Patent Picks—Etyllinoleate, Dibenzoyl Peroxide, Pentane-1,5-Diol, Microcapsules and More for Treating Acne

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

Posted: July 12, 2011

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The present invention is based on the insight that pentane-1,5-diol is effective against multiple-resistant bacteria. The inventors have found that compositions comprising 15% w/w or more of pentane-1,5-diol and a suitable carrier that lacks bacteriostatic effect or the bacteriostatic effect of which is less than 5% w/w of the bacteriostatic effect of pentane-1,5-diol in respect of a particular microorganism provide efficient bacteriostasis against multiple-resistant bacteria. This is entirely unexpected even in view of the known moderate antibacterial effect of pentane-1,5-diol and similar diols. In addition, there is reason to believe that the bacteriostatic effect of the invention is shared by other low-molecular weight aliphatic diols, such as propane-1,2-diol, propane-1,3-diol, butane-1,2-diol, butane-1,3-diol, butane-1,4-diol, butane-2,3-diol, 2-methylpropane-1,2-diol, 2-methylpropane-1,3-diol, 2-hydroxymethyl-1-propanol, pentane-1,2-diol, pentane-2,3-diol, 2-hydroxymethyl-1-butanol, 2-methylbutane-1,2-diol, 3-methylbutane-1,2-diol, 2-methylbutane-1,3-diol, 3-methylbutane-1,3-diol, 2-methylpentane-1,4-diol, hexane-1,2-diol, hexane-1,6-diol, 2-methylpentane-1,5-diol, 3-methylpentane-1,5-diol.

Due to the low acute and long-term toxicity of pentane-1,5-diol, the bacteriostatic composition of the invention may be used as a pharmaceutical for topical administration but also as a disinfectant which, in contrast to other efficient disinfectants, poses no health risk to persons using it. An additional advantage of the composition of the invention is that it does not give rise to resistant strains of bacteria. The composition of the invention may take the form of a liquid, semi-liquid or solid disinfectant preparation, a bacteriostatic solution, lotion, cream, soap, shampoo, ointment, paste, wet towel, hygiene dish, patch, diaper or similar personal hygiene protection device. In a preferred embodiment the composition of the invention is combined with antibiotic, antiviral agent, antiseptic, agent for treatment of acne and with other agents used in the treatment of infectious diseases of the skin and the mucous membranes.

Growth factor-mimicking peptides and uses thereof
US Patent Application 20110160131
Publication Date: June 30, 2011
Assignee: Caregen Co., Ltd.

The present invention relates to a growth factor-mimicking peptide with an activity of the growth factor, and a composition and a method for improving skin conditions or for treating a wound using the same. The growth factor-mimicking peptides of this invention have identical functions or actions to natural-occurring human growth factor, and much better stability and skin penetration potency than natural-occurring growth factor. In these connections, the composition comprising the peptides of this invention can exhibit excellent efficacies on the treatment, prevention and improvement of diseases or conditions demanding growth factor activities. In addition, excellent activity and stability of the peptides of this invention can be advantageously applied to pharmaceutical compositions, quasi-drugs and cosmetics.

Skin pore minimizers and skin elasticity improvers
US Patent 7968607
Publication Date: June 28, 2011
Assignee: Kao Corp.