Deanol.
Research-backed compound with potential health benefits. The theory: it's a building block for acetylcholine, a brain chemical for memory and attention. The reality: solid evidence that it boosts brain function in healthy people is weak.
Reviewed March 2026
- Category
- Compound
What Deanol is, and what it does.
- Does it work
- No. The hype outpaces the evidence on this one. There are better-studied options for focus and memory.
- How much to take
- Most products offer 100-300mg of DMAE bitartrate daily. Starting low is smart to see how you react.
- Time to feel it
- Weeks rather than days. What moved in trials showed up on attention and mood rating scales rather than as a sensation you can point to on any given afternoon.
- The first dose
- Nothing. Seriously. If you feel anything, it's not the Deanol. This isn't a stimulant.
- With regular use
- After a month, you might notice subtle changes in focus or mood, but it's just as likely you'll notice nothing. The effects are not dramatic.
- How well tolerated
- Well tolerated in most. High doses can bring on muscle tension and irritability.
- How it feels
- Subtle to non-existent. Some people report vivid dreams. Others get a tight jaw. It's a coin flip.
- The overlooked benefit
- It sits one methyl group short of choline, and adding that group uses the same methyl pool as folate and B12, so it draws quietly on your methylation budget.
100 to 300mg a day is where Deanol works.
Source: Casey et al., Clinical Pharmacology & Therapeutics, 1977
The proof, claim by claim.
These words describe the research, not the molecule's worth. Research strength is how much work stands behind one claim, and it is never a product score.
Deanol is documented in the library; the clinical read is in the queue. Nothing about the strength of the research prints until the read is done.
- Attention and behaviour ratingsRandomised trial
- Everyday mood and wellbeing in older adultsRandomised trial
- Skin firmness when applied topicallyRandomised trial
- Contribution to the choline and acetylcholine pathwayNarrative review
- Incorporation into membrane phospholipidsAnimal study
Questions people ask about Deanol.
- Is Deanol the same as DMAA?
- No. Absolutely not. DMAA is a powerful, banned stimulant. Deanol (DMAE) is a mild cognitive compound. Huge difference.
- Will this make me smarter?
- Unlikely. The evidence for significant cognitive enhancement in healthy people just isn't there.
- Is it better than Choline?
- Different, but probably not better. Choline sources like Alpha-GPC or Citicoline have more robust, modern research behind them.
- Does it help with skin?
- Some topical creams use it for skin firming, with temporary effects. Taking it orally for your skin? The jury is out.
- When should I take it?
- Morning is best. Taking it late in the day might interfere with sleep for some people.
Why these belong in the same formula. Each row says what the basis is, from settled biochemistry through to a trial that measured the pair.
DMAE is dimethylaminoethanol, choline with one fewer methyl group, and it competes with choline at the same membrane transporters. High DMAE can displace choline uptake rather than add to it, so this is a competition to note, not a simple stack.
Centrophenoxine is the ester of DMAE with a phenoxyacetic acid and releases DMAE after hydrolysis. Taking both delivers the same active amine by two routes, so the combined dose should be counted once.
Acetylcholine synthesis needs acetyl-CoA as well as a choline-type substrate, and coenzyme A is built from pantothenate. Formulas pair DMAE with pantothenate so the acetyl side of that reaction is not the limit.
DMAE is incorporated into phospholipids as phosphatidyl-dimethylaminoethanol, which sits in the same membrane pool as phosphatidylcholine and can be methylated onward to it. Supplying phosphatidylcholine keeps that pool from shifting toward the under-methylated form.
Converting dimethylaminoethanol onward toward choline requires methyl groups from the SAM pool. Betaine as a methyl donor supports the methylation capacity that step draws on.
Alpha-GPC delivers choline directly whereas DMAE arrives as the demethylated analogue that competes for the same transport. Stacking them means the transport route is shared, so the combined amount is one cholinergic load.
Racetams raise cholinergic turnover and a choline-type substrate is paired with them to meet that demand. DMAE was the substrate used for that role in older formulations.
Huperzine A slows acetylcholinesterase while DMAE feeds the cholinergic substrate pool. One side supplies and the other slows removal at the synapse.
Converting dimethylaminoethanol to choline requires adding a third methyl group to the nitrogen, and S-adenosylmethionine is the methyl donor for that class of reaction. SAM-e availability is therefore part of what determines whether the conversion can proceed. The biochemistry is settled; no human trial has measured the pair together.
5-methyltetrahydrofolate donates its methyl group to homocysteine to regenerate methionine, which is then activated to SAM-e. Any methylation demand, including N-methylation of an aminoethanol, draws on that cycle. This is pathway biochemistry rather than a measured combination effect.
Methionine synthase needs methylcobalamin to move the methyl group from folate onto homocysteine, the step that keeps the SAM-e pool refilled. Without adequate B12 the folate-dependent arm of methyl supply stalls regardless of folate intake. Established cofactor pharmacology, stated as such.
