L-Carnitine 216mg/10ml

Important Note

This page is informational and does not authorize use. Peptify clients should complete assessment, disclose medications and health history, and follow the clinician-approved plan only.

Do not start, stop, combine, or change a protocol based only on website content.
Emergency symptoms require urgent medical care, not a website or routine follow-up message.

Quickstart Highlights

L-Carnitine is an amino-acid derivative (a quaternary ammonium compound the body makes from lysine and methionine) — not a peptide, despite appearing in this collection of peptide protocols[1]. It shuttles long-chain fatty acids into the mitochondria (the carnitine / CPT shuttle) so they can undergo beta-oxidation for energy[5]. The prescription form levocarnitine (Carnitor) is FDA-approved for primary and secondary carnitine deficiency by the oral and IV routes; the once-daily subcutaneous fat-loss use outlined here is off-label and not an approved indication or route. Evidence for L-carnitine injections aiding fat loss in non-deficient people is weak and inconsistent — presented for research and educational use only.

Add 2.0 mL bacteriostatic water to one 200 mg vial → 100 mg/mL, so each unit on a U-100 syringe equals exactly 1 mg.
50–100 mg once daily, titrated gradually across a 12-week course; advanced use goes up to 200 mg daily.
At 100 mg/mL, 1 unit = 1 mg (0.01 mL); 50 mg = 50 units and 100 mg = 100 units on a U-100 syringe.
Lyophilized: store at −20 °C (−4 °F); once reconstituted, refrigerate at 2–8 °C (35.6–46.4 °F) and do not freeze the solution.
Important: Start with the Prep & Injection Guide — it covers the preparation and safety basics every protocol on this site assumes.

Dosing & Reconstitution Guide

A single practical dilution with accurate once-daily dosing, step by step

Standard / Gradual Approach (2.0 mL = 100 mg/mL)

Phase / Week(s)	Dose & Frequency	Volume (U-100 units / mL)
Weeks 1–2	50 mg (1× daily)	50 units (0.50 mL)
Weeks 3–12	100 mg (1× daily)	100 units (1.0 mL)
Advanced (optional)	up to 200 mg (1× daily)	up to 200 units (2.0 mL)

Reconstitute: Add 2.0 mL bacteriostatic water to one 200 mg vial → final concentration 100 mg/mL.
Typical daily range: 50–100 mg once daily, raised gradually over a 12-week course; advanced use up to 200 mg daily.
Easy measuring: At 100 mg/mL, 1 unit = 1 mg (0.01 mL) on a U-100 syringe, so the units drawn equal the milligrams dosed — 50 mg is 50 units, 100 mg is 100 units.
Storage: Lyophilized: store at −20 °C (−4 °F); after reconstitution, refrigerate at 2–8 °C (35.6–46.4 °F) and do not freeze the mixed solution.
Frequency: one subcutaneous injection each day, titrating up as tolerated. A 200 mg vial reconstituted with 2.0 mL gives 100 mg/mL, so on a U-100 syringe the units drawn equal the milligrams dosed[3]. Doses above 100 mg can be split into two injections at separate sites for comfort. These figures are illustrative reference values, not approved human dosing[4].

Reconstitution Steps

Draw 2.0 mL of bacteriostatic water into a sterile syringe.

Release it slowly down the vial’s inner wall to limit foaming.
Swirl or roll gently until fully dissolved — don’t shake.
Label with the date and concentration, then refrigerate at 2–8 °C (35.6–46.4 °F), shielded from light.
The 2.0 mL dilution gives a clean 100 mg/mL so 1 unit equals 1 mg on a U-100 syringe, making every dose easy to read. Avoid freezing the reconstituted solution, since freeze–thaw can degrade it.
Important: This guide is for educational purposes only and is not medical advice. For research use only. Not for human consumption.

Supplies Needed

Quantities below assume an 8–16 week course of once-daily injections with gradual titration.

A 200 mg vial reconstituted with 2.0 mL covers two days at the 100 mg maintenance dose, so plan roughly one vial every two days.
8 weeks: ~28 vials
12 weeks: ~42 vials
16 weeks: ~56 vials
Per injection: 1 syringe
8 weeks (once daily): ~56 syringes
16 weeks (once daily): ~112 syringes
Use 2.0 mL per 200 mg vial for reconstitution.
8 weeks (~28 vials): ~56 mL → 6 bottles
16 weeks (~56 vials): ~112 mL → 12 bottles
One for the vial stopper + one for the injection site each day.
Per injection: 2 swabs
8 weeks (once daily): ~112 swabs → 1–2 boxes

Protocol Overview

A concise summary of the once-daily regimen, drawn from commonly cited reference protocols.

