Alpha-Lipoic Acid for Oxidative Stress & Neuroinflammation
C Some Evidence Limited evidence from small studies, but some positive signals exist.A universal antioxidant that regenerates vitamins C, E, and glutathione. Metal chelation reduces oxidative neuronal damage. Shows significant synergistic neuroprotective effects when combined with ALCAR.
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C
The Bottom Line
A universal antioxidant that regenerates vitamins C, E, and glutathione. Metal chelation reduces oxidative neuronal damage. Shows significant synergistic neuroprotective effects when combined with ALCAR.
Key Study Findings
In Vitro
Evaluation of the neuroprotective effects of alpha lipoic acid-loaded folate-conjugated chitosan nanoparticles against 6-OHDA-induced apoptosis …
Dose: None
vs: free alpha-lipoic acid
Outcome: neuroprotective efficacy against 6-OHDA-induced neurotoxicity
Effect: None
None
Population: SH-SY5Y neuroblastoma cells with 6-OHDA-induced neurotoxicity (in vitro PD model)
Other
8 weeks
α-Lipoic acid mitigates age-related cognitive decline by modulating PPARγ/NF-κB-mediated neuroinflammation.
Dose: 100 mg/kg/day
vs: untreated aged mice; D-galactose-induced senescent BV2 cells
Outcome: cognitive function (T maze behavioral tests)
Effect: None
None
Population: 18-month-old naturally aged C57BL/6 mice
Other
Efficacy of alpha-lipoic acid in mitigating neuropathic pain: mechanistic insights and therapeutic implications.
Dose: 50, 100, and 200 mg/kg
vs: sham-operated controls
Outcome: mechanical and thermal hyperalgesia
Effect: None
None
Population: mice with spinal nerve ligation-induced neuropathic pain
Other
Executive Summary of the Vulvodynia Therapeutic Research Summit.
Dose: None
vs: None
Outcome: None
Effect: None
None
Population: expert consensus on therapeutics for provoked vestibulodynia
Other
α-lipoic acid nanoparticles functionalized with RVG29 peptide attenuate seizure-induced neurotoxicity by restoring mitochondrial homeostasis via …
Dose: None
vs: free alpha-lipoic acid and non-targeted nanoparticles
Outcome: seizure-induced neurotoxicity and mitochondrial homeostasis
Effect: None
None
Population: in vitro and in vivo epilepsy models
Controlled Clinical Trial
n=24
4 weeks
Neuroprotective Effects of Alpha-Lipoic Acid Against Behavioral Toxicity, Oxidative and Inflammatory Damage Caused by Titanium …
Dose: ALA 50 mg/kg orally; TiO2-NPs 150 mg/kg i.p.
vs: negative control, TiO2-NPs alone, ALA alone
Outcome: neurobehavioral performance and neurodegeneration markers
Effect: None
None
Population: male Sprague-Dawley rats
Key Statistics
8
Studies
500
Participants
↑
Positive
C
Grade
Referenced Papers
Biological trace element …
2026
2 citations
Free radical biology …
2026
BMC neuroscience
2026
Experimental gerontology
2026
Inflammopharmacology
2026
Obstetrics and gynecology
2026
Nutrients
2025
9 citations
Journal of stroke …
2025
4 citations
Journal of neurotrauma
2025
Brain sciences
2025
Scientific reports
2025
Neurocritical care
2025
Environmental research
2024
33 citations
Frontiers in nutrition
2024
9 citations
Behavioural brain research
2024
8 citations
Physiology & behavior
2024
3 citations
Neuroreport
2024
3 citations
Neurochemical research
2023
15 citations
International immunopharmacology
2023
9 citations
Memory Recovery Effect of a New Bioactive Innovative Combination in Rats with Experimental Dementia.
Other
Antioxidants (Basel, Switzerland)
2023
5 citations
Metabolic brain disease
2023
4 citations
Neuroscience letters
2023
4 citations
Antioxidants (Basel, Switzerland)
2022
22 citations
Toxicology mechanisms and …
2022
16 citations
Neuroscience letters
2022
16 citations
IBRO neuroscience reports
2022
11 citations
Journal of inflammation …
2022
9 citations
The journal of …
2021
41 citations
Metabolic brain disease
2021
24 citations
Brain, behavior, and …
2020
58 citations
Molecular neurobiology
2020
12 citations
BMB reports
2019
29 citations
Cellular physiology and …
2018
29 citations
Cellular physiology and …
2018
27 citations
Neurochemistry international
2017
53 citations
Neurotoxicity research
2017
Neurochemistry international
2016
153 citations
International journal of …
2016
29 citations
Molecular neurobiology
2016
7 citations
Minerva ginecologica
2015
International journal of …
2013
29 citations
Evidence-based complementary and …
2011
23 citations
Nutritional and exercise-based interventions in the treatment of amyotrophic lateral sclerosis.
Review
Clinical nutrition (Edinburgh, …
2009
52 citations
Dosage & Usage
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units
Commonly Used Dosages
- general:
- 300-600 mg/day
- cognitivesupport:
- 600-1,200 mg/day (R-ALA preferred)
Upper limit: 2,400 mg/day (highest dose in clinical trials)
Dosages Studied in Research
| Dosage | Duration | Effect | N |
|---|---|---|---|
| None | -- | Positive | -- |
| 100 mg/kg/day | 8 weeks | Positive | -- |
| 50, 100, and 200 mg/kg | -- | Positive | -- |
| None | -- | Neutral | -- |
| None | -- | Positive | -- |
| ALA 50 mg/kg orally; TiO2-NPs 150 mg/kg i.p. | 4 weeks | Positive | 24 |
| None | -- | Positive | -- |
| None | -- | Positive | -- |
Best taken: On empty stomach; 30 minutes before meals
Safety & Side Effects
Reported Side Effects
- ⚠ Gastrointestinal discomfort
- ⚠ Skin rash
- ⚠ Hypoglycemia (in diabetics)
- ⚠ Headache
Known Interactions
- ● Antidiabetic drugs (may enhance blood sugar lowering)
- ● Thyroid medications (may affect thyroid hormone levels)
- ● Chemotherapy agents (may reduce efficacy of some agents)
Tolerable upper intake: 2,400 mg/day (highest dose in clinical trials)
Always consult your healthcare provider before starting any supplement.
Frequently Asked Questions
Does Alpha-Lipoic Acid help with Oxidative Stress & Neuroinflammation?
Based on 8 studies with 500 participants, there is limited but promising evidence that Alpha-Lipoic Acid may support Oxidative Stress & Neuroinflammation management. Our evidence grade is C (Some Evidence).
How much Alpha-Lipoic Acid should I take for Oxidative Stress & Neuroinflammation?
Studies have used various dosages. A commonly studied range is 300-600 mg/day. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of Alpha-Lipoic Acid?
Reported side effects may include Gastrointestinal discomfort, Skin rash, Hypoglycemia (in diabetics), Headache. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for Alpha-Lipoic Acid and Oxidative Stress & Neuroinflammation?
We rate the evidence as Grade C (Some Evidence). This rating is based on 8 peer-reviewed studies with 500 total participants. The overall direction of effect is positive.
Related Evidence
Other ingredients for Oxidative Stress & Neuroinflammation
References
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FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The products and information on this website are not intended to diagnose, treat, cure, or prevent any disease. The evidence grades presented are based on our analysis of published peer-reviewed research and do not constitute medical advice. Always consult your healthcare provider before starting any supplement regimen.