IP Library Granted Patent US 12,599,552
Granted Patent B2
US 12,599,552 · App. 18/463,921 · Granted Apr 14, 2026

Cosmetic composition containing extract of

Inventors: Jae Soeb Lee (Cheongju-si, KR); Jun Tae Bae (Cheongju-si, KR); Jun Hwan Jang (Cheongju-si, KR); Ah Reum Jung (Cheongju-si, KR); Na Ri Kim (Cheongju-si, KR); Ji Yeon Lee (Cheongju-si, KR); So Hyun Mun (Cheongju-si, KR)
Assignee: J2KBIO CO., LTD.
A61K8/9789A61Q19/00A61K2800/75
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Quick Facts
Patent No.
US 12,599,552
App. No.
18/463,921
Granted
Apr 14, 2026
Kind
B2
Abstract

The present disclosure relates to a cosmetic composition containing an extract of Cyperus rotundus extracted using warm microbubbles. The extract inhibits nitric oxide (NO) production and exhibits excellent anti-inflammatory efficacy by inhibiting the expression of interleukin 6 (IL-6), cyclooxygenase-2 (COX-2), interleukin-1β (IL-1β), and tumor necrosis factor-α (TNF-α), which are inflammatory expression factors. In addition, the extract enhances the expression of aquaporin-3 (AQP-3), hyaluronan synthase 2 (HAS-2), claudin-1 (CLDN-1), cadherin 1 (CDH1), filaggrin (FLG), and involucrin (IVL), which are genes related to the skin barrier and moisturizing. Thus, when using the extract for cosmetic products, excellent effects can be exhibited in skin soothing, moisturizing, enhancement of the skin barrier, relief of irritation such as erythema, relief of pruritus, and the like, so the extract can be usefully applied to multi-care products that improve skin conditions.

Claims (10)

1 . A method of providing anti-inflammatory and skin-soothing effects to a subject in need thereof, comprising:

preparing a composition containing an extract of Cyperus rotundus extracted using warm microbubbles, and

applying the composition to skin of the subject.

2 . The method of claim 1 , wherein the composition contains α-cyperone.

3 . The method of claim 1 , wherein the extract inhibits nitric oxide (NO) production.

4 . The method of claim 1 , wherein the extract inhibits expression of a gene selected from the group consisting of inflammatory expression factors interleukin 6 (IL-6), cyclooxygenase-2 (COX-2), interleukin-1β (IL-1β), and tumor necrosis factor-α (TNF-α).

5 . The method of claim 1 , wherein the extract has an efficacy of enhancing a skin barrier.

6 . The method of claim 1 , wherein the extract enhances expression of a gene selected from the group consisting of aquaporin-3 (AQP-3), hyaluronan synthase 2 (HAS-2), claudin-1 (CLDN-1), cadherin 1 (CDH1), filaggrin (FLG), and involucrin (IVL).

7 . The method of claim 1 , wherein the extract has an efficacy of relieving skin irritation.

8 . The method of claim 1 , wherein the subject suffers from erythema or pruritus.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 8, 2023
From: LEE, JAE SOEB; BAE, JUN TAE; JANG, JUN HWAN; JUNG, AH REUM; KIM, NA RI; LEE, JI YEON; MUN, SO HYUN
To: J2KBIO CO., LTD.
Reel/Frame 064849/0308 →
Priority Claims (1)
KR 10-2022-0170937 · Dec 8, 2022 · national
Continuity (2)
Continuation PCTKR2023009358 · Jul 4, 2023
Related Publication 20240189219A1 · Jun 13, 2024
References Cited (10)
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Khan et al., Sesquiterpene derivatives isolated from [cited by examiner]
Korean Office Action of No. 10-2022-0170937 dated Jan. 10, 2023. [cited by applicant]
Communication issued Jul. 8, 2025 in Japanese Application No. 2023-557021. [cited by applicant]