Ingredient · Updated July 2026

Methylparaben

Flagged in 12

Found in 12 productsSee all

Crème de la République Goat Milk + Honey Body Lotion Honey Almond

Sunstar GUM Oral B Mouthwash Orange flavor

AmLactin Daily Nourish 12% Lactic Acid Lotion

Vaseline Intensive Care Advanced Repair Unscented Lotion

Lubriderm Daily Moisture Lightly Scented Lotion

Lancôme Génifique Youth Activating Cream

Nivea Essentially Enriched Body Lotion

Jergens Original Scent Cherry-Almond Body Moisturizer

What is Methylparaben?

Methylparaben is a type of paraben, a group of synthetic compounds commonly used as preservatives in cosmetics and personal care products. It is produced by reacting para-hydroxybenzoic acid with methanol.

Methylparaben is used to prevent the growth of harmful bacteria and mold, extending the shelf-life of products. There has been debate about its safety, with some research suggesting potential hormonal disruption, but the evidence is mixed and inconclusive at low levels typically used in consumer products.

When you see methylparaben on a label, it's usually there to enhance product longevity, especially in formulas containing water, which are prone to microbial growth.

Commonly found in: Body Lotion, Lip Care, Sunscreen, Mouthwash, Makeup

What to watch

Some studies suggest potential endocrine disruption, but findings are controversial at low concentrations.
There are concerns about skin irritation in sensitive individuals.

Benefits

Extends the shelf-life of cosmetic products by preventing microbial growth.

FDA

The FDA considers methylparaben safe for use in cosmetics at low levels.

Research

Research shows potential hormonal effects, but the evidence is not conclusive at the levels used in consumer products.

Vegan

Methylparaben is synthetic and not derived from animals, making it suitable for vegan use.

Sources: Parabens in Cosmetics · Endocrine-Disrupting Chemicals and Risk of Diabetes

Scout's take

Paraben preservative classified by the EU as an endocrine disruptor under review. Mimics estrogen and detected in human breast tissue.

More from Scout's analyses

Paraben preservative classified as a potential endocrine disruptor (weak estrogenic activity). Restricted/banned in several European jurisdictions for use in personal-care products. Cleaner alternatives (phenoxyethanol, sodium benzoate) are widely available.

from the analysis of AmLactin Daily Nourish 12% Lactic Acid Lotion

Methylparaben is a synthetic preservative that can cause skin irritation in some individuals. It has been associated with potential hormonal disruptions, raising concerns about its safety in personal care products.

from the analysis of Crème de la République Goat Milk + Honey Body Lotion Honey Almond

Methylparaben is a synthetic preservative that can cause allergic reactions in some individuals. Its safety in oral products is questioned due to potential endocrine disruption.

from the analysis of Sunstar GUM Oral B Mouthwash Orange flavor