L-Carnitine Fumarate vs. L-Carnitine Hydrochloride
Among 2,330 on-market l-carnitine products with an identifiable primary form, 8.8% use L-Carnitine Fumarate (205 products) and 1.6% use L-Carnitine Hydrochloride (38).
| L-Carnitine Fumarate | L-Carnitine Hydrochloride | |
|---|---|---|
| Quality tier | Unrated | Unrated |
| L-Carnitine by weight | 58.1% | 81.6% |
| Share of market | 8.8% | 1.6% |
| On-market products | 205 | 38 |
| Median declared dose | 200 mg middle half: 58.1–290.5 | 250 mg middle half: 78.3–500 |
| Most common brands | Dr. Sinatra, Source Naturals, BulkSupplements.com | BulkSupplements.com, Nutrex Research Basix Series, Moss Nutrition |
Doses are declared per serving in mg. “By weight” is the share of the ingredient that is the nutrient itself (e.g. elemental magnesium in a magnesium salt).
Why L-Carnitine Fumarate is unrated
No head-to-head human bioavailability or efficacy comparison of this form was located in PubMed searches.
Why L-Carnitine Hydrochloride is unrated
No head-to-head human bioavailability or efficacy comparison of this form was located in PubMed searches.
Tiers summarize published comparative bioavailability or outcome evidence for each form (see methodology).
This page describes the market; it is not a recommendation to take either form. Talk to a clinician about what's right for you.
Other l-carnitine comparisons
- L-Carnitine L-Tartrate vs. Acetyl-L-Carnitine (ALC)
- L-Carnitine L-Tartrate vs. Acetyl-L-Carnitine Hydrochloride
- L-Carnitine L-Tartrate vs. L-Carnitine Fumarate
- L-Carnitine L-Tartrate vs. L-Carnitine Hydrochloride
- Acetyl-L-Carnitine (ALC) vs. Acetyl-L-Carnitine Hydrochloride
- Acetyl-L-Carnitine (ALC) vs. L-Carnitine Fumarate
- Acetyl-L-Carnitine (ALC) vs. L-Carnitine Hydrochloride
- Acetyl-L-Carnitine Hydrochloride vs. L-Carnitine Fumarate
- Acetyl-L-Carnitine Hydrochloride vs. L-Carnitine Hydrochloride