Hertfordshire brand shaking up the period product market

It’s been an incredible season for Hertfordshire entrepreneur Sara Llewellyn. After winning the 2025 Lord-Lieutenant’s Entrepreneurs Challenge in May, her brand, Mighty Eve, is capturing attention for all the right reasons, offering a bold, sustainable and science-led alternative in the period product market.

Mighty Eve’s core mission is clear: to empower people with comfortable, non-toxic, high-performing periodwear, without compromising the planet. As Sara explains: “We’re not just giving people a sustainable option, we’re giving them a better one. One that meets the demands of modern life and allows users to feel confident, comfortable and in control.”

The brand’s win comes at a timely moment. With recent studies highlighting the environmental and health impacts of traditional disposable products, estimated to be responsible for over 20,000 tonnes of plastic waste annually in the UK alone, consumers are seeking alternatives that don’t break the bank or the planet.

Mighty Eve’s product line has been rigorously tested to deliver reliable, affordable and sustainable periodwear that genuinely works. The business has already won three awards in 2025; in addition to its victory in the Lord-Lieutenant’s Entrepreneurs Challenge, the brand has won Women’s Health Retailer of the

Year and Sustainable Female Health CEO of the Year. But Mighty Eve is more than a product; it’s a movement. The company is building a stronger culture around period care. From low-cost membership plans to community outreach tackling stigma and body awareness, Mighty Eve is working to make sustainable care more accessible and inclusive. Workshops in schools and partnerships with local organisations aim to start conversations and support young people in understanding their bodies and their choices.

With growing demand, a loyal early customer base and an ethos rooted in innovation and integrity, Mighty Eve is one of Hertfordshire’s most exciting new businesses. As Sara puts it: “This isn’t just about sustainability, it’s about better solutions for people and planet.”