Tier 2 Intermediate Training and High-Risk Areas
Before this step, finish Tier 1 Foundational Injector Training. This page reads the second tier in order and ends with a check on what it adds to the base level.
What Tier 2 adds
PubMed Central describes the second tier as an expansion of the first. It states: "Tier 2 expands on education covering advanced anatomy and high-risk areas, injection techniques (cannula, full-face rejuvenation), complication management (vascular occlusion, delayed hypersensitivity reactions), and the use of adjunctive treatments (lasers, skin booster, plasma rich proteins [PRP], microneedling, chemical peels)."
The list has four parts: anatomy, technique, complications and adjunctive treatments. Take them one at a time when you read a course outline.
Cannula technique
Because the tier names the cannula, it helps to know the instrument it is measured against. Wikipedia has a general entry on the hypodermic needle that gives you the plain reference point.
High-risk areas and vascular occlusion
Vascular occlusion is the complication the tier names first. A paper in PubMed Central, a systematic review and meta-analysis of risk factor analysis for vascular occlusions after dermal filler injections, is a place to read about it in more depth. Read it alongside the course outline, and ask where the course teaches this topic.
Which of the four parts a course covers
You are done when you can state which of the four parts a course covers and which it leaves out. If you plan to train in Summit, New Jersey, ask each program for its outline in writing. Then continue to Tier 3 Expert Training and Teaching Roles.