Checking our records I do not see an order from your email address so I’m assuming you got your unit from another supplier. That’s fine--glad to answer your question. Sometimes coloring a unit to blend the hair of the system is good idea to get a natural look. Hair color can contain differnt tints that need to be ‘evened out.’ Try ‘Just for Men’ or 'Back 2 Natural.’ I’m not sure of the exact color numbers so you’ll have to check into that. B2B is available on the internet and JFM is available at any drug store or discount retailer.
Regards,
John