Pfizer one does contain 4 kinds of lipids to encase the RNA. The encapsulation percentage is however unknown. https://www.technologyreview.com/2020/12/09/10135

Pfizer one does contain 4 kinds of lipids to encase the RNA. The encapsulation percentage is however unknown. https://www.technologyreview.com/2020/12/09/1013538/what-are-the-ingredients-of-pfizers-covid-19-vaccine/ https://www.technologyreview.com/2020/12/09/1013538/what-are...