Hairology can affect your menstrual cycle due to bladderwrack. When I wrote and told them my usually very regular period had come a week early with the product being the only change in my life I was told politely to get lost and deal with it. It wasn’t till I alerted them that not issuing a refund was against consumer rights and sent evidence from medically reviewed sites that bladderwrack can cause issues with menstrual cycle, stating I would contact ACCC that they silently issued me a refund. Grateful for the refund but disappointed that they did not address the issue that there is an i ingredient that can potentially affect fertile women’s hormones and that it wasn’t handled eloquently nor with grace and sensitivity. Be aware that it may impact your regular cycle!