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If efficacy favors tretinoin, tolerance decisively favors GHK-Cu and for many people, tolerance is what determines whether a product is actually used long enough to work
Every recommendation starts with a comprehensive consultation and is guided by thoughtful medical evaluation and ongoing monitoring
Topical GHK-Cu is generally well tolerated and has a low risk of side effects
Senescent cells are present for a short period (between 3 and 12 days) in young mice in the wound site
Sleep improvements from GH peptides can begin within first weeks
Gastrointestinal hormones and the dialogue between gut and brain
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