[EN] SKIN PIGMENTATION MODIFIERS TO DARKEN OR LIGHTEN THE SKIN<br/>[FR] AGENTS DE MODIFICATION DE LA PIGMENTATION DE LA PEAU EN VUE DE L'ASSOMBRIR OU DE L'ÉCLAIRCIR
申请人:AFFICHEM
公开号:WO2016193220A1
公开(公告)日:2016-12-08
The present invention relates to a method for changing the pigmentation of a skin, a mucous membrane or hair with a compound of general formula (I), a cosmetic use of said compound of general formula (I), to cosmetic compositions comprising said compound of general formula (I), and to new depigmenting agents.
Pyrazolidine derivative, radical scavenger, brain-infarction depressant, and brain-edema depressant
申请人:SHISEIDO COMPANY LIMITED
公开号:EP0736526A1
公开(公告)日:1996-10-09
A pyrazolidine derivative or a salt thereof in accordance with the present invention is expressed by the following formula 1:
wherein A represents a group expressed by - CH2-, -CO-, -CS-, -CH2CO-, or -CH=CH-CO-; B represents a group expressed by -O- or -NH-; n is an integer of 1 or 2; R represents an alkenyl group; and R1 and R2 represent a lower alkyl or benzyl group.
The pyrazolidine derivative above mentioned, as a radical scavenger, has antioxidant effect and lipid peroxidation inhibitory activity so as to be available for inhibiting brain infarction or brain edema.
The present invention relates to a method for lightening a skin or a mucous membrane with a depigmenting agent, a cosmetic use of said depigmenting agent, to cosmetic compositions comprising said agent, and to new depigmenting agents.
A pyrazolidine derivative or a salt thereof in accordance with the present invention is expressed by the following formula 1: ##STR1## wherein A represents a group expressed by --CH.sub.2 --, --CO--, --CS--, --CH.sub.2 CO--, or --CH.dbd.CH--CO--; B represents a group expressed by --O-- or --NH--; n is an integer of 1 or 2; R represents an alkenyl group; and R.sub.1 and R.sub.2 represent a lower alkyl or benzyl group. The pyrazolidine derivative above mentioned, as a radical scavenger, has antioxidant effect and lipid peroxidation inhibitory activity so as to be available for inhibiting brain infarction or brain edema.