| Solbrol LB 5 is a clear viscous yellow liquid. It is a broad-spectrum liquid blend containing four different Parabens, along with Dehydroacetic acid (DHA), which are dissolved in Phenoxyethanol. The Parabens Methyl, Ethyl, Propyl and Butyl are highly effective against fungi and bacteria, while the Phenoxyethanol adds synergy for maximum efficiency. Adding the DHA component into the blend gives it extra protection against yeasts and molds. Solbrol LB 5 is a good solution for formulators seeking a preservation system free from both halogenated organic compounds and formaldehyde. The activity of Solbrol LB 5, like the activity of any other preservation system that contains organic acids, is pH-dependent. As the antimicrobial activity is obtained mainly by the nondissociated acid form, personal care products that are slightly acidic will benefit the most from Solbrol LB 5. Solbrol LB 5 has limited water solubility. For this reason, it should be incorporated to the oily phase, prior to its combination with the water phase. When using Solbrol LB 5 in an aqueous formulation, it should be added after the surfactants have been introduced. The recommended level of use for Solbrol LB 5 is up to 1.35%.Information provided by Lanxess. |
