1-Methylhydantoin-2-Imide vs Polyparaben
1-Methylhydantoin-2-Imide and Polyparaben are both keeps the product fresh ingredients. 1-Methylhydantoin-2-Imide is found in 8 products while Polyparaben appears in 1, making 1-Methylhydantoin-2-Imide the more widely used option.
1-Methylhydantoin-2-Imide
Keeps the product fresh
Polyparaben
Paraben preservative