Is salicylic acid safe during pregnancy?

What do medical bodies actually say about salicylic acid in pregnancy?

Two bodies have published on salicylic acid in pregnancy and they do not say quite the same thing. The American College of Obstetricians and Gynecologists names topical salicylic acid among the over the counter ingredients that can be used during pregnancy, alongside topical benzoyl peroxide, azelaic acid and glycolic acid, with no concentration, no surface area and no trimester attached. The American Academy of Dermatology is the body that attaches a number.

The AAD’s pregnancy skin care page carries three lists: things to avoid, things to use sparingly, and a routine it recommends. Salicylic acid is not on the avoid list, which holds retinoids, hydroquinone, finasteride, spironolactone, the tetracycline antibiotics and 5 fluorouracil. It heads the second list instead: salicylic acid at high doses (greater than 2%), with the instruction to discuss it with your dermatologist and limit how often you use it.

The AAD’s acne page is gentler and says the same thing in different words. Salicylic acid is generally considered safe when used for a limited time, so talk to your obstetrician or dermatologist first. That page is also unusually honest about why every answer here is hedged: researchers don’t give pregnant women medications, so there are no studies to tell us what happens when pregnant women use a treatment. What exists instead is animal work and the experience of women who used something anyway.

The 2 per cent figure is the AAD’s. ACOG has published no number for salicylic acid at all. Any page telling you that ACOG limits it to 2 per cent has moved one body’s judgement onto another body’s letterhead, and it is the most repeated error on this question.

Why is salicylic acid treated like aspirin in pregnancy?

Salicylic acid is the molecule aspirin was built from, and that is where the worry comes from. StatPearls, on the NIH’s own bookshelf, describes aspirin as a synthetic derivative of salicylic acid distinguished by the addition of an acetyl group. Both go back further than either name: salicylates are derived from the bark of the willow tree.

The same page draws the line that matters. Salicylic acid is mainly used topically for its keratolytic effects in conditions such as acne, warts, and seborrheic dermatitis, while aspirin is swallowed and works on platelets, pain and fever. One acetyl group separates two molecules that are used in completely different ways, and every published pregnancy instruction about this family is written about the one that is swallowed.

The oral rule is real and it is specific. In 2020 the FDA warned that using non steroidal anti inflammatory drugs around 20 weeks or later in pregnancy may cause rare but serious kidney problems in an unborn baby, leading to low amniotic fluid, and noted that labels already warn against use at 30 weeks and later because of the additional risk of premature closure of the fetal ductus arteriosus. Aspirin is the first entry in the FDA’s own table of the drugs this covers, and two other salicylate medicines, salsalate and choline magnesium trisalicylate, are further down it. Every drug on that table is taken by mouth.

The family is not banned from pregnancy either, which is the half nobody repeats. The FDA names one exception in the same communication: the use of the low 81 mg dose of the NSAID aspirin for certain pregnancy-related conditions at any point in pregnancy. ACOG goes further than permitting it. With the Society for Maternal Fetal Medicine it recommends low dose aspirin at 81 mg a day for people at high risk of preeclampsia, initiated between 12 weeks and 28 weeks of gestation (optimally before 16 weeks) and continued daily until delivery. StatPearls adds that low dose aspirin in the third trimester has not been associated with ductal closure.

One review has looked at the topical question directly, and it is careful about what it is doing. Writing in Canadian Family Physician, the authors note that large studies of women who took low dose acetylsalicylic acid in pregnancy found no increase in the baseline risk of adverse events, and then say the quiet part: no studies have been conducted in pregnancy on topical use, however, as such a relatively small proportion is absorbed through the skin, it is unlikely to pose any risk to a developing baby. That is a reasoned inference from absorption, clearly labelled as one, and it is the strongest thing anybody has published about the question in the title.

Nobody has published a trimester rule for topical salicylic acid. The trimester language attached to it online is borrowed from oral NSAIDs, which is a different medicine given a different way, and borrowing it turns a request to use something sparingly into a prohibition no body issued.

How much salicylic acid is in your product?

The AAD drew its line at 2 per cent, and which side of it your product falls on is decided by what kind of product it is rather than by the brand. Salicylic acid is sold at anything from half a per cent to forty, and the American regulations fixing those bands are public.

