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Patent Pick: Lessons in Layers for Skin Benefits

December 2, 2016 | Contact Author | By: Rachel Grabenhofer
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Keywords: skin | layer | Procter & Gamble | composition | regimen | humectant | feel | coated | starch | particle

Abstract: It's December now, and half the world is about to enter the winter season. The experts teach us it's best to dress in layers—not unlike a new patent application from P&G, which describes layering ingredients for skin benefits.

Multifunctional products comprising a variety of materials to deliver several skin care benefits in one application have been on the market for years. For example, a product might contain humectants and other actives to improve the condition and health of the skin; emollients to lubricate skin; and powders to provide certain aesthetics.

However, according to P&G inventors, layering different benefits on skin poses similar drawbacks to mixing too many ingredients in one composition. So there remains a need for product regimens that deliver multiple benefits in different compositions designed to be used together. 

This patent application describes compositions that meet this need. In addition, it provides a process for applying them.

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Multifunctional products comprising a variety of materials to deliver several skin care benefits in one application have been on the market for years. For example, a product might contain humectants and other actives to improve the condition and health of the skin; emollients to lubricate skin; and powders to provide certain aesthetics.

However, according to P&G inventors, layering different benefits on skin poses similar drawbacks to mixing too many ingredients in one composition. So there remains a need for product regimens that deliver multiple benefits in different compositions designed to be used together. 

This patent application describes compositions that meet this need. In addition, it provides a process for applying them.

Multi-component products and regimens to improve skin
WIPO Patent Application WO/2016/191442
Publication date: Dec. 1, 2016
Assignee: Procter & Gamble Co.

Specified in this patent application are three compositions. The first comprises a humectant and the second, a non-volatile oil. The third includes substantially spherical particles at levels from about 10% to 30% w/w of the composition, selected from: coated or uncoated starch or derivatives thereof; coated or uncoated cross-linked starch; coated or uncoated silicone elastomer particles; and combinations thereof.

The components are applied in order, as the inventors discovered that this multi-step process greatly reduces the sticky, heavy feel of the humectants. It also enhances the smooth, powdery feel and appearance of the particles.