Ingredient: alpha lipoic acid
Alpha lipoic acid in Flow Nerves: no amount printed, what trials tested
Alpha lipoic acid is the second of six ingredients Flow Nerves names, and the seller prints no amount for it. Trials gave about 600 to 1,800 mg a day to people with diagnosed diabetic neuropathy, with mixed results. MSK lists low blood sugar as an adverse effect, so ask a pharmacist if you take insulin or diabetes medicine. No trial tested Flow Nerves.
Written by the Flow Nerves label deskUpdated
On the bottle
What is alpha lipoic acid in Flow Nerves?
Alpha lipoic acid is an antioxidant compound the body makes in small amounts, and Flow Nerves names it second among six ingredients (Flow Nerves seller brief).
The seller prints no milligram amount, and we hold no Supplement Facts panel. The order of names is the seller's, not a ranking by amount. Of the six, this is the one with the most human trials, and those trials were not of this capsule. Flow Nerves is a capsule, not a gummy or a liquid.
| Name as the seller lists it | Alpha Lipoic Acid (named; milligrams not printed) |
|---|---|
| What it is | An antioxidant compound the body makes in small amounts; the seller names it and prints no amount |
| What it is sold for | The most studied of the six for neuropathy |
| Amount printed | amount not printed |
| Amount used in research | A 2023 meta-analysis of 10 trials (1,242 people); NATHAN 1 (460 people, 4 years); a 2004 intravenous meta-analysis; MSK |
| What the studies found | A 2023 meta-analysis of 10 placebo-controlled trials (1,242 people with diabetic sensorimotor polyneuropathy) found oral alpha lipoic acid improved the total symptom score, the neurological disability score and satisfaction, but not pain on a scale, vibration threshold or nerve conduction; the subgroups used 600, 1,200 and 1,800 mg a day. NATHAN 1 gave 600 mg a day by mouth for 4 years to 460 people and did not meet its primary end point, though some secondary scores were better; serious adverse events were 38.1% on ALA versus 28.0% on placebo. The strongest intravenous results (600 mg a day for 3 weeks) used a different route. All of this was in diagnosed diabetic neuropathy, not general nerve discomfort, and none tested Flow Nerves; the amount in the capsule is not printed. |
| Main caution | MSK lists nausea, vomiting and low blood sugar as adverse effects and says people taking diabetes medicine that lowers blood sugar, including insulin, should talk to their provider. It also notes a possible chemotherapy interaction. We read no source on ALA with thyroid medicine or biotin tests. |
What trials tested
Does alpha lipoic acid work for neuropathy?
Results are mixed, and they come only from people already diagnosed with diabetic neuropathy.
A 2023 meta-analysis pooled 10 placebo-controlled trials with 1,242 people who had diabetic sensorimotor polyneuropathy. Oral alpha lipoic acid improved the total symptom score, the neurological disability score and satisfaction. It did not improve the pain scale, vibration threshold, the lower-limb neuropathy score or nerve conduction. The groups took 600, 1,200 or 1,800 mg a day (Hsieh 2023, oral alpha-lipoic acid meta).
NATHAN 1 gave 600 mg a day by mouth to 460 people for 4 years. The primary end point was not met (P = 0.105), though some secondary scores were better. Serious adverse events were 38.1% on alpha lipoic acid and 28.0% on placebo (Ziegler 2011, NATHAN 1 oral alpha-lipoic acid).
A 2004 meta-analysis of 4 trials with 1,258 people used 600 mg a day by infusion for 3 weeks and found a symptom score 24.1% better. An infusion is a different route from a capsule (Ziegler 2004, intravenous alpha-lipoic acid meta). MSK says earlier studies on reversing neuropathies were mixed (MSK, Alpha-lipoic acid).
Label vs studied
How does 600 to 1,800 mg a day compare with Flow Nerves?
It cannot be compared, because Flow Nerves prints no alpha lipoic acid amount, so nobody can say whether it sits near 600 mg or 1,800 mg.
Those doses are gram-scale, and the people studied had a diagnosed condition. Neither fact describes a general reader with tingling feet.
