So I had my first customer who had unfortunately developed an allergy to that ghastly PPD! She wanted to know what the probability was of full grey coverage. All I can say is that it can depend on a multitude of things whether you will get full coverage or not ie. how quickly your hair grows, the texture, whether you currently have product on your hair.
You will definitely not get the same outcome as using chemical hair dye but it will still give you a good coverage. I ended with “trust me, you’ll feel better with the coverage YOU DO GET as to no coverage at all.” She bought three packets.