Last update March 31, 2023

Acetic Acid


Safe substance and/or breastfeeding is the best option.

Acetic acid, or vinegar, is used as a topical antibacterial, antifungal, and antiprotozoal in vaginal gels and douches, douches, topical preparations for skin, nails, and eardrops, and as an expectorant. Indicated to treat warts, calluses, jellyfish stings and infections of the external auditory canal and vaginal. It is also used to adjust pH in injectable solutions and in hair straightening procedures.
Vinegar is a solution of 5 to 10% acetic acid in water, it is produced by double fermentation of sugar from grapes, apples or other vegetables to alcohol and from this to vinegar; It is used as a gastronomic condiment, food preservative and cleaning product.

At the date of the last update we did not find any published data on its excretion in breast milk.

The poor plasma absorption of most topical dermatological and otological preparations makes it unlikely that a significant amount will pass into breast milk.

Its extensive and ancient use as a food seasoning excludes any risk during lactation.


We do not have alternatives for Acetic Acid since it is relatively safe.

Suggestions made at e-lactancia are done by APILAM team of health professionals, and are based on updated scientific publications. It is not intended to replace the relationship you have with your doctor but to compound it. The pharmaceutical industry contraindicates breastfeeding, mistakenly and without scientific reasons, in most of the drug data sheets.

Jose Maria Paricio, Founder & President of APILAM/e-Lactancia

Your contribution is essential for this service to continue to exist. We need the generosity of people like you who believe in the benefits of breastfeeding.

Thank you for helping to protect and promote breastfeeding.

José María Paricio, founder of e-lactancia.

Other names

Acetic Acid is also known as

Acetic Acid in other languages or writings:


Main tradenames from several countries containing Acetic Acid in its composition:


Variable Value Unit
Molecular weight 60 daltons


  1. Teva. Acetic Acid (EarCalm Spray). Drug Summary. 2021 Full text (in our servers)

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