| Item | Amount | Who and how long |
|---|---|---|
| Flow Nerves label | Not printed | Not applicable |
| 2023 meta-analysis, by mouth | 600, 1,200 or 1,800 mg a day | 1,242 people with diabetic neuropathy |
| NATHAN 1, by mouth | 600 mg a day | 460 people, 4 years |
| 2004 meta-analysis, infusion | 600 mg a day | 1,258 people, 3 weeks |
- Alpha lipoic acidlabel amount: not printednot printed
Trials in diagnosed diabetic neuropathy used about 600 to 1,800 mg a day by mouth (2023 meta-analysis; NATHAN 1 used 600 mg for 4 years); Flow Nerves prints no amount. Studies used about 600 mg to 1,800 mg a day. The capsule prints no amount, so there is no label figure to set beside it. (Hsieh 2023, oral alpha-lipoic acid meta) (Ziegler 2011, NATHAN 1 oral alpha-lipoic acid)
- Acetyl-L-carnitine (the form studied)label amount: not printednot printed
Neuropathy trials used acetyl-L-carnitine at 1,500 to 3,000 mg a day; Flow Nerves names L-carnitine, not the acetyl form, and prints no amount. Studies used about 1,500 mg to 3,000 mg a day. The capsule prints no amount, so there is no label figure to set beside it. (Rolim 2019, acetyl-L-carnitine neuropathy (Cochrane))
- Nanocurcumin (the form studied)label amount: not printednot printed
One 16-week trial used 40 mg twice a day of a nano formulation and found no difference; the capsule is a 95% extract with no amount printed. Studies used about 80 mg a day. The capsule prints no amount, so there is no label figure to set beside it. (Mansour 2025, nanocurcumin neuropathy trial)
- Magnesium from supplements (reference level)label amount: not printednot printed
Reference level: NIH's tolerable upper intake from supplements and medicines is 350 mg a day; not a study dose; no amount is printed. A reference level, not a study dose. The capsule prints no amount to set beside it. (NIH ODS, Magnesium)
- Butcher's broom and coenzyme Q10label amount: not printednot printed
The sources we read give no dose for either in a neuropathy trial; we found no trial at an unstated amount. No human trial range found. (EMA, Butcher's broom (Rusci rhizoma)) (MSK, Coenzyme Q10)
Log scale: each gridline is ten times the one before, in milligrams a day. The six ingredients share one proprietary blend with no printed amounts, so no label dot can be drawn. A bar being far away does not mean the product is unsafe or useless; it means the study results cannot be borrowed for it, because none tested Flow Nerves or this six-ingredient blend.
Cautions
Can alpha lipoic acid cause low blood sugar?
Yes, it can. MSK lists nausea, vomiting and low blood sugar as adverse effects (MSK, Alpha-lipoic acid).
MSK says people who take diabetes medicine, insulin included, should talk to their provider. It also says the compound may trigger autoimmune hypoglycemia (insulin autoimmune syndrome) in people predisposed to it, and may antagonize chemotherapy and radiation. For a person on diabetes medicine, that adds a documented risk.
Signs of low blood sugar include feeling shaky, sweaty, very hungry or confused. If you take diabetes medicine, follow your care team's plan and call them. Keep taking prescribed medicine exactly as directed, and never stop or change it because of a supplement. Ask a pharmacist before adding Flow Nerves, and see medicine interactions.
Pregnant or nursing, or under 18: ask a physician first.
Flow Nerves capsule: 30 a bottle1 capsule a day per the seller's FAQ · 2, 3 or 6 bottles · 2 bottles at $79 each · other prices at checkout
See the priceClaims vs evidence
What do the bottle's nerve words have to do with alpha lipoic acid?
The bottle front prints "Nerve Support*", and no trial tested that claim on this capsule.
The trials above tested alpha lipoic acid alone in people with diagnosed diabetic neuropathy. The sales copy speaks of "the nerve endings in your hands, feet, and legs". Tingling or numbness there can come from diabetes, a vitamin B12 shortage, alcohol, some medicines or pressure on a nerve, and a clinician should look for the cause. Flow Nerves is not a treatment for diabetes or its complications. See when to see a clinician and the formula page.
More
Which other Flow Nerves ingredients should you read about?
Each ingredient page asks the same questions about amount, studies and cautions.
Ask for the bottle's Supplement Facts panel before you buy.
FAQ
Alpha lipoic acid questions
How much alpha lipoic acid is in Flow Nerves?
We cannot say. The seller prints no amount, and we hold no Supplement Facts panel. Trials used about 600 to 1,800 mg a day by mouth in people with diagnosed diabetic neuropathy.
Did the 4-year alpha lipoic acid trial succeed?
Not on its main goal. NATHAN 1 gave 600 mg a day to 460 people for 4 years and did not meet its primary end point, though some secondary scores were better.
Can alpha lipoic acid lower blood sugar?
MSK lists low blood sugar as an adverse effect. People on insulin or other diabetes medicine should talk to their provider first. Never change a prescribed medicine because of a supplement.
Is intravenous alpha lipoic acid the same as a capsule?
No. The strongest earlier results used 600 mg a day by infusion for 3 weeks. That route differs from a capsule, and no trial tested Flow Nerves.
Did alpha lipoic acid reduce pain in trials?
In the 2023 meta-analysis of 10 trials, it improved the total symptom score but not the pain scale, vibration threshold or nerve conduction. Those people had diagnosed diabetic neuropathy.
Are there more serious side effects with alpha lipoic acid?
In NATHAN 1, serious adverse events were 38.1% on alpha lipoic acid and 28.0% on placebo. MSK also lists nausea and vomiting. Report any new symptom to your clinician.
Who wrote this
Written and reviewed by
Pages built from the bottle render, the seller's brief and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is the information site of a licensed U.S. retail desk for Flow Nerves. It is not the manufacturer, and we have not been given the name of the maker. We earn money when you buy through our order links.
Keep reading
More about Flow Nerves
Licensed U.S. retail desk for Flow Nerves
Ready to look at Flow Nerves?
Check your medicines first, and ask a clinician or pharmacist if you take blood thinners, diabetes medicine or thyroid hormone. Then pick a pack: 2, 3 or 6 bottles of 30 capsules. The 2-bottle pack is listed at $79 a bottle; the other prices are shown at checkout. A 60-day satisfaction promise is listed, so confirm the live policy.
- Secure checkout on the seller's site
- 60-day satisfaction promise, per the seller
- Shipping shown at checkout
