I have experienced initial slight dryness right after rinsing that is why i suggested a to follow with a moisturizing conditioner. I usually follow with going under my hooded with my moisturizing conditioner for about 20 minutes. I have seen the new bigen expressive line but I have had no experience with anything other than oriental black.
It is permenant.
From ubh publications:The permanent hair color can NOT contain Peroxide, or Ammonia. Bigen is mixed with water. I actually apply my color immediately after the retouch because the hair shaft is wide open and accepts the color well. Meaning, that if I wait and apply days later after the retouch the hair cuticle has closed, and every time I wash my hair and towel dry, the dye comes off the surface of the hair on the towel! If applied immedately after the relaxer, you dont have that problem. If you have burned your scalp after the chemical, the color is not going to feel real good on your scalp so try hard to keep it off your scalp too. Ensure you follow the instructions and do not use heat or a plastic cap as this will cause your hair to break even with Bigen!"