⚠ Research and educational use only — not for human consumption. Nothing for sale, no dosing advice. PeptideCompare is non-profit and independent.
Compare free →
Suppliers 🛡 Quality & badges 📖 Encyclopedia 📰 Articles 🧪 Calculator
LONGEVITY TOPICS
⚡ NAD+ Precursors 🔑 Sirtuin Activators 🧹 Senolytics ♻️ Autophagy 🔋 Mitochondrial 🌡️ Hormesis
About FAQ Contact Policy
Home / Peptide Database / L-Carnitine
FAT METABOLISM / ENERGY

L-Carnitine

L-Carnitine is a naturally occurring amino acid derivative essential for the transport of long-chain fatty acids into mitochondria for beta-oxidation. of the most extensively studied metabolic compounds in human nutrition and sports science.

2 suppliers · Limited coverage 2 price rows 📖 Read the encyclopedia guide →
Available strengths
500/600mg
2 of 2 rows in stock

Potency loss over time

Estimated potency retained (%) per storage condition. Hover the chart for details.

Freezer −20 °C
36+ mo
Stable · >95% potency
Fridge 4 °C
19-26 mo
In use · after recon
Room 20 °C
7-9 mo
Acceptable · slow loss
Warm 37 °C+
4-5 wks
Poor · accelerated loss

⚠ A structural estimate, derived from each compound's sequence length, cyclisation and oxidation-, deamidation- and light-sensitive residues. Indicative only — not lab-measured per batch.

Time in body

How much of a single dose remains over time, modelled from the terminal half-life. Illustrative — not a dosing tool.

Half-life ~15.0 h (human PK) · effectively cleared (~97%) after ~3 d (5 half-lives).

Research context only — not dosing guidance. · Source: Human PK (~15 h)

Strength 500mg1
#SuppliersPrice€/mgPrice trend (6 months)PurityCOAScore ⓘ
1
BEYBEY
BEYOND PEPTIDES
in stock 🇪🇺 EU
€42.96€0.09/mg99%✔ HPLCShop →
Strength 600mg1
#SuppliersPrice€/mgPrice trend (6 months)PurityCOAScore ⓘ
1
NEXNEX
NEXTGEN PEPTIDES BEST
in stock 🇳🇱 NL
€44.95€0.07/mg99%✔ HPLCShop →

Prices manually checked and updated monthly — source: publicly available supplier data. No affiliate links, no paid placement.

L-Carnitine

Mechanism, evidence level, EU status and COA guidance per compound. No dosages, no protocols — that belongs with a doctor.

Open encyclopedie-gids →
PeptideCompare AssistantOnline · replies instantly
Hi! I help you quickly find the right page — about legality, COAs, badges or suppliers. No price advice, no dosing.
Try a question
What does COA Verified mean? Most tested supplier? Is this legal here?
Navigation assistant · no medical advice