▪Goal: Provide L-carnitine to support mitochondrial fatty-acid transport and fat metabolism — an off-label aesthetic use whose fat-loss benefit in non-deficient people is weak and inconsistent in trials[5][6].
▪Schedule: Once-daily subcutaneous injections for about 12 weeks, optionally extended for longer research goals.
▪Dose Range: 50–100 mg per day with gradual titration; advanced use up to 200 mg per day.
▪Reconstitution: 2.0 mL bacteriostatic water per 200 mg vial gives 100 mg/mL, so 1 unit = 1 mg.
▪Storage: Keep the dry vial frozen at −20 °C (−4 °F); once mixed, refrigerate at 2–8 °C and do not freeze the solution.

Dosing Protocol

A suggested daily titration approach based on common reference doses.

▪Start: Begin at 50 mg once daily to gauge tolerability.
▪Titrate: Increase to 100 mg daily after about two weeks as tolerated.
▪Target: Maintain 100 mg daily through week 12; advanced users may go up to 200 mg daily.
▪Cycle Length: Typically about 12 weeks; some references extend longer.
▪Timing: Inject at a consistent time each day and rotate injection sites systematically.

Storage Instructions

Correct storage is what preserves the compound’s stability and activity.

▪Lyophilized: Hold the dry vial at −20 °C (−4 °F) in dry, dark conditions and limit moisture exposure[7].
▪Reconstituted: Refrigerate at 2–8 °C (35.6–46.4 °F) and use within about 28 days; do not freeze the mixed solution, as freezing can denature peptides[8].
▪Handling: Let frozen vials warm to room temperature before opening so condensation won’t form, and keep the solution clear of heat and direct light.
▪Freeze–thaw: Avoid repeated freeze–thaw cycles of the reconstituted solution.

Important Notes

Practical points that keep daily administration safe and consistent.

▪Sterile technique: Use a fresh sterile U-100 insulin syringe each time and drop it straight into a puncture-proof sharps container afterward.
▪Site rotation: Move between abdomen, thighs and upper arms to reduce local irritation and lipohypertrophy[9].
▪Slow injection: Push the plunger slowly and pause a few seconds before withdrawing the needle to prevent backflow.
▪Recordkeeping: Log the daily dose, injection site and any observations to keep the protocol consistent.
▪Regulatory note: L-carnitine itself is permitted by WADA, but IV infusions/injections of more than 100 mL per 12 hours breach the M2 manipulation rule and have caused real anti-doping sanctions. Levocarnitine (Carnitor) is FDA-approved only for carnitine deficiency; the subcutaneous fat-loss use here is off-label[10].

How This Works

L-Carnitine is an amino-acid derivative — a quaternary ammonium compound the body synthesises from the amino acids lysine and methionine[1][2]. It is not a peptide, even though it appears in this collection of peptide protocols.

Its core role is the carnitine / CPT shuttle: L-carnitine binds long-chain fatty acids and carries them across the inner mitochondrial membrane so they can undergo beta-oxidation for energy[5]. This is why it is studied in the context of fat metabolism and exercise, though injecting it does not reliably increase fat loss in people who are not carnitine-deficient[6].
Oral L-carnitine is poorly absorbed at large doses (roughly 5–18%) and a portion is converted by gut bacteria to trimethylamine-N-oxide (TMAO). Subcutaneous dosing avoids first-pass gut metabolism, but the idea that this meaningfully improves fat-loss outcomes is not well supported and should not be treated as an established benefit[11][12].
Important caveat: levocarnitine is genuinely FDA-approved for primary and secondary carnitine deficiency — but only as oral and IV products. The subcutaneous aesthetic / fat-loss use described here is a different, off-label route and indication, and trial evidence for it in non-deficient people is weak and inconsistent. Treat fat-loss claims as hypotheses, not established outcomes.
This subcutaneous fat-loss protocol is not an approved use of L-carnitine. It is presented here for research and educational purposes only.

Lifestyle Factors

Habits that support fat metabolism and general health alongside the protocol.

▪Nutrition: A balanced diet with a modest calorie deficit does far more for fat loss than any injection.
▪Activity: Regular aerobic and resistance exercise is the main driver of fat oxidation; pair it with adequate recovery.
▪Sleep: Aim for 7–9 hours; poor sleep impairs metabolism and appetite regulation.
▪Stress: Manage stress with evidence-based practices, since it influences metabolism and eating behaviour.

Potential Benefits & Side Effects

What the literature describes for L-carnitine; evidence for the injectable fat-loss use is limited and individual results vary.

▪Carnitine deficiency (approved use): Levocarnitine reliably corrects primary and secondary carnitine deficiency — its only FDA-approved indication[5][6].
▪Fat metabolism (mechanistic): Supports mitochondrial fatty-acid transport; whether injections aid fat loss in non-deficient people is weak and inconsistent in trials[11].
▪Tolerability: Oral and IV L-carnitine are generally well tolerated; subcutaneous injection can cause mild local reactions.
▪Note on fat loss: The subcutaneous fat-loss benefit is off-label and not established; clinical results are weak and inconsistent[13].
▪Injection-site reactions: Mild redness, tenderness or soreness can occur; rotating sites helps.
▪Off-label use: Long-term safety of repeated subcutaneous L-carnitine for fat loss is not well characterised; caution is advised.
▪Sport note: L-carnitine is permitted by WADA, but IV infusions/injections over 100 mL per 12 h breach the M2 manipulation rule.

