What variations of alpha-lipoic acid exist?

An antioxidant your cells use to make energy. It's mainly used to support blood sugar balance and nerve health. It comes in 3 forms, and they aren't all the same. Here's how they differ.

For education only. What's right for you depends on your health and your medications, so check with your provider before you start or switch. Book a consult 

Our top pick

The standard one

Alpha-lipoic acid (R/S mix)

The form used in most studies. Inexpensive and easy to find.

Good for: Budget-friendly

  • Also consider
  • Easy on the stomach: the slow-release one (Sustained-release ALA)

Every form, in plain words

Also good

The standard one

Alpha-lipoic acid (R/S mix)

The form used in most studies. Inexpensive and easy to find.

Good for: Budget-friendly

Also good

The natural one

R-lipoic acid or stabilized R-lipoate

The natural form. Your body may use it better, but it costs more.

Also good

The slow-release one

Sustained-release ALA

Releases slowly, which may help with stomach upset.

Good for: Easy on the stomach

Spotting a good one on the shelf

Look for

  • Look for 'Alpha-lipoic acid' on the label (the standard one)

Watch out for

  • 'ALA' on a label can also mean alpha-linolenic acid, an omega-3 fat. Check the full name.

Check with your provider first if…

  • You have diabetes, or take insulin or other medicine that lowers blood sugar
  • You take thyroid medicine, since it may affect thyroid hormone levels
  • You drink heavily or are low in thiamine (vitamin B1)
  • You're pregnant or breastfeeding
  • You're in cancer treatment. Ask your oncology team before adding antioxidants.

In Dr. Lesher's store

2 products in Dr. Lesher's dispensary have alpha-lipoic acid. Here's which form, where the label says.

Dr. Lesher, ND

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Dr. Lesher is a Naturopathic Doctor who focuses on autoimmune and chronic conditions in women. Since 2020, she's helped hundreds of patients stop managing symptoms and start healing.

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