Black seed oil has several applications and benefits for problematic skin conditions. The oil is found in many health foods stores and pharmacies. Examples of applications for beauty and skin include:
gel is a different story.. some gels have damaging chemicals such as alcahol which can dry your hair and actually extract natural oils from your hair and potentially break down the proteins that make up your hair.. this is more opinion that actual research, but from my p.o.v, wax is a far better choice =]. Source(s):
Hair developer is mixed with color in order to activate the color and help it penetrate the hair shaft. Without developer, color would have no effect whatsoever on hair. It would lay on the outside of the hair shaft only to be rinsed away with the next shampoo. There are two main types of developer: creme and liquid.