1-Methylhydantoin-2-Imide vs Sodium Propylparaben
1-Methylhydantoin-2-Imide and Sodium Propylparaben are both keeps the product fresh ingredients. 1-Methylhydantoin-2-Imide is found in 8 products while Sodium Propylparaben appears in 3, making 1-Methylhydantoin-2-Imide the more widely used option.
1-Methylhydantoin-2-Imide
Keeps the product fresh
Sodium Propylparaben
Paraben preservative