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The facts: Thioglycolic acid is restricted in European Union, though the FDA still allows it in the US. We can't tell you whether it's safe for your pregnancy — that's a conversation for your OB-GYN or midwife. What we can do is show you the regulatory facts and flag Thioglycolic acid on any product's label so you can decide with your provider. Commonly found in: perms, hair relaxers, depilatories.
TL;DR: Thioglycolic acid is restricted in the EU and allowed in the US. Here's what to know if you're pregnant.
| EU status | Restricted |
|---|---|
| US status | Allowed |
| Risk level (regulatory) | high |
| Where it shows up | perms, hair relaxers, depilatories |
Thioglycolic acid (Thioglycolic Acid) is a reducing agent in perms and hair removers.
It is used for its preservative, coloring, fragrance, solvent or texture-enhancing function.
A corrosive sensitizer; the EU strictly limits its concentration.
For educational use only. This page summarizes the regulatory status of Thioglycolic acid with citations to the primary sources below. It is not medical advice and is not pregnancy-specific medical guidance. Consult your OB-GYN or midwife for decisions about your pregnancy.
Yes. Thioglycolic acid is restricted in European Union. The FDA still allows it in the US.
That's a decision for you and your OB-GYN or midwife — we don't give medical advice. What we can tell you is the regulatory status above. Many people choose to limit additives during pregnancy out of caution; bring this page and its sources to your next appointment.
Commonly found in perms, hair relaxers, depilatories. Scan any product's barcode to check its label for Thioglycolic acid.
Choose EU-compliant or 'free-from' formulations and read the INCI list. BannedPantry flags this ingredient and suggests safer swaps. See the pregnancy-conscious swaps below.
Scan any product's barcode and instantly see if it contains Thioglycolic acid or other ingredients restricted overseas.
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Audited products that don't contain Thioglycolic acid.
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