Monoterpene derivatives of chalcone or dihydrochalcone and their use as depigmenting agents
The present invention relates to new monoterpene derivatives of chalcone or dihydrochalcone and their use as a depigmenting agent.
1. A method for bleaching and/or lightening one or more selected from skin, bristles and hair of a subject, which comprises:
administering to said one or more selected from skin, bristles and hair a cosmetic composition comprising:
a compound of formula (I)
wherein:
is a double bond,
R1=H or CH 3 , and
R2=OH.
2. The method of claim 1 , wherein the cosmetic composition further comprises an extract, wherein the extract is an extract of plants selected from the genus of Helichrysum, Piper, Lindera and Mitrella.
3. The method of claim 2 , wherein the plants are selected from Helichrysum gymnocepahlum (DC) Humbert, Piper hostmannianum, Piper hispidum, Piper aduncum, Lindera aggregata, Lindera glauca, Lindera umbellatta, MitreIla mesnyi and Mitrella kentii.
4. A method for reducing, removing and/or preventing pigmentation spots on the skin of a subject, which comprises:
administering to the skin of the subject a cosmetic composition comprising:
a compound of formula (I)
wherein:
is a double bond,
R1=H or CH 3 , and
R2=OH.
5. The method of claim 4 , wherein the pigmentation spots are induced by UV light or cholasma, or are age spots.
6. The method of claim 4 , wherein the cosmetic composition further comprises an extract, wherein the extract is an extract of plants selected from the genus of Helichrysum, Piper, Lindera and Mitrella.
7. The method of claim 6 , wherein the plants are selected from Helichrysum gymnocepahlum (DC) Humbert, Piper hostmannianum, Piper hispidum, Piper aduncum, Lindera aggregata, Lindera glauca, Lindera umbellatta, Mitrella mesnyi and Mitrella kentii.