Injection Technique

General subcutaneous technique, following established clinical best-practice guidance[14][15].

▪Wash your hands well with soap and water.
▪Wipe the vial stopper with an alcohol swab and let it air-dry.
▪Choose a site (abdomen, thigh, or upper arm) and clean it with a fresh alcohol swab, letting it dry fully[15].
▪Draw the intended dose, then check for air bubbles and push any out.
▪Pinch a skinfold at the chosen site between thumb and forefinger.
▪Insert the needle into the pinch at a 45–90-degree angle (use 45 degrees if the fat layer is thin)[14].
▪Skip aspiration for subcutaneous shots — it isn’t needed[14].
▪Press the plunger slowly and steadily until it’s fully down.
▪Wait 5–10 seconds, then pull the needle straight out to prevent leakage.
▪Drop the used syringe straight into a puncture-proof sharps container — never recap a needle.
▪Return the reconstituted vial to the fridge right away.
▪Rotate the injection site each day to prevent irritation and lipohypertrophy[9].
▪Watch the site for excess redness, swelling, or signs of infection.

Recommended Source

For high-purity research compounds and supplies, we point researchers to Prime Lab Peptides.

▪Top-rated on Trustpilot: Independently reviewed as the highest-rated peptide lab on Trustpilot — making it the best current source in the USA. Open source
▪Third-party tested: Every batch ships with a Certificate of Analysis (COA) confirming purity and composition.
▪Consistent quality: ISO-aligned manufacturing and handling keep product integrity reliable batch to batch.
▪Cold-chain integrity: Temperature-controlled shipping and storage across the whole fulfilment chain.
▪Research-grade purity: Fit for educational and research use that demands high-quality peptides.
Note: Product availability and specifications subject to change. Verify current product details on supplier website.
Shop at Prime Lab Peptides →

References

Reference-derived details for L-Carnitine 216mg/10ml.

L-Carnitine (200mg Vial) Dosage Protocol Open source
1 StatPearls (NCBI) L-carnitine biochemistry: a quaternary ammonium amino-acid derivative synthesised from lysine and methionine. View Source ↗ Open source
2 DailyMed (FDA Label) Levocarnitine (Carnitor) prescribing information: approved for primary and secondary carnitine deficiency, oral and IV. View Source ↗ Open source
3 U-100 Insulin Syringe Reference U-100 syringe scale: 1 unit = 0.01 mL, so at 100 mg/mL one unit equals 1 mg. View Source ↗ Open source
4 WADA Prohibited List (M2 Manipulation) L-carnitine is permitted, but IV infusions/injections over 100 mL per 12 h breach the M2 manipulation rule. View Source ↗ Open source
5 Physiological Reviews (PubMed) The carnitine system and fatty-acid transport into mitochondria for beta-oxidation. View Source ↗ Open source
6 Systematic Review (PubMed) L-carnitine supplementation for weight loss: meta-analyses show weak, inconsistent effects. View Source ↗ Open source
7 Peptide Storage Guide Best practices for storing lyophilized peptides (temperature, humidity and light protection). View Source ↗ Open source
8 Bacteriostatic Water Guidance Bacteriostatic water for injection: multi-dose vial stability and handling. View Source ↗ Open source
9 NCBI Bookshelf Best practices for subcutaneous injection: aseptic technique and site rotation. View Source ↗ Open source
10 Nature Medicine (PubMed) Gut-microbial conversion of dietary L-carnitine to TMAO and its association with cardiovascular risk. View Source ↗ Open source
11 Clinical Trial (PubMed) L-carnitine and exercise fat oxidation: limited effect on body composition in non-deficient adults. View Source ↗ Open source
12 Bioavailability Study (PubMed) Oral L-carnitine bioavailability is low (about 5–18% at large doses) due to incomplete intestinal absorption. View Source ↗ Open source
13 ClinicalTrials.gov Trial registry for L-carnitine; approved indications are carnitine deficiency, and fat-loss injection data are limited. View Source ↗ Open source
14 Centers for Disease Control and Prevention (CDC) Subcutaneous injection technique: angle, site and no-aspiration guidance. View Source ↗ Open source
15 Subcutaneous Injection Technique (Patient Education) How to administer a subcutaneous injection: clinical technique guidelines. View Source ↗ Open source
16 Prime Lab Peptides Supplier homepage for research compounds and supplies, with certificates of analysis. View Source ↗ Open source

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