我们将永远不会有关于安全数据对许多这些成分。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.
Retin A/Accutane, Retinoids, Vitamin A:Yes, the big baddies here are definitely the 2 prescription drugs listed first. Accutane is a巨大怀孕问题，因为它与许多不同的出生缺陷。事实上，大多数医生甚至不会是规定儿童育龄妇女，除非他们也节育或签署一份弃权。
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. Here’s a good同行关于怀孕维甲酸回顾文章。
注意Β-胡萝卜素is a Vitamin A derivative that is considered separately from the retinoids, and it is considered safe.
请注意，在理论和麻做CBD不have THC in them, it’s breed out of the plant is the official status. However, depending upon how it was processed many CBD oils will test positive for THC. But there are still the unknowns we haven’t decided about. I would not recommend using Hemp or Cannabis products while nursing or pregnant for that reason.
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.
•对苯二酚：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 thatAlpha Arbutin也是这一类。这些是更OB / Derms已经加入到他们的成分列表，以避免所有成分。
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 am worried about these ingredients as they have no safety data, and if they work the way some companies say they work, then I’m not sure I want them on my skin when I’m not pregnant, but definitely NOT when I am pregnant!
Those apple stem cells that are said to penetrate into your skin (which is a barrier by the way, how is a cell in a cream going to break the barrier function to penetrate deep into the dermis?), head to the dermis, where they “proliferate” (aka- multiply) and make the surrounding skin cells do stuff. If this really happened, how do those cells know where to stop? How do you know they aren’t being circulated and heading directly towards the placenta? And doesn’t that sound like apple cancer in your skin? I’d just avoid the whole thing.
对羟基苯甲酸酯是目前认为是安全的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.
我无法弄清楚如何成为一个成分有时就是上没有没有列出，因为不仅做你的body already make a ton of it，但它是一个大的分子。巨大。它是如此之大，它只是挂出在它是由点，太大了进入细胞，穿过细胞膜或旅行到其他地点。
Finally, I do want to point out that there is also moderation in all things. Many things can be more harmful especially in large amounts. I wouldn’t apply a lot of extracts or essential oils while pregnant. I’ve taken care of very ill children in my PICU due to this with “safe” oils such as tea tree oil.
Things I get asked about that I am not worried about