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GHK-Cu at equivalent dosing cannot rescue cells below the critical telomere length threshold that triggers irreversible growth arrest (Hayflick limit), because the primary block is structural (insufficient telomeric DNA) rather than oxidative
[1] Don't purchase over-the-counter B12 supplements without medical guidance, as this can interfere with accurate assessment and may mask underlying conditions
Summary: Patients with sulphonamide allergy must avoid all sulphonamide antibiotics (such as co-trimoxazole, sulfadiazine, and sulfamethoxazole), whilst non-antibiotic sulphonamides require individualised risk assessment as immunological cross-reactivity is unlikely but some products remain contraindicated
Seo YA, Lee S, Hennigar SR, Kelleher SL
