tb500 vs bpc 157 Heal or Harm: Body Protective Compound-157 in the Gray Zone Peptides for Healing: BPC-157, TB-500
Description
It comes in a pre-filled, multi-use vial and is designed to prevent microbial growth when mixed with the peptide

The injection itself is typically given into the muscle of the upper arm or thigh

Although the fibers were strong enough to bind different tissue types together, they were still soft enough to provide flexibility and cushioning (Figure 19)

Whether the research will call for a BPC-157 + TB-500 nasal spray or injections will depend on the nature of trial design

I would recommend

29-31 gauge insulin syringes minimize tissue trauma while remaining practical for peptide viscosity