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Dimethylaminoethanol
A choline-related compound marketed for focus, memory, and 'skin firming.' The human data are old, sparse, and mixed: cognition trials are small, confounded combination products, and the best skin data come from short industry-run cosmetic studies measuring surrogate firmness, not aging outcomes.
What the evidence says
Most DMAE studies are mechanism or observational rather than RCTs that measure a clinical effect — keep findings provisional.
Most evidence is from high-quality meta-analyses and randomised trials published 1977–2022 with a typical study size of 60 participants.
Based on 16 studies · 3 meta-analyses · 11 RCTs · 60 total participants
Confidence
High confidenceBy outcome
Scores 2.5/Emerging because cognition data come from small or confounded combination-product studies using EEG/scopolamine surrogates, and skin benefits rest on short, industry-authored cosmetic trials measuring surrogate firmness, not real outcomes.
16 rigorous studies
10 randomized trials · 3 meta-analyses · 6 systematic reviews
Our evidence rating for DMAE is accountable to this entire body of rigorous research indexed in PubMed — not a hand-picked subset.
PubMed · as of Jul 2026
No trials currently enrolling · 2 completed on ClinicalTrials.gov
Registered trials show research momentum for DMAE, not proof of effect — a registration is a plan, and posted results are sponsor-reported, not peer-reviewed. They are never counted toward the evidence rating above.
Browse these trials on ClinicalTrials.govClinicalTrials.gov · as of Sep 2026
DMAE (dimethylaminoethanol, or deanol) is an analog of choline and a putative precursor in acetylcholine-related pathways, which underlies its marketing for focus, memory, and mood, and — as a topical — for skin firmness.
The cognitive evidence is thin and dated: many 'positive' studies tested DMAE inside multi-ingredient vitamin/mineral formulations (making the DMAE contribution impossible to isolate), used EEG or scopolamine-challenge surrogates rather than real-world cognition, or were small.
The dermatology evidence rests largely on short, industry-authored cosmetic trials showing increased skin 'firmness' or tensile strength — surrogate biophysical measures over weeks, not demonstrated reversal of skin aging.
There is no strong, independent, long-term human trial establishing meaningful cognitive or anti-aging benefit. We score it low — emerging.
An analog of choline proposed to support acetylcholine-related signaling; the precursor role in humans is debated and the cognitive payoff is unproven.
Skin expresses acetylcholine receptors; DMAE is proposed to firm skin via acetylcholine-mediated effects and a mild anti-inflammatory action — mechanism not fully established.
How DMAE works — from molecular targets to health outcomes. Click an edge to see supporting research.This visualization is in beta — pathways are being refined and expanded.
Avoid — related aminoalcohols have raised developmental-safety concerns and human safety data are lacking.
Use caution given DMAE's cholinergic activity.
As a compound related to acetylcholine signaling, DMAE could theoretically add to or oppose cholinergic and anticholinergic medications.
Tip: Lower the dose or discontinue
Tip: Discontinue if irritation occurs
The current evidence for DMAE is insufficient to assign an evidence score, based on 7 indexed studies. A choline-related compound marketed for focus, memory, and 'skin firming.' The human data are old, sparse, and mixed: cognition trials are small, confounded combination products, and the best skin data come from short industry-run cosmetic studies measuring surrogate firmness, not aging outcomes. Representative study: PMID 12236885.
The commonly studied dose of DMAE is Oral: commonly 100-300mg daily (no validated efficacy dose). Topical: 3% gel in the cosmetic trials.. Individual needs vary — start at the lower end of the range and adjust based on how you respond.
The best time to take DMAE is in the morning. Take it with food. Taken in the morning as it is marketed as stimulating/focus-promoting; no trial-validated dose or timing for oral use.
DMAE is generally safe at recommended doses, with a few precautions worth noting. Reported side effects are uncommon and include headache, insomnia, muscle tension/twitching, irritability (oral, dose-related), mild skin irritation (topical). Use caution if any of these apply to you: Pregnancy/breastfeeding (avoid — older reports of developmental concern with related compounds); Bipolar disorder / seizure disorders (precautionary, given cholinergic activity).
Caffeine
Likely helpsBlocks adenosine receptors to boost alertness, reaction time, and endurance — one of the most proven ergogenic aids.
Alpha-GPC
Likely helpsCrosses the blood-brain barrier to fuel acetylcholine synthesis — supports focus, memory, and power output in athletes.
Citicoline
Probably helpsDual precursor to acetylcholine and phosphatidylcholine — enhances memory, focus, and brain cell membrane repair.
Collagen
Likely helpsHydrolyzed peptides that rebuild skin elasticity, reduce joint pain, and strengthen bone density — results build over 8-12 weeks.
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Reviewed by Dr. Baher Al Hakim · Last reviewed June 2026 · evidence from 16 studies · how we score · editorial policy
This information is for educational purposes only. It is not a substitute for professional medical advice. Always consult a qualified healthcare provider before starting, stopping, or changing any supplement or medication.
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