Patent Picks—Capsule Delivery Agents, Photoprotection, Staining Mitigation, Peptides, Substrates, Curl Retention, Hair Dye and More for Hair Care

By: Katie Anderson (Schaefer), Cosmetics & Toiletries magazine

Posted: August 17, 2011

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This invention relates to peptides capable of inhibiting the activity of reactive carbonyl species (RCS) and to cosmetic and pharmaceutical compositions containing these peptides and their use in the treatment and/or care of skin, mucous membranes, scalp and/or hair, preferably for the treatment and/or care of said conditions, disorders and/or diseases of the skin, mucous membranes, scalp and/or hair which are the result of RCS generation.

Porous, dissolvable solid substrate and surface resident coating comprising water sensitive actives
US Patent Application 20110195098
Publication Date: Aug. 11, 2011
Assignee: RW Glenn Jr., KM Kaufman, JC Dunbar, JM Gardlik and BP Murphy

The present invention relates to personal care compositions, especially those personal care compositions in the form of a personal care article that is a porous dissolvable solid substrate. The porous dissolvable solid substrate has a surface resident coating comprising a water sensitive active that can deliver a consumer benefit.

Personal care compositions have traditionally been sold as liquid products. These liquid personal care products typically comprise a substantial amount of water in the formula. Traditionally it has been difficult to include water sensitive actives which are chemically incompatible or hydrolytically sensitive, due to the nature of the aqueous environment of the liquid product. By eliminating the aqueous environment (the solvent), the personal care products of the present invention have improved shelf stability of water sensitive chemically incompatible and hydrolytically sensitive actives.

During usage, the consumer adds water to the personal care product, which activates the water sensitive actives to deliver their consumer desirable benefit at the desired point of time of product application. Additionally, the personal care product of the present invention expands the number and type of cosmetic actives that can be employed by the formulator and enables the delivery of new consumer benefits which have previously been difficult to achieve without dual compartment packaging or by the consumer having to mix differing compositions in a multi-step process. Such consumer benefits are “water activated” and include, but are not limited to, self-lathering (effervescence), self-warming, gradual hair lightening/blonding, gradual hair coloring and visual color change of the product.