Marlen has been working in the fragrance industry since 1990. Having started in sales and line representation, he later began a career in fragrance journalism as a writer for such notable sites as NowSmellThis and Basenotes. Marlen’s contributions have been included in The Washington Blade, MensJournal.com, MensFitness.com, Playboy.com, Forbes.com, NYTimes.com and international publications such as Finland’s Anna magazine and Canada’s Glow magazine. His self-created, online magazine, PerfumeCritic.com (2006-2010)/ThePerfumeCritic.com (2011-present) has earned him international recognition and invitations to speak at events such as the 2008 Symposium of the American Society of Perfumers. In 2014 he took a year away from academia to develop his own company, Kings Palace Perfumery (currently relocating to New York). In 2007, after developing his own fragrance magazine, Marlen was invited to write for Fragrantica.com and eventually joined them as a full time writer and Managing Editor in 2015.
In addition to Fragrantica.com, Marlen has also contributed to the following: