Ingredient research

Alpha-Lipoic Acid: What the Research Shows About Nerves, Dose and Safety

Quick answer

The clearest alpha-lipoic acid results came from 600 mg a day given by IV drip for 3 weeks. A 2012 meta-analysis found the benefit of pills unclear, and every trial in it was funded by an ALA maker. LiverTox says it was not shown to improve neuropathy. Neuralisse holds at most 287 mg by label math.

Written by the Neuralisse editorial teamUpdated October 11, 2026 · 9 min read

Neuralisse Supplement Facts panel listing alpha lipoic acid second in a 575 mg proprietary blend — Alpha lipoic acid sits second in the 575 mg blend. The panel prints no amount for it, so 287 mg is the most it could be.

Basics

What is alpha-lipoic acid?

Alpha-lipoic acid (ALA) is a compound your body makes in small amounts. It helps cells turn food into energy, and it works as an antioxidant.

It is also called thioctic acid. LiverTox notes it is not FDA-approved for any condition (LiverTox, Alpha lipoic acid).

Researchers have tested for decades whether it can ease burning, tingling and numbness in people with diabetes. The answer depends a lot on how the ALA was given.

Numbness, tingling or burning in the feet can be a sign of diabetes or another condition. About one-third to one-half of people with diabetes have nerve damage in the hands or feet, says the NIDDK (NIDDK, Diabetic neuropathy). A doctor should check these symptoms before anyone reaches for a supplement.

The key difference

Does IV alpha-lipoic acid work better than pills?

In the research, yes: the IV route gave the clearest result. A 2012 meta-analysis pooled four trials and found that 600 mg a day by IV drip for 3 weeks reduced nerve pain scores. For capsules taken by mouth, the authors said the benefit was unclear (Mijnhout et al., 2012).

An IV drip sends the full dose straight into the blood. A capsule must pass through the gut and liver first. Most people buying a supplement will only ever take the pill form.

Alpha-lipoic acid: what the four-trial meta-analysis found, by route (Mijnhout et al., 2012)
Route	Dose studied	How long	What it found
IV drip	600 mg a day	3 weeks	Nerve pain scores fell more than with placebo
Oral (pills)	600 mg a day and higher	Longer courses	Benefit unclear
Neuralisse capsule	At most 287 mg (label math)	1 capsule a day	Not studied

Dose

Why is 600 mg the number everyone quotes?

600 mg a day is the dose used in the best-known trials. LiverTox lists usual doses of 100 to 600 mg, taken once or twice a day (LiverTox, Alpha lipoic acid). So 600 mg is at the top of the common range, not the bottom.

When a product says it contains "alpha-lipoic acid," the dose matters. A small amount is not the same as the amount researchers tested. Look for the milligrams on the label. If the label hides them, ask why.

Funding

Who funded the alpha-lipoic acid trials?

Every trial in the 2012 meta-analysis was funded by a company that makes alpha-lipoic acid (Mijnhout et al., 2012). The authors said so plainly. That does not make the results false. It does mean the evidence would be stronger if independent groups repeated it.

Why it still matters to you:

Funders can shape which questions get asked and which outcomes get measured.

A fair reading: ALA has a real signal in IV form, from a small, industry-paid body of work. That is a reason for interest, not a reason for certainty.

Government sources

What do LiverTox and NCCIH say about alpha-lipoic acid?

LiverTox says ALA, in clinical trials, was not shown to improve the symptoms or progression of neuropathy (LiverTox, Alpha lipoic acid). It also calls ALA an unlikely cause of liver injury, which is good news on safety.

The National Center for Complementary and Integrative Health (NCCIH) uses careful words. It says alpha-lipoic acid "might be helpful" for diabetic nerve problems (NCCIH, Diabetes and supplements). In the same advice, NCCIH warns never to replace proven diabetes care with an unproven product. It also notes that people with kidney disease need closer monitoring.

Reading the two together

LiverTox looks hardest at the pill trials and finds no clear benefit. NCCIH leaves the door open. Both agree ALA is not a treatment, and both point you back to your diabetes team.

Memorial Sloan Kettering Cancer Center (MSKCC) sums up the nerve research as mixed (MSKCC, Alpha-lipoic acid).

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Safety

Is alpha-lipoic acid safe to take every day?

For most adults, ALA at usual doses has a fair safety record. The main known side effects are nausea and low blood sugar, according to MSKCC (MSKCC, Alpha-lipoic acid).

If you take diabetes medicine

ALA can lower blood sugar and may add to the effect of insulin or diabetes pills. MSKCC also lists a rare reaction called insulin autoimmune syndrome, which causes sudden low sugar. Talk with your doctor, and watch your readings closely if you start.

Supplements can also interact with medicines you already take, and "natural" is not the same as safe, the NIH Office of Dietary Supplements says (ODS, What you need to know). Bring the bottle to your next appointment so your pharmacist can read the full list.

