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Head-to-head evidence comparison — which supplement is right for you?
Alpha Lipoic Acid wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
13 of 14 studies with measurable effects showed benefit.
Top outcomes
Verdict
Mostly mechanism / observational
Top outcomes
300-600mg
On empty stomach for best absorption, 30-60 minutes before meals
R-Alpha Lipoic Acid (R-ALA) — the natural form
120,000-240,000 SPU (serrapeptase units)
On empty stomach, 30 min before or 2 hours after meals
Enteric-coated capsules (protects from stomach acid)
4-12 weeks
4-8 weeks
2-4 weeks
1-2 weeks
1-2 weeks
Effects of Oral Alpha-Lipoic Acid Treatment on Diabetic Polyneuropathy: A Meta-Analysis and Systematic Review
Nutrients (2023) · Meta analysis · n=1242
ALA treatment produced favorable results for TSS (a dose-related trend was observed), NDS, and the global satisfaction score.
Effects of selected dietary supplements on migraine prophylaxis: A systematic review and dose-response meta-analysis of randomized controlled trials
Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology (2025) · Meta analysis
In adults, compared with placebo, these supplements did not significantly affect other outcomes, and omega-3 supplementation did not yield a statistically significant reduction in any of these outcomes.
The Effect of Dietary Supplements on Male Infertility in Terms of Pregnancy, Live Birth, and Sperm Parameters: A Systematic Review and Meta-Analysis
Nutrients (2025) · Meta analysis · n=50
This study found no convincing evidence of an effect of any dietary supplements on male infertility.
An up-to-date review of biomedical applications of serratiopeptidase and its biobetter derivatives as a multi-potential metalloprotease
Archives of microbiology (2024) · Systematic review
To overcome such limitations, improved versions of the enzyme were introduced using protein engineering in our previous studies.
Serratiopeptidase: An integrated View of Multifaceted Therapeutic Enzyme
Biomolecules (2022) · Systematic review
Existing serratiopeptidase treatments in combination with antibiotics are popular in the treatment of postoperative swelling.
Fibrinolytic Enzymes for Thrombolytic Therapy
Advances in experimental medicine and biology (2019) · Systematic review
Inability of plasma fibrinolytic system demands better thrombolytic drugs.
Based on multiple meta-analyses showing dose-related trends for TSS improvement. 600mg/day most studied dose with significant benefit vs placebo in 73% of studies. Limited data on doses above 600mg.
Based on 3 RCTs in dental surgery patients. Effects were modest and one study showed dexamethasone was superior. Requires enteric-coated formulation for bioavailability.
AI-estimated from published studies. Interpret as directional guidance.
Alpha Lipoic Acid has a higher evidence score (9/10 vs 7/10) and wins in 2 of 3 categories.
For reduce inflammation, Alpha Lipoic Acid has a higher relevance score (80 vs 70).
No known interactions between Alpha Lipoic Acid and Serrapeptase have been documented in our database. However, always consult a healthcare provider before combining supplements.