On the safety of glycolic acid during lactation
Breastfeeding women in the world often consider that the substances used are harmless to the baby. Glycolic acid is common in skin care products. Its safety during lactation is a matter of concern.

Glycolic acid is an alpha-hydroxy acid. When used externally, the amount absorbed through the skin is quite limited. Under normal skin care doses, the amount absorbed by the skin into the systemic circulation is small. When used by breastfeeding women, the amount passed from breast milk to the infant is also small.

According to various studies, there is little strong evidence that glycolic acid can cause poor breastfeeding in infants when used externally. However, everything must be in moderation. If high concentrations of glycolic acid, or due to improper use, cause skin irritation, damage, or increased absorption, the amount of systemic circulation in this case increases, and the risk of infant transmission through breast milk may also increase.

Furthermore, there are individual differences. Different women have different skin conditions and metabolic abilities. Therefore, breastfeeding women who want to use products containing glycolic acid should consult a doctor first. The doctor can discontinue the use and dosage according to their individual conditions, such as constitution, past medical history, etc.

In short, under normal circumstances, appropriate external use of skin care products containing glycolic acid may be safe for breastfeeding women. However, in order to protect the baby, use front care and medical providers to avoid latent risks and protect the health of mothers and babies.