Graphene may be part of the lipid formula if it even exists in the formula.
Not mentioned either on (say)
CAS
https://www.cas.org/resource/blog/understanding-nanotechnology-covid-19-vaccines
or CT state site https://portal.ct.gov/Coronavirus/Covid-19-Knowledge-Base/Vaccine-Ingredients
or IN state site https://faqs.in.gov/hc/en-us/articles/360053861492-What-ingredients-are-in-the-COVID-19-vaccines-
or UC Health (Cincinnati) https://www.uchealth.com/en/media-room/covid-19/a-comprehensive-list-of-all-covid-19-vaccine-ingredients although some Indian ("dot not feather") groups have looked into graphene and/or graphene oxide as an antiviral for the coof. https://www.news-medical.net/news/20210520/Could-graphene-oxide-nanosheets-be-an-effective-SARS-CoV-2-antiviral-in-PPE.aspx
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7577689/
and the U of Illinois Chicago has used graphene to *detect* the coof: https://phys.org/news/2021-06-graphene-covid-quickly-accurately.html