In nature, it exists in various forms in different plants and can be found as either quercetin aglycone or derivatives, while the most abundant form in the diet is glycosides (Owumi et al., 2019)

Abbreviations PDT: Photodynamic therapy OSCC: Oral squamous cell carcinoma CCM: Cancer-cell membrane TME: Tumor microenvironment HNSCC: Head and neck squamous cell carcinoma 5-OOH: 5-hydroperoxide GPX4: Glutathione peroxidase 4 Cho : Cholesterol alkoxyl radical MOFs: Metal-organic frameworks ROS: Reactive Oxygen Species TEM: Transmission electron microscopy XPS: X-ray photoelectron spectroscopy TGA: Thermogravimetric analysis FT-IR: Fourier transform infrared AFM : Atomic force microscopy FCM: Flow cytometry EDS: Energy-dispersive spectroscopy BET: BrunauerEmmettTeller BJH: Barret-Joyner-Halenda DFT: Density functional theory DLS: Dynamic light scattering POD-like: Peroxidase-like TMB: 3,3,5,5-tetramethylbenzidine oxTMB: Oxidized TMB MB: Methylene blue OH: Hydroxyl radicals CAT: Catalase SOSG: Singlet oxygen sensor green O: Singlet oxygen HOK: Human oral keratinocyte Bio-TEM: Bio-transmission electron microscopy CLSM: Confocal laser scanning microscopy WGA: Wheat germ agglutinin CTB: Cholera toxin subunit B LDH: Lactate dehydrogenase H&E: Hematoxylin and eosin mIHC: Multiplexed immunohistochemical References Cai Y, Chai T, Nguyen W, Liu J, Xiao E, Ran X, et al

Think of them as gentle growth-signal boosters
Glutathione Skin Capsule Glutathione capsules are great for your skin, helping to even out your skin tone
Glutathione primarily functions as an antioxidant, helping protect cells from damage caused by external factors such as UV exposure, pollution, and stresskey contributors to dull and uneven skin tone (Dermatol Surg J, 2022)
To take methylene blue orally, add drops into 8 oz of water or juice and drink in the morning or early afternoon