A film coating for keratin fibers is described. The film coating is produced by applying to the keratin fibers a pretreatment composition and a film forming composition and curing the compositions to produce the film coating. The coating may be clear and function as a styling, conditioning and holding. The coating alternatively may contain pigment particles and provide a color coating.

Device for treating keratin materials in contact with a fluid, in particular a cosmetic composition. The device including at least one ultrasonic transducer having an emission surface for emitting acoustic waves into said fluid in order to generate bubbles therein having a mechanical action, when they burst, on said keratin materials, the emission surface having reliefs where the bubbles may arise at different levels along a longitudinal axis of the transducer.

A formula and method to counteract hair loss, where the formula is a mixture. The mixture consists of Flaxseed oil, Coconut oil, Castor oil, Nigella sativa oil, Olive oil, Sesame oil, Sweet Almond oil, Bitter Almond oil, Watercress oil, Jojoba oil, Garlic oil, Onion oil, and Pistacia lentiscus oil. The oils derived from seeds are cold rolled to produce the oil. The mixture is applied to the scalp after brushing and washing of the scalp area to be treated.

The disclosure notably relates to a computer-implemented method for selecting a chemical compound applicable on a class of human hairs. The method comprises obtaining a database storing data relative to chemical compounds. For each compound the data comprises an identifier, an ingredient and a performance score. The method also comprises obtaining assessed hair properties and hair target properties. The method also comprises computing at least one goal score and a manageability goal score from the assessed hair properties and hair target properties. The method also comprises determining at least one identifier in the database satisfying the computed goal score and the computed manageability goal score. The satisfying comprises minimizing a distance function between the computed goal score and a corresponding goal score and maximizing a fit-to-manageability function between the computed manageability goal score and the corresponding manageability score. The method also comprises outputting the determined at least one identifier.

A shampoo apparatus, including a base, a headrest, a liquid spraying tube, and a first pressurizing assembly The headrest and the first pressurizing assembly are both mounted on the base. The liquid spraying tube comprises a tube body and multiple liquid spray nozzles, the first pressurizing assembly is connected to the tube body to pressurize first liquid and spray it out through the multiple liquid spray nozzles. The multiple liquid spray nozzles are faced the headrest, and the multiple liquid spray nozzles have at least one gathering zone. The tube body is rotatably mounted on the base to adjust a position of the gathering zone.