It's Just! - Creatine Monohydrate Powder, Pure Creatine Powder, Made in USA, 3rd Party Lab Tested, 5g Per Serving, Scoop Included, No Fillers, No Added Flavor (Unflavored, 500g / 100 Servings)

People usually use it because it helps you workout or something, but it also does something with ATP in the brain and I just find it does magic for exhausion and brain fog. It's incredibly well studied -- in general, not as much for sleep deprivation though there's some studies: https://www.nature.com/articles/s41598-024-54249-9 https://www.mdpi.com/2072-6643/18/8/1192 https://pubmed.ncbi.nlm.nih.gov/16416332/ I use this onehttps://www.amazon.com/dp/B0CCCNKD73?ref=nb_sb_ss_w_as-reorder_k0_1_8&=&crid=2ZDN13G9N7BMW&sprefix=creatine&th=1