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Concentrations naturally decline with age (from about 200 ng/mL at age 20 to 80 ng/mL by age 60), which is part of why supplementation makes sense
Injections work best inside a solid routine: adequate protein, smart training, sun protection, hydration, and steady micronutrient intake
Inclusion criteria encompassed all studies employing in vitro models (e.g., fibroblast proliferation, keratinocyte migration, collagen synthesis assays), in vivo studies using animal models for wound healing assessments, clinical trials evaluating the efficacy and safety of tripeptides in human subjects, and studies utilizing molecular, biochemical, or histological analyses to determine the mechanisms of tripeptides in wound recovery
None of that makes this an easy yes or no
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