L-carnitineLC2

Images are illustrative. Actual specifications are as selected and confirmed in writing.

GLP-1 & Metabolic Research

L-carnitine

Weight, body fat and exercise metabolism

L-carnitine specifications and reference prices. Select a specification to add it to your cart.

2mg*10vials
Reference priceUS$35

For laboratory research only. Not for human or veterinary use.

COA 检测报告 / Reports

Compare all specifications & reference prices
SKUSpecification / packReference price (USD)
LC22mg*10vialsUS$35
LC400400mg/vial x 10vialsUS$109.09
LC600600mg*10vials 液体US$121.21
LC12001200mg*10vials 液体US$181.82

Temporarily sold-out specifications can still be added to an inquiry to ask about restocking. An inquiry is not an order or an agreed price.

RESEARCH FOCUS

Main Uses & FAQs

This page organizes directly related information on body weight, body fat, and exercise metabolism of L-carnitine. First, look at the research questions and findings, then verify the population or species, study preparations, and scope of interpretation.

Main TopicsBody Weight · Body Fat · Exercise Metabolism
USAGE REFERENCE

L-Carnitine · Usage reference (for research purposes)

The following presents common research-context references for reconstitution, storage, dosage and cycles. The following presents common references in research settings. This page does not constitute advice for use in humans or animals.

🧪Reconstitution

Suggested Diluent
Bacteriostatic Water (containing 0.9% benzyl alcohol); some peptides may use sterile water or acetic acid to aid dissolution. See the individual product descriptions.
Diluent Volume
Slowly introduce the diluent along the vial wall until the lyophilized powder is covered. A common example is 5 mg reconstituted with 2 mL of bacteriostatic water, yielding approximately 2.5 mg/mL. Referenced reconstitution volumes are approximately 1–2.5 mL, with 2 mL commonly used. It is suggested to select and record a fixed volume based on the COA supplied with the purchase.
Handling Notes
Introduce the diluent slowly along the vial wall rather than directly onto the lyophilized powder. Leave it for 60–90 seconds to dissolve naturally; do not shake vigorously.

💾Storage

Unreconstituted Lyophilized Powder
Refrigerate at 2–8°C, protected from light; avoid repeated freeze–thaw cycles.
After Reconstitution
Refrigerate at 2–8°C; a common recommendation is touse within 28 days; do not freeze.
Transport
For short periods, use insulated packaging with ice packs; avoid high temperatures and direct light.

📏Dosage Reference (Research)

Purpose / SettingCommon Reference
Reference usageCommonly used as muscle injection/oral adjuvant, combined with B vitamins

🔁Cycle

Use according to exercise/metabolic research protocol.

View the Complete Usage Guide Library →

Note: The above describes common research-context references, rather than clinical recommendations. Refer to the batch COA and research protocol. For research use only; not for human or animal use.

Research SummaryKey Findings

What research findings exist regarding L-carnitine on body weight, body fat, and exercise metabolism?

The combination group shows better fat mass, some obesity parameters, and appetite indicators than L-carnitine alone. Another study reports: the combination group has greater improvements in some body weight, waist circumference, and metabolic indicators.[1] ↗ [2] ↗

Before ReadingStudy populations, species, formulations and delivery conditions each have a defined scope. Research on an ingredient does not establish that this site's product batches have been validated for efficacy in humans or veterinary use.
2 Main ReferencesSorted by First Publication Date ↓
Human Study2025REF. 01

How should the body composition research on L-carnitine combined with probiotics be interpreted?

Research Findings

The combination group shows better fat mass, some obesity parameters, and appetite indicators than L-carnitine alone.[1] ↗

Study Design

46 obese women; 8-week L-carnitine combined with probiotics randomized study.

Scope & Limitations

May share research samples with existing reports; cannot be considered independent replication, nor can they prove the effect of the single drug.

View the Article Title and Full Citation+

Modulatory Effects of Multi-species/Multi-strain Synbiotic and L-carnitine Concomitant Supplementation on Atherogenic-Indices, Body Composition, Visceral Obesity, and Appetite in Metabolically Healthy Women with Obesity: A Double-Blind Randomized Controlled Clinical Trial.

Fallah F, Mahdavi R

Probiotics and Antimicrobial Proteins · Volume and Issue Year 2025
First published 2025-02-08 · PMID 39921845
DOI 10.1007/s12602-025-10460-2

Human Study2023REF. 02

What do the body weight changes in combined supplementation studies indicate?

Research Findings

The combination group has greater improvements in some body weight, waist circumference, and metabolic indicators.[2] ↗

Study Design

46 obese women; 8-week L-carnitine combined with probiotics versus carnitine control.

Scope & Limitations

cannot attribute the additional effects of probiotics to carnitine alone; only oral combination studies exist, and injection for fat reduction is not supported.

View the Article Title and Full Citation+

Ameliorating effects of L-carnitine and synbiotic co-supplementation on anthropometric measures and cardiometabolic traits in women with obesity: a randomized controlled clinical trial.

Fallah F, Mahdavi R

Frontiers in Endocrinology · Volume and Issue Year 2023
First published 2023-01-01 · PMID 37929031
DOI 10.3389/fendo.2023.1237882

i

Currently, 2 original studies related to the theme of this page have been selected. Fewer than 3, leaving a gap, no supplementation from other sources. This page is a usage-oriented positive data selection, not a systematic review or dosing recommendation. Historical studies, combination preparations, and special models are all separately indicated.

GO DEEPER

What Questions Do These Studies Address?

Compare study populations, findings and scope.

↗
QUESTIONS, ANSWERED

L-carnitine · Frequently Asked Questions.

What research findings exist regarding L-carnitine on body weight, body fat, and exercise metabolism?+

The combination group shows better fat mass, some obesity parameters, and appetite indicators than L-carnitine alone. Another study reports: the combination group has greater improvements in some body weight, waist circumference, and metabolic indicators.[1] ↗ [2] ↗

Can the study of L-carnitine combined with probiotics prove fat reduction with carnitine alone?+

Not allowed. Some results in combination groups superior to carnitine control may involve probiotic effects, and related papers may share samples; oral studies cannot be used as a basis for injection fat reduction.[2] ↗ [1] ↗

L-carnitine—these conclusions apply to which study populations?+

46 obese women; 8-week L-carnitine combined with probiotics randomized study; 46 obese women; 8-week L-carnitine combined with probiotics versus carnitine control. May share research samples with existing reports; cannot be considered independent replication, nor prove single-drug effects.[1] ↗ [2] ↗

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