This is based on the observation of lack of similar increase in plasma glutathione levels after the administration of the constituent amino acids of glutathione when compared to the administration of glutathione capsules
Khatri, D

Product Overview Form : Injectable Liquid (5 ampoules in a box, 5 ml per ampoule) Dosage : Typically dose ranges from 200 to 600 mg per injection, once or twice a week as an initial dose Typical Cycle Duration : 4-8 weeks Average Cost: $59.99 Key Benefits : Lipid metabolism, improves heart and cognitive health, reduces cholesterol levels, improves physical performance Side Effects: Diarrhea, stomach cramps, and nausea may occur Best Stack: Stacks well with Creatine for muscle mass and strength User Experience : Many users reported better energy levels and mental clarity after 2 weeks of use Recommended Dosage and Cycle Length Heres a generally recommended dosage for injectable L-Carnitine: Standard dose : 500 mg to 1,000 mg per injection Frequency : 2 to 3 times per week, depending on your goals and tolerance Injection type : Intramuscular for deeper absorption or subcutaneous (in the stomach area) for more localized use For beginners, start with 500 mg, once or twice a week, then gradually increase based on how your body responds

This delivery method is said to improve absorption and enhance effectiveness
WC, BBB, and AKG helped with experiments and reviewed and edited the manuscript