Antibacterial mouth rinses can be divided into 1st generation and 2nd generation agents.

• 1st generation agents such as essential oils, sanguinarine, cetylpyridinium chloride and peroxides, have been available as over-the-counter antibacterial rinses for a long time. Even though they are antibacterial, they have less substantivity than 2nd generation agents. Substantivity is the ability of an active agent to be retained in the mouth and is able to continue to be released over an extended period of time without losing its strength. Therefore, 1st generation agents need to be used more frequently to obtain results.
• 2nd generation agents have proven substantivity and antibacterial properties. Common 2nd generation agents include chlorhexidine and stannous fluoride which require prescription for use.

There are two categories recognized by the American Dental Association (ADA) to be effective against plaque and gum disease:

1. Mouthwash that contains essential oils as an active ingredient. For example Listerine® mouthwash and other generic equivalents sold over the counter.
2. Mouthwash that contains chlorhexidine gluconate as an active agent which the Food and Drug Administration (FDA) has approved ONLY as prescription products. For example Peridex® and Prevident®.

LL is a vegetable derived cosmetic ester designed to impart unique conditioning, emolliency, moisturization, emulsification, thickening, slip and superfatting in skin and hair care applications. This oil soluble lipid is unique in having a melting point near skin temperature. LL can be formulated to improve the rub-out, spreading, solubilization and skin feel properties for most cosmetics and pharmaceutical ingredients, as well as influence viscosity and dispersion characteristics. LL is easily formulated to provide a smooth non-greasy elegant feel.

When formulated with mineral oils, LL improves the feel and slip with levels as low as 2% giving mineral oil a pleasant "talc-powder like," "silicone" feel while improving formula stability and cost. LL is an excellent film former, contributing to enhanced substantivity for use in creams, lotions, makeup, baby care, sun care preparations, conditioners, deodorant sticks, bath oils, massage oil, and hot pour products such as lipsticks.