Methylparaben

Preservative

What is Methylparaben, and why is it used?

One of the parabens: long-used preservatives that prevent microbial growth in cosmetics.

Known concern

Some parabens show weak estrogen-like activity in laboratory studies — many times weaker than the body's own estrogen.

Regulatory

The EU's scientific committee (SCCS) considered methyl- and ethylparaben safe up to permitted limits; limits for propyl- and butylparaben were lowered and some other parabens banned.

Why it matters

Unpreserved water-based products can grow harmful microbes. Removing a preservative means replacing it with another.

Evidence & sources

• Methylparaben and ethylparaben are considered safe in cosmetics at EU maximum concentrations. Evidence: regulatory. Known: SCCS reviewed toxicology and exposure data. Unknown: Data on some longer-chain parabens were limited, prompting stricter limits. Source: European Commission — SCCS, Opinion on Parabens (SCCS/1514/13) (2013).

Connected topics

• Phenoxyethanol
• Shampoo
• Hazard ≠ Risk

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General education only, not medical advice. Drafted Oct 2026 · pending qualified expert review.