Ingredient

Propylparaben

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What is Propylparaben?

Propylparaben is a type of paraben commonly used as a preservative in cosmetics and personal care products. It is synthesized by esterifying p-hydroxybenzoic acid with propanol.

It is used to extend the shelf life of products by preventing the growth of mold and bacteria. There is ongoing debate about its safety; some studies suggest potential endocrine-disrupting effects, but regulatory agencies consider it safe within certain limits.

When you see propylparaben on a label, it indicates the product has been formulated to resist microbial growth, which helps keep it safe for use over time.

Commonly found in: Body Lotion, Lip Care, Shampoos, Conditioners, Creams

What to watch

Some studies indicate that propylparaben may have endocrine-disrupting effects.

Benefits

Effective at preventing microbial growth, which extends product shelf life.

FDA

The FDA recognizes parabens as safe at low levels, though reviews are ongoing regarding their potential health impacts.

Research

Research has shown endocrine-disrupting potential in high doses, but typical usage levels in cosmetics are considered safe.

Vegan

Propylparaben is not derived from animal products and is generally accepted in vegan formulations.

Sources: Paraben Safety Assessment

Scout's take

Long-chain paraben restricted in the EU due to endocrine-disruption concerns. Banned at any concentration in Denmark in children's products under 3.

More from Scout's analyses

Longer-chain paraben with stronger estrogenic activity than methylparaben. Banned by the EU's SCCS at concentrations above 0.14% and increasingly avoided industry-wide. Its continued use in AmLactin reflects a non-reformulated legacy product.

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

Similar to methylparaben, propylparaben is a synthetic preservative that may cause skin irritation and has been linked to hormonal disruption. Its use in cosmetics is controversial due to potential health risks.

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