Focus tier list
60 supplements and medications people take for attention, concentration, productivity, sorted by 8,271 first-hand reports. The tier is how many people say it helped, adjusted for sample size — S-tier means at least 80% even in the worst case the data allows. Only entries with 30+ reports for focus.
S
Very likely to help
Magnesium L-Threonate97%of 109Fasoracetam98%of 59Phenylpiracetam93%of 346Creatine93%of 249Pramiracetam95%of 91Nicotine92%of 244Green Tea Extract95%of 55ALCAR91%of 155L-Theanine88%of 501Oxiracetam90%of 148Alpha-Gpc89%of 199Lion's Mane88%of 234Modafinil86%of 689Sabroxy90%of 83Caffeine + L-Theanine91%of 66Lisdexamfetamine87%of 200Uridine92%of 53Citicoline89%of 103Noopept85%of 440Amphetamine85%of 428Tyrosine85%of 294
A
Likely to help
Caffeine83%of 568Bromantane89%of 70Aniracetam85%of 200Omega-385%of 172DMAE93%of 30Methylphenidate83%of 262Armodafinil87%of 76Choline88%of 56Adderall Xr90%of 40Nicotine Patch91%of 34Rhodiola85%of 102Sulbutiamine89%of 46Coffee86%of 80Piracetam80%of 458Huperzine a88%of 48Dextroamphetamine88%of 48Bacopa84%of 107Adrafinil83%of 100NAC81%of 170Ginkgo Biloba84%of 61Vitamin D83%of 60Cognance87%of 30
B
C
D
Usually doesn't help — some make it worse
Peptides and SARMs are not included in tier lists. Information only — not medical advice. How tiers are calculated