Methylparaben
Paraben with the lowest molecular weight and weakest estrogenic activity in the group. One of the most studied cosmetic preservatives. EU-permitted concentration up to 0.4%.
Supporting ingredient
It gives a product its texture, stability or shelf life. It has no claimed effect on the skin, so an efficacy tier does not apply. What is known about its safety is below
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Oily, Dry, Sensitive, Combination, Normal
About this ingredient
Methylparaben is the methyl ester of para-hydroxybenzoic acid, the shortest-chain member of the paraben family. One of the oldest cosmetic preservatives. Mechanism. Suppresses fungal and Gram-positive bacterial growth by disrupting cell membranes and inhibiting enzymes. On its own weaker than medium- and long-chain parabens (ethyl-, propyl-, butyl-), so usually used in blends. Where applied. Creams, lotions, shampoos, shower gels, foundations, mascaras. EU Regulation 1223/2009 concentration – up to 0.4% alone, up to 0.8% as the sum of all parabens. Evidence base. SCCS confirmed safety of methylparaben at maximum concentrations (Opinion SCCS/1514/13). Unlike propyl- and butylparaben, no significant estrogen-like activity has been shown. Methylparaben does not need to be removed from cosmetics. Controversy. Parabens have been discussed since 2004 – the Darbre study found parabens in breast cancer tumor tissue. A correlation, not causation: parabens have not been classified as carcinogens. SCCS, FDA, AEMPS confirm safety of methylparaben. The marketing "paraben-free" trend is more commercial than scientifically justified for short-chain parabens. Safety. Very rare contact allergies (0.1–0.4% in the general population, Uter 2018). Does not photosensitize. Non-comedogenic. Pregnancy and lactation – per SCCS safe at approved concentrations.
Frequently asked questions
Is Methylparaben safe during pregnancy?
Methylparaben is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Methylparaben for?
Methylparaben suits: oily, dry, sensitive, combination, normal.
What is Methylparaben and what does it do in cosmetics?
Paraben with the lowest molecular weight and weakest estrogenic activity in the group.
What's the INCI name for Methylparaben?
The INCI name is Methylparaben. It may also appear as: Methyl Paraben, Methyl-4-Hydroxybenzoate.
See Methylparaben in a product composition right on the store page
The Evigrade extension adds an evidence panel to iHerb, Sephora, Druni and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
Similar role in the formula
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