What is It? An essential at the tinting step of your treatments, our vegan-friendly BrowStay 3% Developer works in conjunction with the BrowStay Hybrid Dyes to create a long-lasting, bespoke colour for all of your clients. BrowStay 3% Developer activates the colour molecules in our BrowStay Hybrid Dyes by opening the cuticle layer of the brow hairs. This allows the…
