[6] There is controversy about whether methylparaben or propylparabens are harmful at concentrations typically used in body care or cosmetics.

Methylparaben and propylparaben are considered generally recognized as safe (GRAS) by the USFDA for food and cosmetic antibacterial preservation.

[7] Methylparaben is readily metabolized by common soil bacteria, making it completely biodegradable.

[8] Acute toxicity studies have shown that methylparaben is practically non-toxic by both oral and parenteral administration in animals.

[8] In a population with normal skin, methylparaben is practically non-irritating and non-sensitizing; however, allergic reactions to ingested parabens have been reported.