How do I mix the BB Hybrid Stain for brows?Updated a year ago

Mix the BB Hybrid Stain with the developer using the ratio 4:2, stain to developer. First, apply BB Lash & Brow Cleanser to remove any makeup and then use BB Brow Scrub with the BB Brow Scrub Brush to exfoliate. Wipe off with a dry cotton pad and re-cleanse with the BB Lash & Brow Cleanser to remove all scrub debris, leaving the skin smooth, dry, and oil. Map the brows using a BB Brow Mapping Pen before mixing the stain and developer in the advised ratio.