Fermented products such as tempeh and miso (obtained from fermented soya beans), shiitake mushrooms and algae (spirulina and nori) contain substances which are chemically similar to vitamin B12
If you have seen those two mixed up on forums, the source is unreliable
Zhang Y-J, Guo J-L, Xue J-c, Bai C-L, Guo Y (2021) Phthalate metabolites: characterization, toxicities, global distribution, and exposure assessment
Make sure to use an accurate milligram scale to avoid toxic excess amounts
Research has identified specific biochemical changes following cold exposure
Key Features 1500mcg methylcobalamin per ampoule Active form of vitamin B12 Designed for efficient absorption Supports normal nervous system function Helps maintain healthy vitamin B12 levels Injectable ampoules for IM/IV use Available in multiple pack sizes Suitable For Individuals with low or deficient vitamin B12 levels Those experiencing fatigue associated with B12 deficiency Vegetarian or vegan diets Individuals seeking an alternative to oral supplementation Product Information Active Ingredient: Methylcobalamin Strength: 1500mcg per ampoule Form: Injectable ampoules Administration: Intramuscular (IM) or intravenous (IV) use Expiry Date: 07/2027 Needles and syringes are not included