Prices checked 25 Sept 2026 · 166 listings · 149 in stock · Other compounds sold by peptide stores
Each currency is shown separately; prices are never converted.
Regulatory status
Levocarnitine is a licensed prescription medicine for carnitine deficiency in the UK and US, and a legal food supplement at oral doses. Injectable vials sold as 'research' products are not approved medicines.
Rules on buying, importing and using this product differ by country. Suppliers list it for laboratory research; nothing here is medical advice.
Showing 39 of 91 suppliers · prices in USD only, never converted
38 products tracked · Delivery Delivery times depend on the destination; most U.S. orders arrive in 3 business days with standard services.
From US$0.10/mg (600MG)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-CARNITINE 600MG | 600MG | US$60.00 | US$0.10/mg | Out of stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine | 20ml | US$65.00 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
58 products tracked · Delivery dispatch promptly via UPS within 1 to 3 business days · Ships to 1 country
From US$0.13/mg (600mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine 200mg – Research Grade Amino Acid Compound | 200mg | US$55.00 | US$0.28/mg | In stock | On their site ↗ |
| L-Carnitine 400mg – Research Grade Amino Acid Compound | 400mg | US$59.99 | US$0.15/mg | In stock | On their site ↗ |
| L-Carnitine 600mg – Research Grade Amino Acid Compound | 600mg | US$75.00 | US$0.13/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
104 products tracked
From US$0.12/mg (200mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine 200mg | 200mg | US$24.99 | US$0.12/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
92 products tracked · Delivery Orders fulfilled from our US warehouse to US-based researchers typically arrive within 2–5 business days.
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine | 600mg × 10 vials | US$59.00 | — | In stock | On their site ↗ |
| L-Carnitine | 1200mg × 10 vials | US$100.00 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
From US$0.02/mg (5000mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine 5000mg | 5000mg | US$77.00 | US$0.02/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
60 products tracked · Ships to 1 country
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine | 10ml | US$52.99 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
51 products tracked · Ships to 1 country
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine | 60mg-ml-10ml | US$24.99 | — | In stock | On their site ↗ |
| L-Carnitine | 600mg-ml-10ml | US$39.99 | — | Out of stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine 5000 mg | 5000 mg | US$17.50 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
58 products tracked · Delivery Please allow 48 hours for final delivery resolution. · Ships to 1 country
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine 20ml | 20ml | US$50.00 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
28 products tracked
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine | As listed | US$40.00 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
41 products tracked · Ships to 1 country
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L – Carnitine | As listed | US$55.00 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-CARNITINE | As listed | US$56.99 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
46 products tracked · Ships to 1 country
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine 500mg-mL (10mL) | 500mg | US$48.00 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
82 products tracked · Ships to 1 country
From US$0.10/mg (600mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Buy L-Carnitine – 600mg | 600mg | US$61.00 | US$0.10/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-carnitine 25 ml (price per box) | 25 ml | US$59.99 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine | As listed | US$35.99 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine 500mg-mL (10mL) | 500mg | US$48.00 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
72 products tracked · Ships to 1 country
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine | As listed | US$63.00 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine 5000MG | 5000MG | US$60.00 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
From US$0.10/mg (600 MG)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-CARNITINE 600 MG | 600 MG | US$60.00 | US$0.10/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
From US$0.11/mg (600mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-CARNITINE 600mg | 600mg | US$64.95 | US$0.11/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine Injectable | 50ml / 500mg per ml / 25g | US$103.19 | — | Out of stock | On their site ↗ |
