Last update June 4, 2016

Lactic Acid

Very Low Risk

Safe. Compatible. Minimal risk for breastfeeding and infant.

A natural product found in milk that may increase their concentration after exercise which is not harmful to the infant.

At latest update published were not found data on excretion in breast milk.
Because the small dose used and poor absorption to the plasma of most topical dermatological or vaginal preparations, make it unlikely the pass of a significant amount into breast milk.

Do not apply on the nipple or areola.


We do not have alternatives for Lactic 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

Lactic Acid in other languages or writings:


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


Variable Value Unit
Oral Bioavail. 17 - 35 (dermat.) %
Molecular weight 90 daltons


  1. FDA. U.S. Food & Drug Administration Part 184.1- Substances added directly to human food affirmed as generally recognized as safe (GRAS). CFR. 2023 Consulted on Dec. 12, 2023 Full text (link to original source) Full text (in our servers)
  2. Okuda M, Donahue DA, Kaufman LE, Avalos J, Simion FA, Story DC, Sakaguchi H, Fautz R, Fuchs A. Negligible penetration of incidental amounts of alpha-hydroxy acid from rinse-off personal care products in human skin using an in vitro static diffusion cell model. Toxicol In Vitro. 2011 Abstract
  3. Wright KS, Quinn TJ, Carey GB. Infant acceptance of breast milk after maternal exercise. Pediatrics. 2002 Abstract
  4. Quinn TJ, Carey GB. Does exercise intensity or diet influence lactic acid accumulation in breast milk? Med Sci Sports Exerc. 1999 Abstract
  5. Carey GB, Quinn TJ, Goodwin SE. Breast milk composition after exercise of different intensities. J Hum Lact. 1997 Abstract

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e-lactancia is a resource recommended by Academy of Breastfeeding Medicine - 2006 of United States of America

Would you like to recommend the use of e-lactancia? Write to us at corporate mail of APILAM