D-Serine
People mainly take D-Serine for focus. Based on 5 first-hand reports. Ranked #1572 of 2,750 overall.
14
User score
Mostly positive20% positive0% mixed0% negative80% unclear
Of reports that state an outcome, 100% are positive.
Clinical research
Research pending
What D-Serine does, according to users
Of the people who reported each effect, the share who said it got better.
betterno changeworse
What the research says
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
Research data for D-Serine is being compiled.
Dosage people report
As stated by users — not a recommendation. Follow the label or your doctor.
3 gas reported
Reported side effects
How often each side effect came up across all reports.
No side effects reported so far.
What users say
Verbatim quotes, shortened only — each links to the original discussion.
“D-serine increases glutamate activation, which is bad in a sensitive brain that has recently undergone insult.”
“Definitely learn about keto-diets and D-serine.”
“Try NMDA agonists like D-Serine (Prototype Nutrition) and/or Sarcosine”
“the fertility enhancement and cognitive enhancement claims have not been debunked”
“D-serine for me 3 grams provides a unique mental clarity.”
Top discussions (5)
- NMDA dysregulation and excitotoxicity from chronic NMDA/AMPA antagonist use? I'm 20 and effectively brain dead. Is there anything I can do? ↗
- Stack for major depression (w/ schizo symptoms), mood instability, chronic fatigue, Asperger's, PTSD, ADHD, OCD, anxiety, and drug-induced psychosis? ↗
- Nerve damage from high B6. Want to begin nerve healing and protect myself. ↗
- D-aspartic acid study on human body composition ↗
- Supplements that help clarity of thought ↗
Other options for focus
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83% report better focus
Mostly positiveBResearch: Moderate
Caffeine + L-Theanine
Supplement · 90 reports
94% report better focus
Mostly positive
Testosterone Cypionate
Medication · 42 reports
100% report better focus
Mostly positiveBResearch: Moderate
Tirzepatide
Medication · 405 reports
67% report better focus
Mostly positiveAResearch: Strong
Exercise
Lifestyle · 729 reports
95% report better focus
Mostly positive
Intermittent Fasting
Lifestyle · 255 reports
92% report better focus
Mostly positive
User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 3, 2026. How we rate