Hydroquinone (Skin Lightening)

Hydroquinone (a skin-lightening agent used for melasma and dark spots) should be avoided while breastfeeding. It has significant systemic absorption through the skin (35–45%), and there are no safety studies for breastfeeding. Given the high absorption rate and lack of data, safer alternatives like azelaic acid, vitamin C serum, or niacinamide are recommended for hyperpigmentation during breastfeeding.

Always confirm with your doctor or lactation consultant before making dietary changes while breastfeeding.