An acne product: 0.5 to 2 per cent

Over the counter acne treatment in the United States is sold under an FDA monograph, and the monograph names the permitted actives and their strengths. For this one it is salicylic acid, 0.5 to 2 percent, in the same list that puts benzoyl peroxide at 2.5 to 10 per cent and sulfur at 3 to 10. So an acne wash, pad, gel or lotion bought off a shelf and labelled for acne sits inside the band the AAD’s line closes, with 2 per cent as the ceiling rather than the norm. That is the product the great majority of people asking this question are holding.

A wart or callus treatment: 5 to 40 per cent

The same ingredient has a second monograph, and the numbers in it are an order of magnitude higher. A wart remover may carry salicylic acid 12 to 40 percent in a plaster vehicle, 5 to 17 per cent in a collodion like vehicle, or 15 per cent in a karaya gum plaster. Nobody has published a pregnancy rule for those. ACOG’s list sits under a heading asking whether over the counter medications can be used to treat acne, so reading it as a clearance for a forty per cent plaster is reading it past what it says. It is also a small area for a short time, which cuts the other way. This is a question for the person looking after you rather than one this page can answer.

A peel: 14 to 20 per cent and up

Salicylic acid in a peel is a different exposure again. StatPearls puts it at 14% salicylic acid inside Jessner solution, and names a combination of 20 per cent salicylic acid with 10 per cent mandelic acid among the keratolytic formulations. The published contraindication does not quite reach it: the same page lists pregnancy or breastfeeding among the precautions specific to medium and deep peels, and puts low potency salicylic acid in the very light band. So the one firm statement anybody has made about peels in pregnancy is about peels deeper than this one usually is. That is a gap rather than a clearance, and a peel is booked with a person who can be asked.

And how much skin it goes on, which nobody has quantified

Concentration is only half of a dose. The absorption figure the Canadian Family Physician review gives for topical salicylic acid is a range rather than a number, undetectable from up to 25% in normal skin (depends on vehicle, pH, strength, and quantity applied), with levels possibly higher on damaged skin. Quantity applied is in that list, and damaged skin is the reason a body lotion on scratched or eczematous skin is not the same proposition as a face wash. A 2 per cent cleanser rinsed off a face and a 2 per cent lotion left on both arms, the back and the chest twice a day are the same percentage and are not the same exposure. Nobody has published a surface area limit for salicylic acid in pregnancy. The AAD’s word is sparingly, and that is as precise as the published guidance gets.

How do you find salicylic acid on an ingredient list?

Salicylic acid is not always printed as salicylic acid. The FDA’s own page on beta hydroxy acids says the ingredient may be listed as salicylic acid (or related substances, such as salicylate, sodium salicylate, and willow extract), and records that it is the beta hydroxy acid most commonly used in cosmetics.

Willow is the one that catches people, because it reads as botanical rather than as an active, and the StatPearls history above is why it is not: willow bark is where salicylates came from in the first place. The FDA’s page adds a footnote worth knowing if you are trying to match a label to an article, which is that from a chemist’s perspective salicylic acid is not a true beta hydroxy acid at all, and is called one because the industry does.

Truva’s catalogue carries the relatives as their own pages, because that is the form they appear in on a bottle: betaine salicylate, salix alba bark powder, which is a willow bark, methyl salicylate, and a BHA entry for labels that say only that. Each one carries its own verdict for each of the six profiles, which is the point of listing them separately rather than folding them into one. The page for the ingredient itself is salicylic acid, and it reads Caution Advised in pregnancy and when trying to conceive, and Safe to Use while breastfeeding, postpartum, with PCOS and for general use.

Is salicylic acid safe while breastfeeding?

Breastfeeding changes the question from how much to where. The NIH’s Drugs and Lactation Database considers topical salicylic acid safe to use during breastfeeding, because it is unlikely to be appreciably absorbed or to appear in breastmilk, and attaches one condition that is entirely about placement.

The condition is worth quoting whole, because it is more specific than the summaries of it: avoid application to areas of the body that might come in direct contact with the infant’s skin or where the drug might be ingested by the infant via licking. That rules out the chest and anywhere a baby’s face rests, and it has something to say about hands that go near a mouth. It says nothing about a face, which is where an acne product usually goes, and it is a rule about contact rather than about milk.

The FDA’s beta hydroxy acid page points the same way from the other direction. Among its precautions is the instruction to avoid using BHA-containing products on infants and children. That is about what goes on the baby, not on you, and it is why the lactation instruction is written about transfer by contact.

It is also worth knowing what kind of verdict that is. LactMed’s record for salicylic acid opens by saying no information is available on clinical use of it on the skin during breastfeeding, and its four evidence sections, maternal levels, infant levels, effects in breastfed infants and effects on lactation and breastmilk, all read that relevant published information was not found. The clearance rests on an absorption argument rather than on measurement. That is still a clearance from a named body, and it is not the same thing as a study.

