A beauty products industry executive, Tom Redmond stands out as founder and former owner of the Aussie hair care company. Former Aussie owner Tom Redmond now stands out as president of Onesta, which manufactures and distributes natural and paraben-free hair care products.
Medical science has long known that a family of chemicals known as parabens can mimic the effects of the hormone estrogen on the body. According to a 2015 study published in Environmental Health Perspectives, this effect may be strong enough to increase the growth of tumor cells in the body.
The research team investigated the effects of parabens on HER2, a type of estrogen that is found in tumors and is linked to aggressive cancer growth. The team used growth factor heregulin to activate HER2 receptors, a process that prompted the development of breast cancer cells. When they exposed these cells to parabens, tumor cells proliferated more rapidly.
The team then lowered its use of heregulin and increased paraben exposure. Findings revealed that although paraben concentrations were 100 times less than those of the previously used heregulin, these findings add to previous research into the effects of paraben exposure, which studies have shown may contribute to a broad range of reproductive, gynecological, and other conditions.
Experts note that while there is not yet sufficient evidence to ban parabens and similar chemicals, consumers can reduce their exposure through informed product choice. Selected products should be specifically marked paraben-free, as some manufacturers list use such general terms as fragrances to note chemicals on ingredient lists, making it more difficult to determine actual ingredients.