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EP 4 171 495 A1

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(43) Date of publication: 03.05.2023 Bulletin 2023/18 (21) Application number: 21740446.6 (22) Date of filing: 29.06.2021

(51) International Patent Classification (IPC):  A61K 8/41(2006.01) A61K 8/58(2006.01) A61K 8/891(2006.01) A61Q 1/14(2006.01) A61K 8/42(2006.01) A61K 8/898(2006.01) A61Q 1/10(2006.01) A61Q 5/06(2006.01) (52) Cooperative Patent Classification (CPC): A61Q 1/14; A61Q 5/065; A61K 2800/95; A61K 8/891; A61K 8/898; A61Q 1/10; A61K 8/585; A61K 2800/884; A61K 2800/43; A61K 8/41; A61K 8/42 (86) International application number: PCT/EP2021/067928 (87) International publication number: WO 2022/002987 (06.01.2022 Gazette 2022/01)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 30.06.2020 US 202063046110 P (71) Applicant: Wella Germany GmbH 64295 Darmstadt (DE)

(72) Inventors: HERRLEIN, Mathias Kurt 61476 Kronberg (DE) MCKELVEY, Graham Neil 61479 Glashütten (DE) CRNE, Matija 65185 Wiesbaden (DE) GODFREY, Simon Paul 61440 Oberursel (DE) MOHR, Corinne Violette 64653 Lorsch (DE) WEBER, Ingo 4057 Basel (CH) PINAKATTU, Swapna 55128 Mainz (DE) KIEFER, Patrick Alexander 64293 Darmstadt (DE) BRAUN, Petra Barbara 64839 Münster (DE) GROSS, Andrej 64291 Darmstadt (DE) HERKNER, Felix 65817 Eppstein (DE) MEYER, Axel 60486 Frankfurt am Main (DE) SCHMIDT, Carl Uwe Oswald Ludwig 64354 Reinheim (DE) BROOK, Michael, A. Ancaster, Ontario L9G 4M4 (CA) CLARK, Timothy Robert Clark 90587 Obermichelbach (DE) SCHATZ, Juergen Karl Anton 91325 Adelsdorf (DE) SCHREINER, Claus 27711 Osterholz-Scharmbeck (DE) (74) Representative: Zimmermann & Partner Patentanwälte mbB  Postfach 330 920 80069 München 80069 München (DE)