Preparation for improving the blood supply containing hard magnetic particles
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United States of America Patent
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Jul 6, 1999
Issued Date -
N/A
app pub date -
Oct 16, 1997
filing date -
Jul 19, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A preparation for stimulating the blood circulation of the skin comprising a dispersion containing a proportion of finely divided magnetically hard single-domain particles in the dispersion being in the range from 0.01% to 70% by weight, based on the total weight of the dispersion; these particles having a strong coercive field and being in the range 600 to 1200 nm; and the magnetically hard single-domain particles are selected from the group consisting of barium hexaferrite, strontium hexaferrite, undoped barium hexaferrite, undoped strontium hexaferrite, and the mixtures thereof; and the balance up to 100% by weight of a cosmetic or pharmaceutical excipient carrier substance or a pharmaceutical additive, based on the total weight of the dispersion.
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