ones who are Doctors yes and since the tweet you posted referred to them thay seems fair
here us Pfizer
6. Contents of the pack and other information
What COVID-19 mRNA Vaccine BNT162b2 contains:
- The active substance is BNT162b2 RNA.
After dilution, the vial contains 6 doses, of 0.3 mL with 30 micrograms mRNA each.
- This vaccine contains polyethylene glycol/macrogol (PEG) as part of ALC-0159
The other ingredients are:
- ALC-0315 = (4-hydroxybutyl)azanediyl)bis(hexane-6,1-diyl)bis(2-hexyldecanoate)
- ALC-0159 = 2[(polyethylene glycol)-2000]-N,N-ditetradecylacetamide
- 1,2-Distearoyl-sn-glycero-3-phosphocholine
- cholesterol
- potassium chloride
- potassium dihydrogen phosphate
- sodium chloride
- disodium hydrogen phosphate dihydrate
- sucrose
- water for injections