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One cited study of 20 women found new collagen production in 70% of those treated with Cu-GHK after one month, compared with 50% for vitamin C and 40% for retinoic acid [2]
Timing considerations apply here
Combined with GLP-1s, B12 injections can enhance overall wellness and support the bodys nutrient needs during the weight loss process
Compare that to something like creatine, which has decades of human safety data behind it and position statements built on trials
Your Nexa provider will confirm what is appropriate for your goals and health history
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