Justyna Strzeszynska

Founder and CEO

Justyna (she/her) has always enjoyed research and problem-solving leading to new ventures. During her school years she operated a milk bar from her mum’s kitchen in Poland. Next, she set up the Bank for Women, dedicated to women’s finances and lastly developed a concept of a commercial brush inspired by the papillae on a cat's tongue (it’s a long story)!

Justyna started her career in the fast-paced world of finance and investment - she is no stranger to founding businesses. After four years working as a financial advisor, she established Genius Ventures, an angel investment network and turned her attentions to investing in alternative energy projects. 

Joii was born out of Justyna's personal frustration with the period care market. Having suffered with heavy and painful periods most of her adult life, she had been unable to find a product that met her needs and realised just how little innovation there had been in the industry. She decided to bring together her desire for better performance and the need for some honest sustainability in period care. She also established Joii Labs with the ambition to carry out research and strategize better solutions. In fact, this research resulted in multiple patent applications and a desire to bring these advancements to market. The rest, as they say, is history!

Our Team

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