Laughlin GA, Barrett-Connor E, Criqui MH, Kritz-Silverstein D: The prospective association of serum insulin-like growth factor I (IGF-I) and IGF-binding protein-1 levels with all cause and cardiovascular disease mortality in older adults: the Rancho Bernardo Study
it's about how much your body can actually use
En cambio, se desaconseja asociarlo directamente con altas concentraciones de vitamina C (cido L-ascrbico) o AHA, ya que el pH cido de estos activos puede desestabilizar el complejo cprico y reducir la eficacia del GHK-Cu
Gastrointestinal Side Effects The most common adverse events were gastrointestinal in nature, as expected for this drug class: Nausea the most frequently reported GI side effect, typically most pronounced during dose escalation and diminishing over time Diarrhea reported at moderate frequency Constipation less common than nausea but clinically relevant for some participants Vomiting generally mild and often transient These GI effects are mechanistically linked to GLP-1 receptor activation (slowed gastric emptying, central appetite suppression) and are a recognized feature of all GLP-1-based therapies
Copper: Copper deficiency is rare