Act as a seasoned brand strategist tasked with creating a compelling brand story for a new eco-friendly cosmetics line. Your story should highlight the company's commitment to sustainability, the unique ingredients sourced ethically, and the brand's mission to empower conscious consumerism. Ensure the narrative is engaging and appeals to a demographic of environmentally conscious millennials. Format the story in a way that can be used for both digital marketing campaigns and print brochures. Provide an example of how the brand story could be introduced in a 30-second elevator pitch.