the United States’ milk supply is fortified with 400 IU of vitamin D per quart. However, foods made from milk, such as cheese and ice cream, are usually not fortified.

Vitamin D is added to many breakfast cereals and to some brands of orange juice, yogurt, margarine and soy beverages—check the labels.

Even if you get enough vitamin D internally, less than 1% of what is ingested ever makes its way to the skin. Thus, a yin-yang challenge. Getting enough vitamin D into your body is like having a gas tank that can never be filled. If you add a few drops of gas to an empty gas tank, will your car start? No. You have to put in enough gas to get the engine circulating.

This is the same for your clients. The body has to have vitamin D to make vitamin D. There is not a reserve of vitamin D; it constantly has to be replenished. Because it’s made in the skin, you have to refill vitamin D at a topical and internal level every day. The amount of vitamin D absorbed topically is different for each client. Almost all serums have a similar penetration level, which is into the upper layers of the skin. Encourage clients to focus on vitamins B, C, D and E for optimal skin health. Vitamin K is also great for the eye area.

Vitamin D and the sun

The body makes vitamin D when skin is directly exposed to the sun, and most people meet at least some of their vitamin D needs this way. Skin exposed to sunshine indoors through a window will not produce vitamin D. Cloudy days, shade and having dark-colored skin also cut down on the amount of vitamin D the skin makes.