Webster Dictionary(0.00 / 0 votes)Rate this definition: Melanin(noun) a black pigment found in the pigment-bearing cells of the skin (particularly in the skin of the negro), in the epithelial cells of the external layer of the retina (then called fuscin), in the outer layer of the choroid, and elsewhere. It is supposed to be derived from the decomposition of hemoglobin.
How to prepare your insulin dose if you are using two types of insulin: 1  When you mix regular insulin with another type of insulin, always draw the regular insulin into the syringe first. When you mix two types of insulins other than regular insulin, it does not matter in what order you draw them into the syringe.
A American Diabetes Association answered. There are two types of basal insulin people with diabetes could take: - Intermediate-acting insulin (NPH) takes 2 to 4 hours to reach the blood.It works hardest from 4 to 10 hours after your shot and lasts 10 to 16 hours. - Long-acting insulin (Detemir or Glargine) starts working several hours after your shot.here are two types of basal insulin people with diabetes could take: - Intermediate-acting insulin (NPH) takes 2 to 4 hours to reach the blood.