| L-Carnitine | As listed | US$0.00 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine | As listed | US$59.99 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
134 products tracked
From US$0.08/mg (1200 mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine Peptide | 200 mg | US$45.00 | US$0.23/mg | In stock | On their site ↗ |
| L-Carnitine Peptide | 400 mg | US$50.00 | US$0.13/mg | In stock | On their site ↗ |
| L-Carnitine Peptide | 600 mg | US$53.00 | US$0.09/mg | In stock | On their site ↗ |
| L-Carnitine Peptide | 1200 mg | US$101.00 | US$0.08/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
109 products tracked
From US$0.12/mg (600mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine 600mg | 600mg | US$71.50 | US$0.12/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
From US$0.10/mg (600mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine 600mg | 600mg | US$59.99 | US$0.10/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-CARNITINE | As listed | US$39.00 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
283 products tracked · Ships to 1 country
Warning: Not confirmed as Limitless Life Nootropics Details
From US$0.08/mg (1200 mg)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine Peptide | 200 mg | US$45.00 | US$0.23/mg | In stock | On their site ↗ |
| L-Carnitine Peptide | 400 mg | US$50.00 | US$0.13/mg | In stock | On their site ↗ |
| L-Carnitine Peptide | 600 mg | US$53.00 | US$0.09/mg | In stock | On their site ↗ |
| L-Carnitine Peptide | 1200 mg | US$101.00 | US$0.08/mg | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
From US$0.01/mg (5000MG)
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine 5000MG | 5000MG | US$60.00 | US$0.01/mg | Unknown | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
17 products tracked
Warning: Ownership not confirmed Details
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine | Amino Asylum Research Compound | As listed | US$19.99 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine Peptide | As listed | US$84.50 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine | Laboratory Reference Material | 20ml-350mg-ml | US$75.00 | — | Out of stock | On their site ↗ |
| L-Carnitine | Laboratory Reference Material | 30ml-500mg-ml | US$95.00 | — | In stock | On their site ↗ |
| L-Carnitine | Laboratory Reference Material | 20ml-650mg-ml | US$90.00 | — | In stock | On their site ↗ |
| L-Carnitine | Laboratory Reference Material | 20ml-675mg-ml | US$90.00 | — | Out of stock | On their site ↗ |
| L-Carnitine | Laboratory Reference Material | 20ml-750mg-ml | US$95.00 | — | Out of stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine | As listed | US$59.99 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
63 products tracked · Ships to 2 countries
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine | As listed | US$35.00 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
53 products tracked · Ships to 36 countries
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine 200mg/10ml | 10-Vial Kit | 2,000mg Total | Fatty Acid Oxidation Research | 200mg | US$190.00 | — | In stock | On their site ↗ |
| L-Carnitine 200mg/10ml | 20-Vial Kit | 4,000mg Total | Fatty Acid Oxidation Research | 200mg | US$330.00 | — | In stock | On their site ↗ |
| L-Carnitine 400mg/10ml | 10-Vial Kit | 4,000mg Total | Fatty Acid Oxidation Research | 400mg | US$210.00 | — | In stock | On their site ↗ |
| L-Carnitine 400mg/10ml | 20-Vial Kit | 8,000mg Total | Fatty Acid Oxidation Research | 400mg | US$370.00 | — | In stock | On their site ↗ |
| LC1200 L-Carnitine 1200mg/mL | 10-Vial Kit | Fatty Acid Oxidation Research | 1200mg | US$240.00 | — | In stock | On their site ↗ |
| LC2000 L-Carnitine 2000mg/mL | 10-Vial Kit | Fatty Acid Oxidation Research | 2000mg | US$270.00 | — | In stock | On their site ↗ |
+ 4 more on the full catalogue.
Prices as last checked on their site. The supplier confirms the final price and availability.
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| Hexanoyl-L-Carnitine-d3 HCl (N-methyl-d3) | CAS 2483831-95-2 | As listed | US$1,040.90 | — | In stock | On their site ↗ |
| Tetradecanoyl-L-Carnitine-d3 HCl (N-methyl-d3) | CAS 1334532-25-0 | As listed | US$1,040.90 | — | In stock | On their site ↗ |
| Dodecanoyl-L-Carnitine-d3 HCl (N-methyl-d3) | CAS 2687960-76-3 | As listed | US$1,040.90 | — | In stock | On their site ↗ |
| Decanoyl-L-Carnitine-d3 HCl (N-methyl-d3) | CAS 2483831-87-2 | As listed | US$1,040.90 | — | In stock | On their site ↗ |
| Octanoyl-L-Carnitine-d3 HCl (N-methyl-d3) | CAS 1334532-24-9 | As listed | US$1,040.90 | — | In stock | On their site ↗ |
| Butyryl-L-Carnitine-d3 HCl (N-methyl-d3) | CAS 1334532-21-6 | As listed | US$892.50 | — | In stock | On their site ↗ |
+ 3 more on the full catalogue.
Prices as last checked on their site. The supplier confirms the final price and availability.
