Glutathione is mostly safe but there are a few side effects which include: Skins rashes or allergies Cramping or bloating in the abdominal area Temporary headaches Dizziness (uncommon in treatment with IV) These are generally minor and do not need any treatment
Most users add 2 mL BAC water to an 80mg vial (40 mg/mL concentration) and get ~4 weeks of loading dosing, which fits inside the window
Equipment needed: Chest strap heart rate monitor (more accurate than wrist-based devices) Heart rate variability (HRV) app Blood pressure cuff Spreadsheet or tracking app Daily measurements: Morning resting heart rate (before getting up) Morning HRV (using chest strap, 5-minute measurement) Blood pressure (morning, before caffeine) What to track: 7-day rolling average of resting HR (smooths daily variation) HRV trend (declining HRV indicates autonomic stress) Blood pressure trend (should improve or stay stable) Subjective cardiac awareness (scale of 0-5) This level of monitoring is not necessary for most people, but for those who want complete data, it provides early warning of adverse trends and concrete evidence of cardiovascular adaptation over time

Recent data suggest that SAM coordinately regulates homocysteine remethylation and catabolism by inhibiting methionine-conserving enzymes with low K m values and activating methionine-catabolizing enzymes with higher K m values (Finkelstein, 1990
Hansen, J
Pharmacological preconditioning with L-carnitine: relevance to myocardial hemodynamic [PMID: 20566435] Laboratory literature summary: Pharmacological preconditioning with L-carnitine: relevance to myocardial hemodynamic function and glycogen and lactate content