Those that have the MTHFR mutation are only able to detox at a rate of 50%, versus someone without the mutation
(PubMed) Laaksonen R, Jokelainen K, Sahi T, Tikkanen MJ, Himberg JJ
Adding 1ml of water would give you a concentration of 10mg per 1ml
A 2006 Achilles-detachment study by Krivic and colleagues in the same journal applied BPC-157 intraperitoneally once daily at 10 g/kg, 10 ng/kg, or 10 pg/kg for 30 days in rats and reported that tendon-to-bone tissue, which did not heal spontaneously in saline controls, recovered with BPC-157 treatment, with directionally improved load-to-failure, stiffness, Young's modulus, and collagen organization at days 121, including in animals where healing had been impaired by 1 mg/kg 6-methylprednisolone though the abstract does not report numeric effect sizes or p-values
It is, however, possible that the pathological fear memories in PTSD are generalized, over-consolidated, or both, in a manner not captured by laboratory assessments of fear learning and extinction in healthy people