I wound up needing 1 1/2 inch needles, the only downside is they dont give you sizing options when buying their products
SHIRLEY, NY 11967 Carton NDC 0517-0031-25 Rx Only Cyanocobalamin Injection, USP 1,000 mcg/mL For Intramuscular or Subcutaneous Use Only 25 x 1 mL Multiple-Dose Vials AMERICAN REGENT, INC

Why It Matters This service may be relevant for individuals experiencing: Persistent fatigue or low energy Difficulty concentrating or brain fog Poor focus or mental sluggishness Dietary insufficiency, including vegan or vegetarian diets Reduced gastrointestinal absorption, such as in pernicious anaemia or certain digestive conditions Potential benefits may include: Improved energy levels and mental clarity Support for normal metabolic function Mood and general wellbeing support Direct absorption by bypassing the digestive system Who is the Vitamin B12 Injection for Vitamin B12 and B complex injections may be suitable for individuals with ongoing fatigue or low energy, people experiencing brain fog or cognitive slowing, those following restrictive diets, athletes or individuals under sustained physical or mental stress, and patients with known absorption issues including pernicious anaemia or other conditions affecting nutrient uptake

More than just weight loss, these injections enhance liver function, boost red blood cell production, and fight off fatigue
Leukocyte-Poor PRP (LP-PRP): This formulation has the white blood cells filtered out