Key Takeaways:UK-based Ruka secured funding to scale its lab-grown hair fiber technology, Synths 2.Ruka fibers essentially eradicate the need for human hair on the extensions market.Freedom Trail Capital and Henkel Ventures co-led the funding round.Ruka, the biotech beauty startup, has closed a $4.5 million funding round co-led by Freedom Trail Capital and Henkel Ventures.WHO: Ruka was founded in 2020 by Tendai Moyo and Ugo Agbai, positioning itself at the intersection of materials science and the textured hair market. Ruka, a DTC hair extension brand designed specifically for Afro-Caribbean hair textures aiming to provide natural-looking options, has built a following through education-led community building and a broad portfolio spanning human hair extensions, wigs, styling products, hair perfumes, and tools. Its latest innovation, Synths 2, is a patent-pending collagen-based fiber designed to mimic the look and feel of human hair while avoiding the plastic fibers and sourcing concerns associated with traditional extensions.WHY: The investment will fuel the growth of Ruka's retail footprint, bolster production, and support its 2026 expansion into the US.IN THEIR OWN WORDS: Tendai Moyo told BoF that securing investment proved more complex than a typical beauty fundraising process: “Beauty investors understand consumer and retail distribution, and biotech investors understand material science. It’s very difficult to find investors who sit at that intersection,” she said.