Neuralisse

How much alpha-lipoic acid is in Neuralisse?

The label does not say. Alpha lipoic acid is the second ingredient in a 575 mg proprietary blend, and only magnesium gets its own amount.

FDA rules list blend ingredients from most to least by weight (FDA, Labeling guide). So the second ingredient can weigh at most half the blend: 575 divided by 2, or about 287 mg. That is a ceiling, not the real amount. The real figure is probably lower, because magnesium glycinate comes first and must supply 80 mg of magnesium on its own.

Even at its ceiling, the capsule holds under half of the 600 mg trial dose. And it is a pill, the form with unclear results. See the full breakdown on our alpha-lipoic acid ingredient page and the Supplement Facts page.

In fairness, Neuralisse does not claim to treat neuropathy. The label calls it a "Nerve Support Formula" for nerve health and comfort support, marked with the FDA asterisk. It is one capsule a day, and it prints the full ingredient list.

The brand graphic shows the capsule format and label tiles, but no ingredient amounts.

Magnesium
19%

Label80 mg (printed)

Studied420 mg Daily Value

(FDA, Daily Values)
Alpha-lipoic acid
48%

Labelat most 287 mg

Studied600 mg a day in trials

(Mijnhout et al., 2012)
L-carnitine
14%

Labelat most 143 mg

Studied1-2 g a day in trials

(ODS, Carnitine (HP))
Coenzyme Q10
32%

Labelat most 95 mg

Studied300-1,200 mg typical dose

(LiverTox, CoQ10)
Turmeric extract
100%+

Labelat most 115 mg

Studied100 to over 1,000 mg a day

(LiverTox, Turmeric)

Each "Label" bar is drawn to scale against the low end of the research dose (for magnesium, the 420 mg Daily Value). For blend ingredients we use the label-math ceiling, the most each one could weigh; the real amounts are probably lower. Studies tested each ingredient alone, not Neuralisse.

Before you buy

What should you ask before trying an alpha-lipoic acid product?

Start with your doctor or pharmacist, then check the label.

Get your symptoms checked
Nerve symptoms have more than 100 possible types and many causes (NINDS, Peripheral neuropathy). The cause decides the care.
Find the milligrams
Compare the amount to the 600 mg used in trials. If a blend hides it, work out the ceiling.
Check your medicines
Ask about insulin and diabetes pills first. Read our guide to nerve supplements and diabetes medicines.

Bottom line

So, does alpha-lipoic acid work?

IV doses of 600 mg a day helped nerve pain for a few weeks. Pills are less clear, and ALA can lower blood sugar. Neuralisse holds at most 287 mg, below the dose studied.

FAQ

Alpha-lipoic acid questions people ask

Is alpha-lipoic acid good for nerve pain?

The evidence is mixed. A 2012 meta-analysis found that 600 mg a day by IV for 3 weeks reduced nerve pain in people with diabetes, but the benefit of pills was unclear. LiverTox says trials did not show it improves neuropathy symptoms or progression.

How much alpha-lipoic acid should I take a day?

Usual doses run from 100 to 600 mg, once or twice a day, according to LiverTox. The best-known trials used 600 mg a day. Ask your doctor before choosing a dose, especially if you take diabetes medicine, because ALA can lower blood sugar.

Is oral alpha-lipoic acid as good as IV?

Not on current evidence. The clearest results came from IV drips of 600 mg a day for 3 weeks. When researchers pooled the trials, the benefit of oral capsules was unclear. A pill has to pass through the gut and liver before it reaches the blood.

Can alpha-lipoic acid lower blood sugar too much?

It can. MSKCC lists low blood sugar as a side effect and warns that ALA may add to the effect of diabetes drugs. A rare reaction called insulin autoimmune syndrome has also been reported. Check your readings more often and tell your doctor if you start it.

Is alpha-lipoic acid bad for your liver?

LiverTox calls alpha-lipoic acid an unlikely cause of liver injury. That makes it one of the gentler supplements for the liver. Still, tell your doctor about it, especially if you already have liver disease or take several medicines.

How much alpha-lipoic acid is in Neuralisse?

The label does not print an amount. Alpha lipoic acid is second in a 575 mg blend, so by FDA weight-order rules it holds at most about 287 mg. The real amount is likely lower, because magnesium glycinate comes first.

Who wrote this

Written and reviewed by

Written byThe Neuralisse editorial teamNeuraelisse, American Neuralisse outlet

Plain-language pages built from the bottle label, the order page and linked public health sources such as NIH, FDA and CDC.

Medically reviewed byDr. Edgar Martorell, MD, PhysicianRole: Medical reviewerReview date: October 12, 2026

Last updated October 11, 2026. Read our editorial standards and how we check reviews. This website is run by an American stocking outlet for Neuralisse, not by the manufacturer. We earn money when you buy through our order links.

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