does sublingual b12 work as well as injections vs. B12 Injections: Which Option Is Right for You? – WhyNotNatural Vitamin B12 Injections vs. Supplements:

Possible side effects include: Redness Itching Tingling Dryness Peeling Mild stinging Breakouts or small bumps Bruising or pain with injectable use Allergy-type reactions such as hives or swelling Stop using the product and seek medical care if you notice hives, swelling, trouble breathing, severe irritation, or symptoms that feel unusual for you

That number gets even worse if you have hypothyroidism (up to 50% of these patients have B12 deficiency)

The groups most likely to develop B12-related hair and skin changes are the same ones at risk for deficiency generally: vegans and vegetarians, adults over 50, people on long-term metformin or proton pump inhibitors, anyone who's had bariatric surgery, and people on GLP-1 protocols whose reduced appetite has significantly lowered their overall nutrient intake for an extended period

Enhancing Mood and Focus Losing weight isnt just physicalits also mental

You don't have to wait around to find out if you are B12 deficient or not