Drug – bio-affecting and body treating compositions – Anti-perspirants or perspiration deodorants
Patent
1995-08-17
1997-07-15
Dodson, Shelley A.
Drug, bio-affecting and body treating compositions
Anti-perspirants or perspiration deodorants
424400, 424401, A61K 732
Patent
active
056480679
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to cosmetic deodorants. Such formulations are used to eliminate body odour which arises when fresh perspiration, which is in itself odourless, is decomposed by microorganisms. The commercially available cosmetic deodorants are based on various action principles.
In so-called antiperspirants, the formation of perspiration can be suppressed by astringents--chiefly aluminium salts, such as aluminium hydroxychloride (aluminium chlorohydrate). Apart from denaturing skin proteins, however, the substances used for this purpose intervene drastically in the thermal balance of the axillary region according to their dosage, and should at best be used in exceptional cases.
The bacterial flora on the skin can be reduced by the use of antimicrobial substances in cosmetic deodorants. In the ideal case, only the microorganisms which cause odour should be actively reduced here. In practice, however, it has been found that the entire microflora of the skin may be impaired.
The flow of perspiration itself is not affected thereby, and in the ideal case only the microbial decomposition of the perspiration is temporarily stopped.
The combination of astringents with antimicrobially active substances in one and the same composition is also customary. However, the disadvantages of the two classes of active compound cannot be eliminated completely by this route.
Finally, body odour can also be masked by fragrances, a method which least meets the aesthetic requirements of the consumer, since the mixture of body odour and perfume fragrance smells rather unpleasant.
Nevertheless, most cosmetic deodorants, as is the case with most cosmetics overall, are perfumed, even if they comprise deodorizing active compounds. Perfuming can also serve to increase the user acceptance of a cosmetic product, or to give a product a certain cachet.
However, perfuming of cosmetic formulations, in particular cosmetic deodorants, containing active compounds is not infrequently problematic, because active compounds and perfume constituents can occasionally react with one another and render each other inactive.
Deodorants should meet the following conditions: the deodorants. as specified.
Both liquid deodorants, for example aerosol sprays, roll-ons and the like, and solid formulations, for example deodorant sticks, powders, powder sprays, intimate cleansing compositions and the like, are known and customary.
The object of the present invention was thus to develop cosmetic deodorants which do not have the disadvantages of the prior art. In particular, the deodorants should largely preserve the microflora of the skin, but selectively reduce the number of microorganisms responsible for body odour.
It was furthermore an object of the invention to develop cosmetic deodorants which are distinguished by a good skin tolerability. Under no circumstances should the deodorizing active principles become concentrated on the skin.
Another object was to develop cosmetic deodorants which harmonize with the largest possible number of customary cosmetic auxiliaries and additives, in particular with the perfume constituents which are important precisely in formulations having a deodorizing or antiperspirant action.
Yet another object of the invention was to provide cosmetic deodorants which are active over a relatively long period of time, in particular of the order of at least half a day, without their action subsiding noticeably.
Finally, an object of the present invention was to develop deodorizing cosmetic principles which can be incorporated as universally as possible into the most diverse presentation forms of cosmetic deodorants without being limited to one or a few specific presentation forms.
Surprisingly, it has been found, and therein lies the achievement of all these objects, that cosmetic deodorants having an active content of monocarboxylic acid esters of di- and/or triglycerol remedy the disadvantages of the prior art.
It is indeed known that fatty acid esters of glycerol (that is to say of monoglycerol demonstrate a certain antimic
REFERENCES:
patent: 4704271 (1987-11-01), Howrihan et al.
Dillenburg Helmut
Jakobson Gerald
Klein Winfried
Siemanowski Werner
Uhlig Karlheinz
Beiersdorf Aktiengesellschaft
Dodson Shelley A.
Solvay Fluor und Derivate GmbH
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