Is methylparaben in cosmetics and personal care products safe?

What's actually in it

Methylparaben (and its relatives ethylparaben, propylparaben, butylparaben) are preservatives used in cosmetics, lotions, shampoos, and some foods. They're one of the most common preservatives in personal care products globally. They absorb through skin effectively, which is why they've been studied extensively.

Parabens mimic estrogen. They've been found in breast tissue, urine, and blood samples from the general population. Because they're used in so many products, daily cumulative exposure adds up.

What the research says

A 2026 study in J Appl Toxicol exposed cumulus cells and oocytes (egg cells) to methylparaben. They found that methylparaben damaged cumulus cell DNA and impaired oocyte developmental competence. The oocytes exposed to methylparaben were less likely to develop normally. DNA damage in reproductive cells raises concerns about fertility effects.

Parabens are detectable in most people who regularly use conventional cosmetics. For people trying to conceive, the concern is particularly direct.

Choosing paraben-free personal care products reduces exposure significantly. For baby and maternal care products, choose items with short ingredient lists and no "-paraben" compounds. Use organic cotton home goods for towels and washcloths that contact skin without synthetic chemical residues.