MICRONEEDLE CONTAINING RETINOL OR RETINOL DERIVATIVE
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United States of America Patent
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app pub date -
Apr 23, 2015
filing date -
Jul 24, 2014
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Abstract
The present disclosure relates to a system for administering retinol into skin that ensures stability of retinol, reduces skin irritation of retinol, and continues to exert effects, wherein the system is a microneedle including microparticles containing retinol or retinol derivatives. The present disclosure further provides a method for manufacturing a retinol administration system that reduces skin irritation, exerts effects of retinol for a long time, and ensures stability of retinol very unstable to light, wet and temperature. The present disclosure further provides a method for administering retinol into skin using the microneedle.
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