Swallowing a salicylate is a different matter here too. StatPearls records that after aspirin is taken, salicylic acid is excreted into breast milk, with higher doses producing disproportionately higher milk levels, and that while Reye syndrome is associated with giving aspirin to infants, the risk from salicylate reaching them through breast milk remains unknown. None of that is about a face wash, and the distinction is the same one the diagram above draws.

Does the answer change when trying to conceive, postpartum or with PCOS?

Trying to conceive, postpartum and PCOS are three more profiles and they resolve three different ways: one has nothing published about it, one returns you to the general answer, and one does not change what you may use but makes it much more likely you are using it every day.

If you are trying to conceive

Trying to conceive has no published rule, for this ingredient or for any of its relatives. Every instruction on this page is written about pregnancy or about breastfeeding, and the reason the question exists at all is the window in which somebody is pregnant before they know it. Truva marks salicylic acid Caution Advised on a trying to conceive profile, and that is a judgement about timing, made because there is a pregnancy instruction worth being early for. It is not a finding, and calling it one would be the same move this post spends its first section undoing. The two medicines that do carry a published instruction to stop before you conceive are both prescriptions, and neither one is a cream.

If you are postpartum and not breastfeeding

Postpartum without breastfeeding returns you to the general answer, with the whole range available and the ordinary irritation warnings the ingredient always carried. It is worth saying plainly because postpartum acne is common and a lot of advice written for pregnancy gets carried past the point where it applies. The postpartum list is the shortest of the five in the catalogue, and salicylic acid is not on it.

If you have PCOS

PCOS does not change what may go on your skin, and it changes how often this ingredient is in use. NICHD lists among the symptoms of PCOS persistent acne that does not respond well to common treatments, and separately lists oily skin. Both point at a daily salicylic acid routine rather than an occasional one, which is exactly the profile that runs into the paragraphs above the moment somebody with PCOS becomes pregnant. That collision is common and almost nothing is written for it. Our comparison of glycolic acid and salicylic acid covers which of the two acids suits which complaint, which is the other half of the decision.

This split is what Truva was built to make. The comparison pages set out why a scanner that never asks your situation cannot make it.

When should salicylic acid go to a doctor rather than a search box?

Anything above 2 per cent is the AAD’s own answer to that question: use it sparingly and discuss it with a dermatologist. A wart treatment, a peel, or a product going on a large area of skin every day are all in that territory. So is any product you cannot find a percentage for, and so is skin that is cracked or broken, because that is the one condition the absorption figures single out. ACOG’s own instruction for an over the counter product whose ingredients are not on its list is to contact your obstetrician gynecologist, and the same call answers the questions this page cannot. Take the bottle, not the article.

Key takeaways

• ACOG names topical salicylic acid among the over the counter ingredients that can be used during pregnancy, with no strength, no area and no trimester attached.
• The 2 per cent line is the American Academy of Dermatology’s, not ACOG’s. It asks for sparing use above that and a conversation with a dermatologist, and it does not put salicylic acid on its avoid list.
• The FDA’s monograph puts an over the counter acne product at 0.5 to 2 per cent, so a normal acne wash sits at or under the line. Wart removers run from 5 to 40 per cent and peels from 14 to 20, and those are the products the question is really about.
• The aspirin worry is about a different molecule taken a different way. The FDA’s NSAID warnings at 20 and 30 weeks are about drugs that are swallowed, and ACOG recommends 81 mg aspirin daily to people at high risk of preeclampsia. No body has published a trimester rule for topical salicylic acid.
• While breastfeeding the NIH’s lactation database considers it safe to use, on one condition about placement: keep it off anywhere that touches your baby’s skin or could be licked. Its measured evidence sections are empty, so that is a reasoned clearance rather than a study.

Where this came from

Every health claim on this page links to the body that published it. Nothing here comes from another blog.

Every link above was fetched and confirmed to resolve on 6 September 2026.

Truva summarises published guidance from bodies including ACOG, the FDA, the EU SCCS and the Cosmetic Ingredient Review. It has no access to your medical history and it is not a substitute for your doctor, dermatologist or midwife. This post was written by the Truva team from the sources listed above. It has not been reviewed by a clinician, and nothing in it is a diagnosis or a prescription. If you are pregnant, breastfeeding or being treated for PCOS, take the ingredient list to the person looking after you.