German perfume and cosmetics retailer Douglas reportedly has appointed former GM Europe Opel marketing head Tina Mueller as chief executive, replacing Isabelle Parize who is stepping down.

Mueller, who worked in the beauty sector for 20 years prior to Opel, with time at Henkel and L'Oreal, will take the helm on 1 November, Reuters reported, citing Douglas.

The retailer is majority owned by private equity group CVC Capital Partners, which bought its stake from US buyout firm Advent in 2015 in a deal worth almost EUR3bn, the news agency said.

Parize had decided to step down at the end of October after more than six years with the group to pursue new business opportunities, Douglas told Reuters.

Former Opel CEO Karl-Thomas Neumann in July stepped down as the speaker of the management board and CEO of Opel/Vauxhall after news of the PSA takeover became public.

Michael Lohscheller, Opel CFO since September 2012, was appointed his successor immediately.

Neumann remained a member of the management board until the closing of the sale to PSA.