Metabolic & Weight Loss · Source-reviewed dossier
L-Carnitine
Source-Reviewed Research Dossier
L-carnitine is a small molecule your body makes to move long-chain fats into the cell's energy-producing compartments. This natural transport role is well established. Because of it, researchers have studied L-carnitine supplements for exercise and recovery. Reviews in active people show mixed results: some early studies suggested better peak performance, while later work on recovery reported less muscle damage, soreness and oxidative stress signals. Some studies in older adults noted more muscle tissue and less fatigue. These findings come from many different products, doses and groups, so they do not describe any one research material, including this catalog item, which is for laboratory work only.
Compound overview
Shared values below are consolidated from the current catalog record. They are not independent verification or lot results; request the applicable product specification and ask which lot records are available before ordering.
Product identity
- Product type
- Small-molecule research compound
- Catalog family
- L-Carnitine
- Research category
- Metabolic & Weight Loss
- Catalog CAS RN
- 541-15-1
- Catalog molecular formula
- C7H15NO3
- Catalog molecular weight
- 161.20 g/mol
- Evidence status
- Established biochemistry with heterogeneous supplementation evidence
- Intended use
- Research, development and manufacturing use only
Literature reference parameters
- Compound or material class
- Quaternary ammonium metabolite / fatty-acid transport cofactorCatalog-family identity
- Evidence scope
- Established biochemistry with heterogeneous supplementation evidenceDo not generalize beyond the cited model
- Source review
- Primary or authoritative records linked belowChecked 2026-09-01
Identity safeguard Reference identifiers above describe the literature compound record. Confirm the supplied form, formula, molecular weight, purity and storage conditions against the applicable product specification and any available lot records.
How L-Carnitine is studied
A target-to-pathway view grounded in the linked research records.
Reported research findings
What published studies report about L-Carnitine
Reported outcomes are paired with their experimental model and evidence boundary.
Carnitine function in fatty-acid transport is established
A foundational review describes carnitine biology, homeostasis and mitochondrial fatty-acid transport.
General physiology does not specify this catalog formulation.
Read the primary studyExercise-recovery findings are heterogeneous
A 2018 review examined L-carnitine supplementation and recovery-related outcomes across studies.
Different products, doses and populations prevent transfer to a catalog research solution.
Read the primary studyCatalog options
Variant specifications
Pack-level catalog data; lot-level controls remain document-specific.
Specification & documents for LC600
Product specification
Small-molecule research compound · 10 ml/vial nominal · 10-vial pack · chemical form, identity and assay controlled by lot specification.
Lot documentation
Document availability and scope must be confirmed for this variant and lot in the written quotation. A catalog description is not a lot-specific test result.
Specification & documents for LC1200
Product specification
Small-molecule research compound · 10 ml/vial nominal · 10-vial pack · chemical form, identity and assay controlled by lot specification.
Lot documentation
Document availability and scope must be confirmed for this variant and lot in the written quotation. A catalog description is not a lot-specific test result.
Quality documentation
A listed document is not proof of availability for this lot. Ask the team to confirm the current COA status and the scope of any other records before ordering.
Analytical interpretation
Interpret the documents, not just the headline number.
Use the source-reviewed guide to separate chromatographic area purity, quantitative assay, LC-MS identity, composition and stability evidence before comparing variants or requesting a lot record.
Open the Quality & Documentation HubHPLC area ≠ assayA dominant peak does not establish target mass fraction.
Intact mass ≠ full sequenceIdentity strength depends on resolution and orthogonal evidence.
Counterions affect contentWater, salt form and solvents change the as-is composition.
Storage needs a data basisShipping practice is not the same as stability evidence.
Evidence map
Research context
Published studies and regulatory records, not customer testimonials or usage guidance.
Carnitine function in fatty-acid transport is established
General physiology does not specify this catalog formulation.
View primary recordExercise-recovery findings are heterogeneous
Different products, doses and populations prevent transfer to a catalog research solution.
View primary recordCurated references
Third-party publications selected for direct relevance.
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01
Biochemistry review
L-Carnitine
Rebouche CJ. 1996. PMID 8758120.
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02
Literature review
L-Carnitine Supplementation in Recovery after Exercise
Fielding R, et al. Nutrients. 2018. PMID 29534031.
L-Carnitine questions
Concise answers for researchers comparing identity, evidence and catalog variants.
What effects are studied for L-Carnitine?
Research has mainly looked at exercise and recovery. Reviews in active people describe inconsistent performance findings. More recent work reports reduced muscle damage signals, soreness and oxidative stress. Some studies in older adults noted changes in muscle tissue and fatigue. These results come from oral supplements over varied periods, in different groups, so they reflect general carnitine research, not any catalog material.
How should the L-Carnitine research findings be understood?
The exercise studies examined particular supplements and groups. They report varied findings, so carnitine's known role in fat transport is easier to state than a universal performance benefit. A laboratory solution has its own concentration, formulation and lot requirements; those are not verified by a nutrition study. Separate what carnitine does naturally in cells from what a specific supplement has actually shown.
What evidence is available for L-Carnitine?
Biochemical function is established, while outcome evidence varies by population and study design.
Does the cited research validate this catalog material?
No. The cited records describe their own intervention, formulation, model and controls. They do not verify the identity, purity, sterility, safety or efficacy of a catalog lot.
Which quality documents can be requested?
A lot-specific COA, product specification sheet and analytical method summary can be requested where applicable.
How should L-Carnitine be stored?
Store at 2-8 °C. Do not freeze. Protect from light. Confirm the applicable storage statement on the product-specific specification and lot documentation.
Knowledge tools
Continue with structured evidence
Move from this dossier into canonical evidence maps, verified status records, analytical interpretation and laboratory calculations.
Claims were checked against the linked primary publication, regulatory label or authoritative compound record. Published findings stay attached to their study model, formulation and route. Catalog identity and lot quality remain controlled by the applicable specification and lot-specific documents.
Technical procurement
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Selected: LC600 · 10 ml × 10 vials