The comparison the table is built to make is not "which route is best." It is "which route fits the gap between your skin goals and your budget." Topical creams have a defensible role in daily maintenance
Your best insurance to protect yourself against such cases is to only accept injecting pure B12, mixed only with pure, preservative-free, sterile saline
Aziz D, Rafiq S, Saini P, Ahad I, Gonal B, Rehman SA, Rashid S, Saini P, Rohela GK, Aalum K, Singh G, Ganesh BN, Iliya MN (2025) Remote sensing and artificial intelligence: revolutionizing pest management in agriculture
Over time it can contribute to anemia and, in more serious cases, nerve problems