The made by Moderna (Spikevax®) and Pfizer/BioNTech (Comirnaty®) have both been approved for use in Switzerland. The exact compositions of the vaccines are publicly available. Both contain and laboratory-produced . Various lipids are used to encapsulate the mRNA. And several mineral salts and sugars are used to stabilize the vaccine solution. In contrast to most conventional vaccines, they contain no enhancing agents such as adjuvants.