Last update Jan. 7, 2021



Safe substance and/or breastfeeding is the best option.

A uric acid derivative that is found in body fluids (urine, amniotic fluid, saliva) of certain animals (cows, snails) and plants (comfrey).
Uric acid is the final product from the degradation of purines in humans and primates that do not possess an enzyme which degrades uric acid to allantoin in other mammals and non-mammals.
Purines are very abundant in meats, entrails, fish, seafood and beer.

Allantoin is used topically as a cosmetic and in oral hygiene products. It has healing properties (PubChem 2017 7.1)

Since the last update date we have not found published data on its excretion in breastmilk.

The low plasma absorption of most topical dermatological preparations makes it unlikely that it will transfer to breast milk in significant amounts.

There is no known toxicity (Akema 2012).

Do not apply on the chest in order to prevent the infant from ingesting it; if necessary, apply after breastfeeding and clean well with water before the next feed.

See below the information of this related product:

  • Comfrey, common comfrey (Unsafe. Moderate/severe adverse effects. Compatible under certain circumstances. Follow-up recommended. Use safer alternative or discontinue breastfeeding from 5 to 7 T ½ . Read Commentary.)


We do not have alternatives for Αλλαντοΐνη 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

Αλλαντοΐνη is Allantoin in Greek.

Is written in other languages:

Αλλαντοΐνη is also known as


Αλλαντοΐνη belongs to this group or family:


Main tradenames from several countries containing Αλλαντοΐνη in its composition:


Variable Value Unit
Molecular weight 158 daltons


  1. PubChem. Allantoin. 2017 Full text (link to original source) Full text (in our servers)
  2. AKEMA. Alantoína. Ficha técnica. 2012 Full text (in our servers)

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