BPC-157 and TB-500 are large, fragile molecules that degrade rapidly if exposed to heat, light, or microbial contamination during formulation
the FDA has stated it lacks sufficient information to know whether the substance would cause harm when administered to humans Evidence snapshot: The evidence base is almost entirely preclinical, decades of animal (largely rat) studies, mostly from one Croatian research group (Sikiric et al., University of Zagreb), with a single small human trial under the brand name "Bepecin" (around 2015) that did not lead to any FDA-approved use
Once the original container is opened, the water is exposed to potential contamination from the surrounding environment
If you find yourself frequently dosing at the lower end, the 2ml dilution might be more practical
Some patients report reduced scalp sensitivity or oiliness, which reflects the anti-inflammatory action