Abstract: Cosmetic cleansing agents include biosurfactants and have prebiotic activity. The prebiotic effect is produced by combining biosurfactants with anionic surfactants. The cosmetic cleansing agent according to the invention also has excellent foaming properties and washing properties. The present invention also relates to the use of biosurfactants as a prebiotically effective component of cosmetic cleansing agents.

Abstract: A cosmetic cleansing agent includes biosurfactants, serving as the surfactants, in combination with an anionic surfactant and a thickener. The cosmetic cleansing agent in total includes less than 0.1 wt. %. polyethylene glycol, polypropylene glycol, ethylene oxide-containing compounds, and propylene oxide-containing compounds. A cosmetic cleansing agent having excellent foaming properties and cleansing properties may thus be provided, even though no, or substantially no, foam-promoting ethylene oxide-containing surfactants are present.

Abstract: The invention relates to a regulating device for an unbalanced mass vibration generator, comprising at least two pairs of partial unbalanced mass bodies that can be driven around an allocated axis whose vectorially added partial centrifugal force vectors form the resulting centrifugal force vector. Adjustment is carried out between a resulting minimal unbalance moment (amplitude of oscillation=minimal) and a resulting maximal unbalance moment (amplitude of oscillation=maximal) without any intermediate positions, whereby both allocated limiting phase angles are regulated using two stops. The regulating device also enables acceleration and stopping of the vibrator with a regulated minimal unbalance moment. The regulating device selectively utilizes one or two drive motors for regulating the phase angle. Due to the utilization of stops in adjusting the phase angle, it is no longer necessary to use complicated control means and a compact structure is made possible.