What ingredients are used in the COVID-19 vaccines?

Pfizer-BioNTech Vaccine Ingredients

According to the U.S. Food and Drug Administration (FDA), the Pfizer-BioNTech COVID-19 vaccine ingredients include:

  • Messenger ribonucleic acid (mRNA)
  • Lipids:
    • (4-hydroxybutyl)azanediyl) bis(hexane-6,1-diyl)bis(2-hexyldecanoate)
    • 2 [(polyethylene glycol)-2000]-N,N-ditetradecylacetamide
    • 1,2-Distearoyl-sn-glycero-3-phosphocholine
    • Cholesterol
  • Potassium chloride
  • Monobasic potassium phosphate
  • Sodium chloride
  • Dibasic sodium phosphate dihydrate
  • Sucrose

Moderna Vaccine Ingredients

According to the FDA, the Moderna COVID-19 vaccine ingredients include:

  • Messenger ribonucleic acid (mRNA)
  • Lipids:
    • SM-102, polyethylene glycol [PEG]
    • 2000 dimyristoyl glycerol [DMG]
    • Cholesterol
    • 1,2-distearoyl-sn-glycero-3-phosphocholine [DSPC])
  • Tromethamine
  • Tromethamine hydrochloride
  • Acetic acid
  • Sodium acetate
  • Sucrose

Show All Answers

1. How do I know that a COVID-19 vaccine will be safe?
2. What ingredients are used in the COVID-19 vaccines?
3. What are the possible side effects of a COVID-19 vaccine?
4. Should I continue to wear a mask, social distance, maintain good hygiene and avoid large gatherings?
5. Who was represented in the clinical trials?
6. Is it safe to get my child vaccinated?
7. Is it safe for pregnant women to get vaccinated?
8. How are vaccine providers vetted? Do they have to have medical experience?
9. Why are medical professionals optimistic about this vaccine?
10. If someone is sick or running a low-grade fever, can they still get the vaccine?