Hybrid Dye Developer (30ml) BMUP Our in-depth

Our in-depth

and biodegradable

brushed-up brows while supporting brow hair condition throughout the treatment process

making them perfect for crafting exceptional brows

1 x Boxed Keratin Brow & Lash Boost Serum (full-size)

Hybrid Dye Developer (30ml) BMUP Our in-depthDesigned for precision and consistency, the London Brow Hybrid Dye Developer is formulated to work seamlessly with our Hybrid Dye system. This cream developer ensures smooth mixing and controlled application, helping you achieve reliable, professional results with every treatment. Product details: 30ml bottle For use with London Brow Hybrid Dye only 1: 1 mixing ratio Cream formula for easy blending Important: Not compatible with London Brow Tinted