US 12,440,433 B2
Brightening cosmetic composition comprising sodium pyruvate as active ingredient
Seon Guk Choi, Seoul (KR); Oun Young Lee, Seoul (KR); Jin Hyun Kim, Seoul (KR); Jun Mun Lee, Seoul (KR); Nae Gyu Kang, Seoul (KR); Seong Heon Hong, Seoul (KR); and Seo Hun Roh, Chungcheongnam-do (KR)
Assigned to LG HOUSEHOLD & HEALTH CARE LTD., Seoul (KR); and TAI GUK PHARM. IND. CO., LTD., Chungcheongnam-go (KR)
Appl. No. 18/007,390
Filed by LG HOUSEHOLD & HEALTH CARE LTD., Seoul (KR); and TAI GUK PHARM. IND. CO., LTD., Chungcheongnam-do (KR)
PCT Filed Jul. 29, 2021, PCT No. PCT/KR2021/009856
§ 371(c)(1), (2) Date Jan. 30, 2023,
PCT Pub. No. WO2022/025656, PCT Pub. Date Feb. 3, 2022.
Claims priority of application No. 10-2020-0095328 (KR), filed on Jul. 30, 2020.
Prior Publication US 2023/0270640 A1, Aug. 31, 2023
Int. Cl. A61K 8/365 (2006.01); A61K 8/42 (2006.01); A61K 31/17 (2006.01); A61K 31/19 (2006.01); A61K 31/22 (2006.01); A61P 17/00 (2006.01); A61Q 19/00 (2006.01); A61Q 19/02 (2006.01); A61Q 19/08 (2006.01); A61Q 19/10 (2006.01)
CPC A61K 8/365 (2013.01) [A61K 8/42 (2013.01); A61K 31/17 (2013.01); A61K 31/19 (2013.01); A61Q 19/02 (2013.01); A61K 2800/5922 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A composition for skin brightening or skin pigmentation inhibition, comprising sodium pyruvate in combination with urea and/or hydroxyethyl urea, wherein sodium pyruvate is in an amount of 0.01 to 0.5% by weight based on the total weight of the composition, urea is in an amount of 0.01 to 2% by weight based on the total weight of the composition, and hydroxyethyl urea is in an amount of 0.01 to 4% by weight based on the total weight of the composition, and wherein the composition has a synergistic skin brightening effect from the combination of sodium pyruvate and urea and/or hydroxyethyl urea.