If you are looking specifically for support in lightening areas of your skin and reducing melanin production, then topical products can be a good choice
10.3390/genes10040257 80 ZhaoZ.NelsonA
Similar content being viewed by others Introduction Pentadecapeptide BPC 157 is known to possess therapeutic efficacy on variable tissue healing and angiogenesis that is considered through the activation of nitric oxide system as reported in previous studies 1,2,3,4,5,6
-20C, 1 month (sealed storage, away from moisture and light)
So the practical takeaway is not oral is better or SC is better. It is: pick one route, follow the documented per-dose figure for the vial you have, and keep the route constant so that whatever you observe is not confounded by a mid-stream route change
Poor Diet (Processed Foods and Sugar): A diet high in processed foods, refined sugars, and unhealthy fats can lower your bodys antioxidant defenses, including glutathione