In a separate head-to-head comparison, GHK-Cu outperformed both retinol (vitamin A) and vitamin C in improving skin firmness and elasticity, and it did so without the irritation, photosensitivity, or adjustment period associated with retinoid use
However, if youre not deficient in B12, additional supplementation may not provide significant benefits
Vegetarians who consume eggs and dairy may get adequate amounts
[10] [16] Whilst similar specific guidance does not yet exist for GLP-1 receptor agonists, clinical vigilance regarding nutritional status is prudent, especially in patients experiencing significant weight loss or gastrointestinal symptoms
The challenge during semaglutide use involves reduced appetite making it harder to consume adequate amounts of any food, including b12-rich options