Doc, why does some SMP turn blue ? Also in your practice what type of needle do you use? Some say a one 1RL needle is better than a three 3RL ?
Black inks when placed in the scalp, often look blue. This is due to the trichometic principles of light (https://encyclopedia2.thefreedictionary.com/trichromaticity). A good SMP operator doesn’t use pure black ink, but modifies the ink colors, many times using a brown ink. To get the color delivered in a reasonable timeframe, many operators use the 3 needle arrangement to keep control over costs.
from BaldingBlog - Hair Loss Info https://ift.tt/JDnhPgr
