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  • Writer's pictureSkin Guru

Pregnancy & Vitamin A: Separating Fact & Fables

Vitamin A: The miracle vitamin for skincare enthusiasts everywhere. But what about Vitamin A during pregnancy? For years it has been said that too much Vitamin A during pregnancy can lead to fetal abnormalities, so pregnant women should avoid it. But we're here to set the record straight.

Method Matters

It's important to understand the difference between oral intake of Vitamin A and topical application of Vitamin A.

While oral intake of excessive Vitamin A has been linked to fetal abnormalities, we must recognize that there is no enzyme in the skin that will absorb topical Vitamin A into the blood stream. There is only one enzyme mechanism that binds retinol onto carrier lipoproteins, and that enzyme exists in the liver, not the skin. Unless you are eating heaps and gobs of topical Vitamin A products, the Vitamin A will remain trapped in the skin (right where you want it).

In fact, in a study of 679 pregnant women, 235 were exposed to a variety of retinoids applied to their skin from early pregnancy, while 444 were not. There were no differences between the two groups in rates of birth abnormalities. Not a single child displayed features of retinoid embryopathy (birth defects caused by Vitamin A). 

The only exception in topical applications would be Retin A and other retinoic acid derivatives, which are prescription only and therefore much stronger.

Balance Matters

During pregnancy, a Vitamin A deficiency can cause fetal abnormalities; that's why doctors recommend a healthy, well-rounded diet that includes whole foods like carrots, sweet potatoes, spinach, and broccoli. However, excessive oral Vitamin A intake can also cause problems; this has been seen in cases of pregnant women taking Accutane, which is usually around 300,000 i.u. of oral Vitamin A.

Because Vitamin A serums are usually only applied to a small surface area of the body (face & neck), a typical application of a topical Vitamin A product would deliver approximately 35-350 i.u. of Vitamin A only. As we learned above, only trace amounts, if any, would be absorbed into the body. For comparison, an egg contains 260 i.u. of Vitamin A. Even if your body absorbed all the Vitamin A applied topically (which it doesn't!), you would take in the same amount of Vitamin A as you would get from eating an egg. 

What to Avoid

To be clear: Supplemental, oral intake of Vitamin A (in drugs like Accutane, for example) should not be taken by pregnant women. Pregnant women are also advised to avoid prescription Retin A and other other retinoic acid derivatives.

Final Thoughts

Proper levels of Vitamin A are necessary for a healthy pregnancy - not too much, not too little (think Goldilocks). Topical application of Vitamin A is not metabolized into the bloodstream, so feel free to use topical, non-prescription Vitamin A products without fear, and be sure to maintain a healthy, balanced diet full of whole foods and natural vitamins & minerals. As always, talk to your doctor to find out what's best for you.

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