Antiperspirant or deodorant compositions
AssigneeUnilever Home & Personal Care USA, Division of Conopco, Inc.
InventorsAndrew Easson Mayes, Anthony Vincent Rawlings, Allan Watkinson
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Abstract
Antiperspirant compositions comprising an astringent aluminum or zirconium salt can suffer from perceived irritancy when applied topically, which can be ameliorated or overcome by incorporating within the composition a PPAR activating fatty acid and/or hydrolyzable precursor thereof such as a triglyceride or ester of the PPAR, especially in an amount selected in the range of from 0.5 to 10 wt %. The compositions advantageously comprise an activated aluminum salt or aluminum-zirconium glycine complex.
Claims18
An antiperspirant cosmetic composition suitable for topical application to the human skin, comprising:
- i. an antiperspirant active comprising an astringent aluminium or zirconium salt;
- ii. a carrier for the antiperspirant active;
- and
- iii. either (a) a PPAR activating fatty acid other than at least 1% by weight of ricinoleic acid or linoleic acid
- or (b) a hydrolysable precursor of a PPAR activating fatty acid other than borage oil, castor oil or sunflower seed oil
- in an effective amount that is insufficient to gel the composition by itself.
A method of reducing or eliminating skin irritancy arising from topical application of an antiperspirant cosmetic composition comprising an antiperspirant active comprising an astringent aluminium or zirconium salt and a carrier for the antiperspirant active which comprises the step of incorporating in the composition an effective amount of either (a) a PPAR activating fatty acid a) a PPAR activating fatty acid excluding at least 1% by weight of ricinoleic acid or linoleic acid or (b) a hydrolysable precursor of a PPAR activating fatty acid other than borage oil, castor oil or sunflower seed oil that is insufficient to gel said composition.
A method of reducing or eliminating skin irritancy arising from topical application of an antiperspirant cosmetic composition comprising an antiperspirant active comprising an astringent aluminium or zirconium salt and a carrier for the antiperspirant active which comprises the step of incorporating in the composition a PPAR activating fatty acid other than ∝-linolenic acid or hydrolysable precursor thereof in an amount that is sufficient to reduce skin irritancy and insufficient to gel the composition.
Dependencies are inferred from the claim text.