astaxanthin or glutathione which is better SustainWell NAD+ Liquid Drops with Liposomal - Supports Cellular Energy, Dual Antioxidant Action, Healthy Aging Force Factor Hair Growth Accelerator,

Rather than targeting an isolated cellular mechanism, this advanced 80,000mcg matrix integrates four highly active synthetic peptide architectures: a stable gastric pentadecapeptide, a functional thymosin beta-4 fragment, a specialized tripeptide anti-inflammatory ligand, and a potent copper-binding signaling complex

20 mg vial Concentration: 20 mg 3 mL = 6.667 mg/mL (equivalently 6,667 mcg/mL) Dose in mg: 250 mcg = 0.25 mg Draw volume: 0.25 mg 6.667 mg/mL = 0.0375 mL Syringe units: 0.0375 mL 100 = 3.75 units 4 units on a U-100 syringe On the 20 mg vial, one documented dose is a very small draw about the 4-unit mark

FEBS Lett 120:209211 Allen J, Bradley RD (2011) Effects of oral glutathione supplementation on systemic oxidative stress biomarkers in human volunteers

Next, the cells were pelleted by centrifugation at 4,500 g for 10 min at 4 C (high-speed centrifuge CR22N, Eppendorf)