Accessibility Tools

Skip to main content

Vaccine Excipients

The information on this page was compiled from the CDC, FDA, HHS and the organization, Health Freedom Institute. (Download the original chart). A Midwestern Doc also lent their expertise.

For those who want to study the various inputs to this table and the CDC’s ever-changing narrative about what’s actually in these shots, keep reading. Otherwise, you can skip to the table.

The 2018 CDC Excipient List is the most comprehensive. The CDC has since made it almost impossible to find. We obtained a copy that you can download here. We mainly relied on the 2021 Pink Book, Appendix B, which is the latest official list of excipients from the CDC. More recently, Covid and RSV vaccines have been added to the childhood schedule, so we obtained the list of excipients from the FDA inserts (full documentation available here).

Making matters considerably more complicated, the Italian research institute Corvelva independently tests vaccine vials and finds contaminants that go well beyond those publicly disclosed by the manufacturers. While we have not incorporated their findings into our table, we encourage you to read their research (here).

The table below includes the data from the 2021 Pink Book Appendix B, FDA vaccine inserts for more recent vaccines, color coding to flag certain types of excipients, and additional information that is noted in the references below.

Cell line definitions

MRC-5 is a Diploid cell line made up of fibroblasts isolated from the lung tissue derived from a White, male, 14-week-old embryo.

WI-38 is a Diploid human cell line composed of fibroblasts derived from lung tissue of a 3-month-gestation female fetus.

HEK-293 is a cell line that was isolated from the kidney of a human embryo. It can be used in industrial biotechnology and toxicology research.

RA 27/3 Rubella Attenuated fetal kidney cells developed by Stanley Plotkin in 1964.

Vero cells are a continuous line of cells derived from the kidney of an African green monkey.

Continuous insect cell line (expresSF+®) is derived from Sf9 cells of the fall armyworm, Spodoptera frugiperda (related to moths, caterpillars and butterflies).

Color Key for Excipient Table

The color key was provided by Health Freedom Institute and augmented with information from the Package Insert or Johns Hopkins Vaccine Excipient page

  • Preservative

    Preservatives prevent the growth of bacteria or
    fungus in vaccines.

  • Inactivating Agent

    These chemicals are used to inactivate the toxins and viruses in the vaccine.

  • Antibiotic

    These are used in production to prevent bacterial contamination during manufacturing.

  • Fertilizer Ingredient

    Chemicals used in fertilizers are also found in vaccines. They are used as “stabilizers” and preservatives, and as part of a process to determine effectiveness, to change the acidity level.

  • Aborted Fetal Cells or Human parts

    Cell lines are used to grow vaccines, and it’s possible DNA from the “host” line remains in the final vaccine. Albumin helps vaccines get past mucosal barriers, and can make a vaccine mixture more shelf stable. DNA can also be used to create a specific protein. Urea is used as a stabilizer.

  • Detergent

    Chemicals that prevent viruses from clumping together in solution.

  • Heavy Metal

    Heavy metals are used both as preservatives and to supercharge the activity of a vaccine in your body by stimulating more immune response.

  • Animal or Insect Parts

    These are used as superchargers (adjuvants), stabilizers (to make the vaccine last longer on a shelf), or used to grow viruses for the vaccines.

Notes

(a)-(from the Pink Book) All information was extracted from manufacturers’ package inserts. The date shown in the Date column of the table is the edition date of the PI in use in January 2021 by month and year. In some cases, only a year was printed on the PI. If in doubt about whether a PI has been updated since this table was prepared, check the FDA’s website at: http://www.fda.gov/BiologicsBloodVaccines/Vaccines/ApprovedProducts/ucm093833.htm
(b)-(from the Pink Book) The PI was not dated and this is the date the PI was reviewed for this table.
(c)-(from the Pink Book) All infuenza vaccine in this table are 2021-22 northern hemisphere formulation.

1. The CDC, in the Pink Book Appendix does publish the full list of vaccine ingredients, but it can be difficult to decipher and is sometimes incomplete or not up-to-date. The CDC says on its Excipient List, page 1, “substance used in the manufacturing of a vaccine, but not listed as contained in the final product, can be found on the package insert.” We have used both the Excipient List and Package Insert to compile this chart.

2. The last column reflects the total amount of aluminum a child or adult would get with the recommended dosing series. A typical childhood required schedule with vaccines that contain aluminum (Engerix, Infanrix, Prevnar, Vaqta and Gardasil) would be something like 6,425mcg. With Twinrix replacing the HepA/HepB it comes to 7,025mcg. This does not include a yearly flu shot, some contain aluminum, some dont. 

3. “The AS01E adjuvant component is GSK’s proprietary adjuvant suspension component that contains Monophosphoryl Lipid A (b) (4) (MPL, a chemically detoxified form of the lipopolysaccharide derived from the Gram-negative bacterium Salmonella minnesota (b) (4) ) and QS-21 [a saponin (triterpene glycoside) purified from the bark of the South American tree Quillaja saponaria Molina]. To form AS01E adjuvant, MPL and QS-21 are combined in a liposomal formulation that contains the same ingredients as in AS01B adjuvant, the adjuvant in SHINGRIX, and consists of dioleoyl phosphatidylcholine (DOPC) and cholesterol in phosphate- buffered saline solution. However, AS01E adjuvant contains half the amount of MPL and QS-21 in AS01B adjuvant.”

4. The remnant DNA/Fetal proteins are listed in the Package Insert for this product. Further exploration of this topic can be found below in Sources.

Sources

  1. US Dept. of Health and Human Services - Vaccine Types
    https://www.hhs.gov/immunization/basics/types/index.html
  2. US Food & Drug Administration- Vaccines Licensed for Use in the United States
    https://www.fda.gov/vaccines-blood-biologics/vaccines/vaccines-licensed-use-united-states
  3. CDC Pink Book, Appendix B - Vaccine Excipient Summary(11-2021)
    https://www.cdc.gov/vaccines/pubs/pinkbook/downloads/appendices/B/excipient-table-2.pdf
  4. Institute for Vaccine Safety, Johns Hopkins Bloomberg School of Public Health - Excipients in Routinely Recommended Vaccines
    https://www.vaccinesafety.edu/components-excipients/
  5. –  – Resources on residual DNA
  6. Corvelva Italia, https://www.corveIva.it/speciale-corvelva/vaccinegate-en/5-of-7-vaccines-analyzed-are-not-compliant.html
    https://www.corvelva.it/speciale-corvelva/vaccinegate-en/priorix-tetra-human-genome-and-mrc-5-cell-line-comparative-study.html
  7. Keith Peden Division of Viral Products Office of Vaccines Research and Review CBER, FDA, Issues Associated With Residual Cell-Substrate DNA, Vaccines and Related Biological Products Advisory Committee, November 16, 2005
    http://www.cogforlife.org/FDApowerpointDNA.pdf
  8. Yang H, Establishing acceptable limits of residual DNA, PDA J Pharm Sci Technol. 2013 Mar-Apr;67(2):155-63
    https://www.ncbi.nlm.nih.gov/pubmed/23569076