glutathione spray uses Paula's Choice 25% Vitamin C+ Clinical Serum 1 fl. oz Main - ✨ New at

The gut microbiota, which comprises approximately 100150 times more genes than the human genome, is found in the human intestines and includes approximately 1000 species and 7000 types of bacteria, gram-positive or gram-negative Firmicutes (including the species Lactobacillus, Eubacterium and Clostridium), and gram-negative Bacteroidetes form the majority of the bacteria (containing Bacteroides and Prevotella ) (Tarawneh and Penhos, 2022)

They're also ideal for individuals undergoing detox programs

doi: 10.3390/cells13030248 196 ZengLYangKYuGHaoWZhuXGeAet al

Some intranasal sprays (different formulations from those being used in studies) are sold as well