They measure two different things
Federal enforcement, state penalties, and lawsuits have all happened to clinics that mishandle peptides
Baseline and interval laboratory monitoring should include: fasting glucose and HbA1c (tirzepatide can cause hypoglycemia in non-diabetic subjects if caloric intake drops too low), lipase and amylase (pancreatitis risk with GLP-1 agonists), liver function tests (AST, ALT, bilirubin), and thyroid panel (TSH, free T3, free T4)
Body Works sources through licensed compounding pharmacies under provider supervision
On a "blend vs separate components" basis, Glow Blend offers larger savings versus separate purchase than Wolverine Stack does but you should only buy a Glow Blend if you actually need GHK-Cu in your research