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Ensure adequate zinc intake to counterbalance copper
Many of this studys subjects also had ligament sprains and tendon issues, which often heal on their own over time, so its unclear if these improvements were due to the peptide or just the passage of time (the study had no control group)
This will look different for different individuals, so it can be helpful to consider the extremes
Incorrect and Impure Products: Many products contain the wrong amino acid sequence or have purity levels as low as 5-75%, filled with unknown chemical byproducts
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