Forms generally less suitable for GLP-1 users: Magnesium oxide : Generally less well absorbed with more pronounced laxative effects Magnesium sulphate (Epsom salts) : Primarily used as a laxative rather than nutritional supplement When selecting a supplement, look for products from reputable manufacturers that comply with UK food supplement regulations (most magnesium supplements are regulated as foods under Food Standards Agency rules, not as medicines)
Vitamin C is essential for collagen production, reducing oxidative stress, and evening out skin tone
Age Considerations Age is a significant factor, particularly for peptides that interact with the Growth Hormone axis
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You may lean toward injections if: You are managing a chronic or complex condition Long-standing oxidative stress, autoimmune disorders, or significant toxin exposure Need for aggressive antioxidant support under medical supervision You have clear systemic or aesthetic goals Skin brightening, hyperpigmentation, and overall complexion benefits Recovery after major illness, surgery, or chemotherapy You need controlled, high-dose delivery Significant nutrient deficiencies where oral or intranasal routes have not been sufficient Situations where your clinician also uses NAD boosters, vitamin B12 injections, or other IV nutrients You prefer periodic, supervised care Comfortable scheduling clinic visits and following a structured protocol Want direct monitoring of how you respond and how dosages should be adjusted You are not a good candidate for nasal therapies Frequent severe nosebleeds, nasal structural issues, or chronic congestion that prevents reliable intranasal absorption Past reactions to intranasal products like glutathione, NAC, or melatonin sprays Even if you primarily use injections, your clinician may still recommend non-invasive tools such as glutathione nasal spray , NAD nasal spray , or kanna nasal spray theanine between sessions for ongoing support

These drugs are incredibly effective, Gler said