I’m sure if you’ve been reading my pregnancy skin care series, you know that skin care while you’re pregnant is a bit different than regular skincare. Here I’m addressing specific skin care ingredients and why you might need to avoid them while you are pregnant.
There are definitely some ingredients that you should avoid while pregnant due to possible birth defects. The placenta is basically a big sieve, it lets things through in a very non-specific (and size based) fashion. Your baby is busy doing things like making organs, which means that small mistakes early on can have big effects later on.
While your skin is a barrier, we do know that some of the products you put on it will be well absorbed and those ingredients can reach the blood stream. Which means they can reach the placenta and therefore your baby. We will never have data regarding safety for many of these ingredients. The studies just wouldn’t be ethical to complete (would you want to be volunteering to try something out and see if it affects your baby? Not me!) so we just make do with the information we do have and try to make some educated guesses.
Pregnancy Skin Care Ingredients to Avoid
• Chemical Sunscreens: They’ve been found in your blood stream, no one really knows what they do… it’s better to stick with the physical sunscreens which sit on the surface of your skin.
• Retin A/Accutane, Retinoids, Vitamin A: Yes, the big baddies here are definitely the 2 prescription drugs listed first. Accutane is a huge issue with pregnancy as it is linked to many different birth defects. In fact, most physicians won’t even prescribe it to women of child bearing age unless they are also on birth control or sign a waiver.
While Retin A and over the counter retinoids are not as strongly linked to birth defects as Accutane, they are all the same class of drug and as such are on pretty much every MD’s list of no-no ingredients. The retinoids are Vitamin A derivatives, and I’ve seen quite a few lists advising to avoid topical Vitamin A as well, so it’s made my list. Yes, there is still Vitamin A in your diet and your prenatal vitamin. It should be there and can take care of your needs. But, no need to add even more in skin care.
Note that Beta-Carotene is a Vitamin A derivative that is considered separately from the retinoids, and it is considered safe.
• All Hydroxy Acids: From citric acid to salicylic acid, pretty much all of the hydroxy acids either are not safe or simply don’t have enough information to say “sure, go crazy and rub this all over you.” So, the official word is that all of they hydroxy acids, alpha and beta, have pregnancy categories that recommend avoidance, with 1 exception.
The exception is Lactic Acid, which your body makes on its own (I spend a lot of time in the PICU trying to prevent little bodies from making it, but that’s a whole different issue). Lactic acid has been shown to be fine in pregnant animals, but we don’t have evidence in humans. So, the official recommendation is to use with caution if really needed. Personally, I’m avoiding it in everyday skin care items but did let my esthetician use it in my facial a few weeks ago.
I’ve seen a few books that say Glycolic Acid is fine, and there are many physicians that tell this to their patients. However, its official pregnancy category is that there isn’t enough info so should be avoided. The “correct” type of study to prove the safety of Glycolic Acid will simply never be done, so many physicians have looked at the current evidence and feel fine recommending it. I personally avoided it while pregnant and it’s one I look for when recommending products as safe or not.
I also want to point out that Citric Acid is found usually in very small amounts at the very end of ingredient lists. It is typically there to help modulate pH in a product. You likely expose yourself to more Citric Acid in one glass of OJ than you would in a year of using such a product. I avoided it in my first 2 trimesters, but lightened up in my third trimester when I realized I was being a bit silly.
• Dihydroxyacetone: Also known as DHA, this is the active ingredient in sunless tanners. The jury is still out on whether sunless tanners are safe. I’ve seen sources that say yes (notably the NHS in the UK), but many that say no. My own OB was anti-sunless tanning while pregnant, it was listed on all of the handouts I was given by the University Clinic, most clinics in the US will state to avoid sunless tanners while pregnant. There is a risk of liver damage due to DHA, even when not pregnant.
I can tell you that my skin has taken on some interesting dry patches while pregnant, and it would be pretty hard to get an even sunless tan. This is a great time to embrace the pale, so I’m going with that.
• Hydroquinone: Though I found it in several drug references as safe in pregnancy, these ingredients were listed on enough lists of things to avoid due to unknown risks that I’m avoiding them. Note that Licorice Root Extract and Alpha Arbutin are also in this category.
• Kojic Acid: This ingredient is sometimes used to help lighten the skin, but it has shown up on multiple lists of items to avoid. I can’t find the reason why, but I’m thinking lightening my skin shouldn’t be a priority now anyways.
• Benzoyl Peroxide: Again, I can’t find this in any actual drug reference books and a literature search didn’t turn up anything of use, but it is listed over and over on lists of things to avoid while pregnant.
• Laser Therapy: I’ve seen laser therapy, whether for zapping away birth marks, tattoos or hair, listed over and over on lists of things to avoid while pregnant. As well, most places that offer lasers refuse to treat you if you are pregnant.
I would likely reserve lasers (and at home machines) to be used under the direction of your physician. There is some evidence in the medical literature that laser treatment is safe during pregnancy.
• Salicylates: This should include topical willow bark and should be avoided. I also include the related chemical sunscreen ingredients in this list.
Safe skincare Ingredients During Pregnancy
There are a few ingredients that I get asked about frequently. Based on the evidence there’s no reason to avoid these ingredients. There might be random websites that say to avoid them, some of them I can’t even locate the websites but I get asked a lot. These ingredients are safe.
• Parabens: since that seems to be asked over and over. They are currently considered safe by pretty much everyone except the EWG, who have a big propaganda machine and I don’t think they interpret most studies correctly. If you disagree with me about that so be it, I’m just stating my opinion since I’ve been asked over and over. Parabens considered safe for pregnancy and breast feeding. BUT… if an ingredient makes you uncomfortable you should just avoid it. There are so many products on the market these days that it is very possible to do so without any issues.
• Hyaluronic Acid use during pregnancy: Hyaluronic acid is basically the same thing as Sodium Hyaluronatebody already make a ton of it, but is a big molecule. Huge. It is so large that it just hangs out in the spot where it is made, much too large to get into cells, to pass through membranes or travel to other locations.
Much is the same for any Hyaluronic Acid that you apply to the surface of the skin. Your skin has very tight membrane junctions between those cells on the surface. Hyaluronic Acid can’t get through and just sits there on the surface of the skin. I’m always very suspicious when a company tells me that their HA is different and can get it. It’s a big red flag.
So, since it can’t get in, and your body is already making it anyways, definitely feel that it is safe to keep using HA in your products. It just sits on the surface and helps hold moisture there. We need it to live up to pregnancy glow expectations!
• Sulfur: This is often found in acne treatments, and I haven’t really been able to find much info about safety in pregnancy. Be aware that if you’re allergic to sulfa drugs you should avoid this ingredient, but I’ve seen it as the active ingredient in many “pregnancy safe” acne treatments and is probably fine.
Please limit the discussion in the comments to ingredients only. If you want to ask about a specific product you should go to the pregnancy skincare guide and from there go to the appropriate post, such as sunscreen, foundation or skincare.
Don’t forget to check out the other articles in my Pregnancy and Nursing Skin Care Guide!