Research on ingredients listed:
Gotu Kola:
https://www.hindawi.com/journals/ecam/2016/2795915/
https://www.mdpi.com/2072-6643/12/5/1372
https://content.iospress.com/articles/journal-of-alzheimers-disease/jad00806
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6885393/
Ginkgo:
https://link.springer.com/article/10.1007/s002130000533
https://pubmed.ncbi.nlm.nih.gov/29507779/
https://www.tandfonline.com/doi/abs/10.1185/03007999109111504
https://pubmed.ncbi.nlm.nih.gov/20731048/
https://pubmed.ncbi.nlm.nih.gov/10807109/
https://europepmc.org/article/med/10178638
https://link.springer.com/chapter/10.1007/978-3-642-73686-5_36
https://onlinelibrary.wiley.com/doi/abs/10.1002/hup.308
Bacopa/Brahmi:
https://pubmed.ncbi.nlm.nih.gov/24252493/
https://pubmed.ncbi.nlm.nih.gov/23772955/
https://pubmed.ncbi.nlm.nih.gov/18611150/
https://pubmed.ncbi.nlm.nih.gov/27473605/