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J Sci Med Sport 20:e36e37 Fukuta S, Oyama M, Kavalkovich K, Fu F, Niyibizi C (1998) Identification of types II, IX and X collagens at the insertion site of the bovine Achilles tendon

Some users report a mild drop-off or return of symptoms after stopping, especially if: The underlying condition was not fully healed BPC-157 was used without addressing root causes (e.g., diet, stress, overtraining) They used lower doses or short durations without stacking foundational support like L-Glutamine or Collagen Protein This doesn't mean BPC-157 stopped workingrather, that the body still needs support to complete the healing process

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However, these same pathways might also intensify craving during initial withdrawal phases, potentially accelerating relapse