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R Alpha Lipoic Acid vs Alpha Lipoic Acid: What Is the Difference?

Quick answer

R alpha lipoic acid vs alpha lipoic acid is a question of mirror images: the R form is the one your body makes, while standard alpha lipoic acid is a 50/50 mix of R and S. SciatiEase lists 250 mg of R-ALA per 4 capsules. Trials of the standard mix used 600 to 1,800 mg a day.

Written by the SciatiEase label deskUpdated October 18, 2026 · 4 min read

Render of three SciatiEase bottles with the older blue front — A brand render showing the older bottle front.

The two forms01

What is R alpha lipoic acid vs alpha lipoic acid?

R alpha lipoic acid vs alpha lipoic acid is the difference between one mirror-image form and a mix of two. The R form occurs naturally in the body. Standard alpha lipoic acid, called racemic, holds R and S in equal parts.

R-ALA and standard ALA
	R-ALA	Standard ALA
Contents	R form only	Half R, half S
R in 250 mg	250 mg	about 125 mg

The research02

Which form did the nerve trials use?

The trials reviewed by Cochrane gave 600 to 1,800 mg a day of alpha lipoic acid. Across 816 adults, it probably made little or no difference to neuropathy symptoms at 6 months (Cochrane, Alpha-lipoic acid 2024).

Different condition

These trials looked at neuropathy, not sciatica.

The dose03

How does SciatiEase's R-ALA compare?

SciatiEase has 250 mg of R-ALA per 4 capsules and 125 mg per 2, well under the trial doses.

PEA
167% of the low end at 4 capsules

2 capsules (sales-page morning dose)250 mg
4 capsules (label serving)500 mg
300-600 mg a day in a sciatica trial300-600 mg
Printed on the panel: 500 mg per 4 capsules. (Keppel Hesselink, J Pain Res 2015)
R-alpha lipoic acid
42% of the low end at 4 capsules

2 capsules (sales-page morning dose)125 mg
4 capsules (label serving)250 mg
600-1,800 mg a day in neuropathy trials600-1,800 mg
Printed on the panel: 250 mg per 4 capsules. (Cochrane, Alpha-lipoic acid 2024)
Acetyl-L-carnitine
17% of the low end at 4 capsules

2 capsules (sales-page morning dose)125 mg
4 capsules (label serving)250 mg
1,500-3,000 mg a day in neuropathy trials1,500-3,000 mg
Printed on the panel: 250 mg per 4 capsules. (Cochrane, Acetyl-L-carnitine 2019)
Benfotiamine
67% of the low end at 4 capsules

2 capsules (sales-page morning dose)100 mg
4 capsules (label serving)200 mg
300-600 mg a day in neuropathy trials300-600 mg
Printed on the panel: 200 mg per 4 capsules. (BENDIP trial, benfotiamine 2008)

Coral bars: what 2 or 4 capsules hold, from the Supplement Facts panel. Green bars: daily amounts of that ingredient alone in studies; the light extension shows a range. Studies tested single ingredients, mostly in diabetic neuropathy or back pain, not SciatiEase.

SciatiEase: from $49 a bottle120 capsules · 1, 3 or 6 bottles · free US shipping on 3 or 6 · 180-day guarantee

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Safety04

Is R-ALA safe with diabetes medicine?

Alpha lipoic acid can lower blood sugar, so it adds to the effect of diabetes drugs. Keep taking prescribed medicine and ask a pharmacist first (MSKCC, Alpha-lipoic acid).

3 bottles$177$59 a bottle · free US shipping

Best value6 bottles$294$49 a bottle · free US shipping

Three bottles cost $177, six cost $294, with a 180-day guarantee. Check the ingredients guide and side effects.

FAQ05

R-ALA questions

Is R-lipoic acid better absorbed than the standard mix?

Makers say so, but direct human comparisons are scarce, so treat it as a claim. R-ALA simply has no S half.

Does the label say racemic or R-ALA?

The SciatiEase panel names R-alpha lipoic acid at 250 mg, so it lists the R form. The official site's chart shows 300 mg, which conflicts; follow the panel.

Can alpha lipoic acid affect blood sugar?

Yes, it can lower blood sugar, so people on diabetes medicine should ask a pharmacist before using it. Keep taking prescribed medicine.

Who wrote this06

Written and reviewed by

Written byThe SciatiEase label deskGosciatiease, SciatiEase authorized U.S. retailer

Pages built from the label, the official site, the sales page and linked NIH, FDA, FTC and peer-reviewed sources.

Medically reviewed byDr. Julia Buchfuhrer, MD, PhysicianRole: Medical reviewerReview date: October 19, 2026

Last updated October 18, 2026. Read our editorial standards and how we check reviews. This website is run by a SciatiEase authorized U.S. retailer, not by the manufacturer. We are paid a commission when you buy through our order links.

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