External preparation for skin
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United States of America Patent
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Nov 15, 2016
Grant Date -
Nov 21, 2013
app pub date -
Jan 31, 2012
filing date -
Feb 1, 2011
priority date (Note) -
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Abstract
The present invention has an object to provide an external dermal agent with a sustainable anti-wrinkle action, which has both the action of enhancing the proliferation and differentiation of keratinocytes in the skin and the action of enhancing the collagen production in the skin, and which assists the maintenance and the improvement of tissue structures and physiological functions of the epidermis and the dermis, whereby providing a remarkable skin improvement effect. The present invention solves the above object by providing an external dermal agent containing α-D-glucopyranosyl-(1→3′)-adenosine and/or α-D-glucopyranosyl-(1→5′)-adenosine as an effective ingredient(s).
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