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The honest read is that two months is too early to judge an anagen-acting compound on visible regrowth, by the same logic that hair-loss trials wait 3-6 months

Future research should focus on large-scale, well-controlled randomized trials with standardized dosing protocols, clearly defined deficiency thresholds, and long-term follow-up to strengthen the evidence base and guide clinical practice

et al., Altern Ther Health Med (2021) Small case series on BPC-157 for knee pain (author-affiliated clinic) Lee E

This means a combination of vitamins could be needed to effectively tackle all of the factors contributing to the nerve damage