https://video.igem.org/videos/watch/9445f3a8-7687-42da-bc9b-c316e34131f0 Title: BlackNova: A Safe and Sustainable Polydopamine Bio-Hair Dye Description: Hair graying often causes appearance anxiety, yet conventional chemical dyes rely on harsh ingredients like p-phenylenediamine that can cause severe scalp allergies. To solve this, we created a safe, eco-friendly hair dye kit based on polydopamine, a natural dark pigment with excellent body compatibility. Using engineered harmless bacteria as green factories, we biologically produce dopamine from simple amino acids under mild conditions. We also designed a special bio-peptide that acts like glue, helping the natural pigment stick firmly to hair proteins for long-lasting color. Packaged as a practical, easy-to-use kit, our product replaces toxic chemical treatments with a gentle bio-cleansing routine, offering a healthy and commercial solution to graying hair. Wiki | Official Page Thu, 29 Oct 2026 22:26:47 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://video.igem.org https://video.igem.org/client/assets/images/icons/icon-1500x1500.png https://video.igem.org/videos/watch/9445f3a8-7687-42da-bc9b-c316e34131f0 All rights reserved, unless otherwise specified in the terms specified at https://video.igem.org/about and potential licenses granted by each content's rightholder.