Germaben II is a clear, viscous liquid used to inhibit microbial, yeast

Yeast

Yeasts are eukaryotic micro-organisms classified in the kingdom Fungi, with 1,500 species currently described estimated to be only 1% of all fungal species. Most reproduce asexually by mitosis, and many do so by an asymmetric division process called budding...

 and mould growth in cosmetics and other personal products. It contains propylene glycol

Propylene glycol

Propylene glycol, also called 1,2-propanediol or propane-1,2-diol, is an organic compound with formula C3H8O2 or HO-CH2-CHOH-CH3...

, propylparaben, methylparaben

Methylparaben

Methylparaben, also methyl paraben, one of the parabens, is a preservative with the chemical formula CH3. It is the methyl ester of p-hydroxybenzoic acid.-Occurrence:...

, and diazolidinyl urea

Diazolidinyl urea

Diazolidinyl urea is an antimicrobial preservative used in cosmetics. It is chemically related to imidazolidinyl urea which is used in the same way. Diazolidinyl urea acts as a formaldehyde releaser....

. It is a Registered Trademark

Trademark

A trademark, trade mark, or trade-mark is a distinctive sign or indicator used by an individual, business organization, or other legal entity to identify that the products or services to consumers with which the trademark appears originate from a unique source, and to distinguish its products or...

 of International Specialty Products.

Germaben II is used primarily by small businesses or home hobbyists who make soap, lotions, shampoos and other body care products.

Germaben II contains parabens

Parabens

Parabens are a class of chemicals widely used as preservatives in the cosmetic and pharmaceutical industries. Parabens are effective preservatives in many types of formulas. These compounds, and their salts, are used primarily for their bactericidal and fungicidal properties...

, some studies have raised concerns that these substances may be carcinogenic  owing to their effect of mimicking the body's hormone estrogen

Estrogen

Estrogens , oestrogens , or œstrogens, are a group of compounds named for their importance in the estrous cycle of humans and other animals. They are the primary female sex hormones. Natural estrogens are steroid hormones, while some synthetic ones are non-steroidal...

.