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine | As listed | — | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
43 products tracked · Ships to 1 country
| Listing as named | Size | Price | Per mg | Stock | |
|---|---|---|---|---|---|
| L-Carnitine – Premium Research Compound | As listed | US$44.99 | — | In stock | On their site ↗ |
Prices as last checked on their site. The supplier confirms the final price and availability.
Told when L-Carnitine gets cheaper
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At a glance · 25 Sept 2026
L-Carnitine (levocarnitine) is a small amino-acid derivative that the body makes and that meat supplies, and its job is to carry long-chain fatty acids into mitochondria so they can be burned. It is a licensed prescription medicine for carnitine deficiency in the UK and the US, a legal food supplement at oral doses, and, in the form of injectable vials sold by peptide stores, an unlicensed injectable marketed for fat loss. It is not a peptide. The trial record shows a modest average weight loss of around a kilogram in overweight adults, a muscle carnitine rise that took months of oral dosing with carbohydrate, and a gut-bacteria concern about TMAO that is still being argued over. Read the full L-Carnitine guide, with the published research and references.
Arithmetic for the vial sizes stores list: concentration after adding water, and what an amount is in units on a U-100 syringe. It does not suggest an amount. Full calculator and worked examples.
Concentration
0.5 mg/mL
5 mcg per unit on a U-100 syringe · 50 mcg per 0.1 mL
Enter an amount per draw to see how many units it is and how many draws the vial holds.
The median listed price per mg across every tracked supplier listing L-Carnitine in each currency, recorded daily from validated listings only. Days with too few listings to publish are left out, not estimated. How we validate prices
USD · median per mg
No validated daily statistics yet. A trend appears once there is more than one day of data.
EUR · median per mg
No validated daily statistics yet. A trend appears once there is more than one day of data.
Catalogue changes, last 30 days
157 listings added · 0 withdrawn
Price per mg is only half the comparison. Check that the supplier publishes a certificate of analysis for the batch it is selling, ideally from an independent laboratory, and that the certificate confirms identity as well as purity: our guide on how to read a COA shows what to look for. A price far below the rest of the list is more often a warning than a bargain; peptide prices explained sets out why.
For what L-Carnitine is and what published studies have found, see our L-Carnitine guide. Handling questions are covered in how to store peptides, and the peptide calculator converts a vial size and water volume into concentration and syringe units. Rules on buying and importing differ by country: see legal status by country, or narrow this list to your region above.
How to spot a fake peptide supplier explains each of these in more detail, and third-party peptide testing covers what independent results can and cannot prove.
Most research peptides are sold as freeze-dried (lyophilised) powder in sealed vials, which is mixed with a diluent such as bacteriostatic water before use in the lab. Some suppliers also sell pre-mixed solutions, nasal sprays or capsules under the same name. These are different products with different stability and dosing, so compare price per mg only between the same form, and check which form a listing is before comparing it with the rest of the table.
91 of the suppliers PepFinder tracks list L-Carnitine. The highest rated are Zenith Biopeptides, Atomik Labz, Great Northern Peptides. The list on this page is ranked by PepFinder Score, which weighs reliability, delivery, pricing, support and customer reviews; nobody pays to be included or to rank higher.
Listed prices in USD run from US$0.01/mg to US$0.28/mg, median US$0.10/mg, across 20 listings from 12 suppliers. Compare price per mg rather than price per vial, and only within one currency; a price far below the rest is more often a warning than a bargain.
Suppliers on this page list L-Carnitine in cobalamin) 1mg, 2mg, 5mg - Ultimate, 5mg, 10mg - Ultimate, 10mg. Most research peptides are sold as freeze-dried powder in sealed vials; capsules, sprays and pre-mixed solutions are different products, so compare price per mg only between the same form.
It depends on the country. PepFinder summarises the rules for the UK, the US, Canada, Australia, New Zealand and Europe, with links to the regulators' own statements. Choose a region above to see suppliers and the rules for that country.
Ask for a certificate of analysis for the batch being sold, and check that it names the laboratory, the batch number and the test date, and that it confirms identity by mass spectrometry as well as purity by HPLC. PepFinder has not yet collected certificates for L-Carnitine from these suppliers, so check each supplier's own site.
How this list is built: suppliers appear because they list L-Carnitine on their own website, read by our catalogue checks; nobody pays to be included or to move up. Ranking is by PepFinder Score. Prices, sizes and stock are as each site listed them when checked and may have changed. Provisional scores are based on incomplete research.
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