All COVID-19 vaccines contain common ingredients like fats, salts and a small amount of sugar.
In addition, mRNA vaccines contain Polyethylene Glycol (PEG), while the Johnson & Johnson vector vaccine contains polysorbate.
If you are allergic to PEG, you should not get an mRNA COVID-19 vaccine. Ask your doctor if you can get the Johnson & Johnson vaccine.
If you are allergic to polysorbate, you should not get the Johnson & Johnson COVID-19 vaccine. Ask your doctor if you can get an mRNA COVID-19 vaccine.
Regardless of which vaccine you get, you should be asked if you are allergic to any of their ingredients.
*Please note that on April 13, 2021, the FDA and CDC recommended a pause in the use of the Johnson & Johnson’s Janssen COVID-19 Vaccine.