Loading…
We use essential cookies (authentication, your saved goals/stack) by default. With your permission we’ll also enable privacy-respecting analytics (Vercel Web Analytics, anonymous load-time metrics) and error-replay diagnostics (Sentry — DOM snapshots only when an error fires) so we can fix bugs faster. Learn more about cookies
Head-to-head evidence comparison — which supplement is right for you?
Creatine vs Huperzine A: Creatine has the stronger overall evidence (9.5 vs 6/10); they're alternatives for sharpen focus — the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
Creatine wins 3 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
8 of 10 studies with measurable effects showed benefit.
Top outcomes
Verdict
Too few graded studies
1 of 2 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (1)
Outcomes where both Creatine and Huperzine A have evidence — compare verdict strength side-by-side.
5g daily
Any time, Post-workout may have slight advantage
Monohydrate powder
50-200mcg twice daily
Morning and early afternoon, Avoid evening (may cause vivid dreams)
Huperzine A capsules (standardized extract)
and 1 more not shown
2-4 weeks
1-2 weeks
First week
2-4 weeks
2-4 weeks
30-60 minutes
2-4 weeks
During use
Risk of Adverse Outcomes in Females Taking Oral Creatine Monohydrate: A Systematic Review and Meta-Analysis
Nutrients (2020) · Meta analysis · n=951
Six hundred and fifty-six studies were identified where creatine supplementation was the primary intervention; fifty-eight were female only studies (9%).
International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine
Journal of the International Society of Sports Nutrition (2017) · Systematic review
Increases strength by 5-15%
Effects of Creatine Supplementation and Resistance Training on Muscle Strength Gains in Adults <50 Years of Age: A Systematic Review and Meta-Analysis
Nutrients (2024) · Meta analysis · n=509
In comparison with a placebo, creatine supplementation combined with resistance training significantly increased upper-body (WMD = 4.43 kg, p < 0.001) and lower-body strength (WMD = 11.35 kg, p < 0.001).
The treatment of cognitive dysfunction in dementia: a multiple treatments meta-analysis
Psychopharmacology (2018) · Meta analysis · n=44854
The pooled standardized mean difference of the treatment effects on cognitive dysfunction was 0.439 (95% confidence interval 0.374, 0.504).
Traditional Chinese herbal medicine for vascular dementia
The Cochrane database of systematic reviews (2018) · Systematic review · n=3581
Two TCHMs (NaoMaiTai and TongXinLuo) had a 5% or more increased risk of AEs compared to the 'no Treatment' control, but the quality of this evidence was poor.
Interventions to delay functional decline in people with dementia: a systematic review of systematic reviews
BMJ open (2016) · Systematic review · n=70
The quality of the reviews varied; however most (65%) scored 8/11 or more on the AMSTAR tool, indicating high quality.
The 5 g point is a crossover trial in 123 adults taking 5 g a day for 6 weeks (PMID 37968687): the effect on backward digit span only bordered significance (p = 0.064), reasoning (Raven's matrices) did not change, and side effects were 4.25 times more common than on placebo. The 20 g point is a one-week trial of 5 g four times a day in 32 older adults, where most memory tasks improved (PMID 17828627). A meta-analysis of 10 trials found a small memory benefit (SMD 0.29), mostly in adults aged 66 to 76, with no effect of dose across 2.2 to 20 g a day (PMID 35984306), so the curve is flat. The two trials differ in age and length as well as dose. No minimum or optimal dose is established.
Doses are per day. At 200 mcg (0.1 mg twice daily), a double-blind trial in 78 people with mild to moderate vascular dementia improved MMSE, CDR and daily living scores over 12 weeks (PMID 21833673). At 400 mcg (200 mcg twice daily), the primary analysis of a phase II trial in 210 people with Alzheimer's disease found no effect on ADAS-Cog at 16 weeks, so the curve stays flat rather than rising (PMID 21502597). At 800 mcg (400 mcg twice daily), the same trial found a 2.27-point ADAS-Cog gain at 11 weeks that was no longer significant at 16 weeks. A meta-analysis of four trials using 300 to 500 mcg a day found MMSE and daily living gains (PMID 19221692). The trials are in different populations and only one compared doses, so no minimum, optimal or safe ceiling is set.
AI-estimated from published studies. Interpret as directional guidance.
Creatine has a higher evidence score (9.5/10 vs 6/10) and wins in 3 of 3 categories.
For sharpen focus, Huperzine A has a higher relevance score (80 vs 70).
No documented interaction was found in the data searched. This does not establish that this exact combination is safe.
The honest tier list — proven staples vs situational vs mostly marketing. The hub the other guides feed into.
The most evidence-backed supplement there is — dose, forms, the beyond-muscle case, and the myths.
On Ozempic/Wegovy/Mounjaro? What actually helps — muscle preservation, GI relief, nutrient gaps (no upsell).
Tired? Why most "energy" pills only work if they fix a deficit — and how to find yours first.
The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.