Methionine is adenosylated by MAT to form S-adenosylmethionine, the universal methyl donor. Sustained methylation demand draws on the methionine pool. The connection is upstream substrate supply, not a demonstrated benefit of taking the two together.
Phosphatidylserine is decarboxylated to phosphatidylethanolamine, which is then methylated three times by PEMT to give phosphatidylcholine, the same methylation route that handles the dimethyl intermediate. The two compounds enter the same membrane phospholipid pool at nearby points. Both appear in cognition-support formulas on that shared rationale.
Acetylcholine synthesis needs both a choline moiety and an acetyl group carried by acetyl-CoA, and acetyl-L-carnitine can donate acetyl units through carnitine acetyltransferase. Formulas pair the two to supply each half of that reaction. The rationale is mechanistic; human evidence for the combination is thin.
Lion's mane is used for its hericenone and erinacine content with small human trials on cognitive task measures, and DMAE appears in the same category of products. The proposed routes do not overlap. Read the pairing as formulation convention.
Bacopa has human trials measuring memory task performance over several weeks and is often stacked with cholinergic precursors including DMAE. There is no combination trial. The pairing is category convention rather than a measured interaction.
Tyrosine is hydroxylated to L-DOPA and decarboxylated onward to dopamine and noradrenaline, a separate neurotransmitter system from the cholinergic one DMAE is formulated around. Products combine them to cover both. The routes are independent and untested together.
Ginkgo extracts appear alongside DMAE in older nootropic formulas. Ginkgo carries a documented antiplatelet signal, so anyone on anticoagulant or antiplatelet medication should raise the combination with a clinician; that caution comes from ginkgo alone. No combination study exists.
Inositol becomes the head group of phosphatidylinositol, part of the same membrane phospholipid family that phosphatidylcholine and its dimethyl analogue belong to. Both are incorporated through CDP-activated head-group chemistry. The shared chemistry is real; the combination has not been studied.
Nothing specific on file for Deanol. Match the label to the daily amount above, and tell your doctor what you take.
Not medical advice. Show the label to your pharmacist.What Deanol actually does.
Deanol is 2-dimethylaminoethanol, the immediate N-demethylated analogue of choline: identical apart from carrying two methyl groups on the nitrogen instead of three.
Adding the third methyl group converts dimethylaminoethanol to choline. That N-methylation uses S-adenosylmethionine as the methyl donor and therefore draws on the folate, B12 and methionine one-carbon cycle.
Acetylcholine synthesis requires free choline, which choline acetyltransferase joins to an acetyl group from acetyl-CoA. Deanol is not itself a substrate for that enzyme; any contribution runs through its conversion to choline first.
As a tertiary amine, deanol is a weak base and is supplied as an acid addition salt for stability; the free base is a hygroscopic liquid, which is why powdered products use a salt form.
Where Deanol comes from.
It is built in a chemical plant from two simple industrial materials rather than pulled out of a plant or a fish. The liquid that comes out is distilled clean, then combined with tartaric acid, the same acid found in grapes, so it turns into a dry powder that keeps well in a capsule.
Chemically synthesised. The molecule is identical to the one a plant or an animal makes, and building it deliberately means a known purity, a fixed dose and no crop contaminants. For several nutrients this is the only route that reaches a usable amount.
Both are bulk petrochemical intermediates. Nothing in the finished molecule traces back to a plant or animal source.
Dimethylamine reacts with ethylene oxide, the amine nitrogen opening the epoxide ring to give 2-dimethylaminoethanol directly. Controlling the ratio limits the formation of higher ethoxylated by-products.
The crude amino alcohol is distilled to separate it from unreacted amine, water and higher ethoxylates. Purity is set at this step, since the salt formation that follows does not remove organic impurities well.
The distilled free base is reacted with L-tartaric acid in solution to give DMAE bitartrate, converting a hygroscopic liquid into a handleable crystalline solid.
The salt is crystallised, filtered, dried and milled to a specified particle size for blending, then tested for identity, assay, residual solvents and heavy metals.
Getting Deanol from food.
The whole-food sources on file. A supplement closes the gap, it does not replace dinner.
A gram-for-gram figure (how much of each you would eat to match a dose) will appear here once it is sourced and reviewed. This page will not print a number it cannot cite.
The forms it comes in.
The essence, in one line each.
- A review of compounds used for cognitive support describes deanol (dimethylaminoethanol) among them, setting out the doses reported in the literature and the side effects recorded with their use.Narrative review. Malík et al., 2022 (Nutrients). PMID 36014874 ↗
These are the studies our verdict leans on, chosen from the 15 we read for Deanol. The full linked list is below.
Problems people have reported.
Read this carefully. These are 362 voluntary, unverified reactions reported to the FDA (openFDA). The number mostly reflects how popular Deanol is, not how risky it is. A report is not proof Deanol caused anything. It is a signal of what to watch for, nothing more.
Source: openFDA adverse-event reports. Voluntary reporting, not an incidence rate.
FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare provider before starting any supplement regimen.