Abstract: A liquid delivery system comprises a tank containing a supply of a first liquid. A positive displacement pump operates to withdraw the first liquid from the tank via a suction conduit and to deliver a pressurized flow of the first liquid via a delivery conduit. An adjustable metering orifice in the delivery conduit serves to control the flow of the first liquid through the delivery conduit. A normally closed first valve located in the delivery conduit between the pump and the metering orifice is opened in response to a pressure of the first liquid exceeding a threshold level, and is operative when open to deliver the first liquid to the metering orifice at a substantially constant pressure. A bypass conduit communicates with the tank and with the delivery conduit at a location between the pump and the first valve.

Abstract: A cosmetic composition is provided which includes at least one keratolytic agent and a combination of water-soluble and water-insoluble anti-irritancy agents in a pharmaceutically acceptable carrier. Most effective is a combination of a C.sub.7 -C.sub.30 .beta.-hydroxy carboxylic acids such as salicylic acid with a C.sub.1 -C.sub.2 .alpha.-hydroxy carboxylic acid such as glycolic or lactic acids. The water-soluble anti-irritancy agent is preferably a salt of glycyrrhizinic acid. The water-insoluble anti-irritancy agent is preferably a-bisabolol, azulene or combinations thereof. Other performance components may include a C.sub.1 -C.sub.10 alkyl lactate and an antimicrobial agent such as a zinc or aluminum salt.

Abstract: A cosmetic composition is provided whose major component is petroleum jelly and incorporates a C.sub.18 -C.sub.30 acyl lactylate. Most preferred is behenoyl lactylate. Relatively nongreasy and easily spreadable compositions result which have improved skin healing, moisturization and other skin benefit properties.

Abstract: A cosmetic composition is provided that includes a C.sub.2 -C.sub.22 .alpha.-hydroxy carboxylic acid or salt thereof dispersed within petroleum jelly with the aid of a phosphatide. Additional components may include a sterol and a C.sub.10 -C.sub.22 fatty acid.

Abstract: The invention is directed to increasing the strength and firmness of the skin and reducing the signs of cellulite. The inventive method includes applying to the skin a composition that includes inositol phosphate, particularly phytic acid and its salts, in a cosmetically acceptable carrier.

Abstract: Skin treatment compositions for improving skin strength and firmness and reducing signs of cellulite. The compositions contain a xanthine (e.g., caffeine or theophylline) and an inositol phosphoric acid, and/or alpha hydroxy acid. The ratio of the xanthine to the acid is in a specific range to maintain the xanthine in a solubilized state. A method of preventing or reducing the signs of cellulite by applying a mixture of an inositol phosphoric acid and an alpha hydroxy acid is also disclosed.

Abstract: A cosmetic composition is provided which includes at least one keratolytic agent and a combination of water-soluble and water-insoluble anti-irritancy agents in a pharmaceutically acceptable carrier. Most effective is a combination of a C.sub.7 -C.sub.30 .beta.-hydroxy carboxylic acids such as salicylic acid with a C.sub.1 -C.sub.25 .alpha.-hydroxy carboxylic acid such as glycolic or lactic acids. The water-soluble anti-irritancy agent is preferably a salt of glycyrrhizinic acid. The water-insoluble anti-irritancy agent is preferably .alpha.-bisabolol, azulene or combinations thereof. Other performance components may include a C.sub.1 -C.sub.10 alkyl lactate and an antimicrobial agent such as a zinc or aluminum salt.

Abstract: A sunscreen composition is provided which includes from about 0.1 to about 30% by weight of a quaternary ammonium functionalized phosphate ester, from about 0.01 to about 10% by weight of a cationic polysaccharide and an effective amount of a sunscreen agent. These compositions are waterproof, freeze-thaw cycle stable, moisture retentive and exhibit unusual skin mildness properties.

Abstract: An aqueous composition is provided which includes from about 0.1 to about 30% by weight of a quaternary ammonium functionalized phosphate ester and from about 0.01 to about 10% by weight of a cationic polysaccharide. These compositions are freeze-thaw cycle stable and exhibit unusual skin mildness properties.

Abstract: A cosmetic product is disclosed in the form of a gelatin walled capsule encompassing a cosmetic composition that includes a carrier which is a silicone polymer and an antioxidant. The antioxidant operates to inhibit degradation of the gelatin wall to prevent malodors from being generated. Retinoic acid derivatives such as retinyl palmitate are especially effective as antioxidants.

Abstract: An aqueous cosmetic emulsion is provided that includes an isoparaffin and an alkyl phosphate salt wherein the relative ratio of isoparaffin to alkyl phosphate sale ranges from about 40:1 to 1:1. The combination of isoparaffin with alkyl phosphate salt provides an unexpected thickening effect and results in a non-greasy product relative to a mineral oil bearing formula.