Peptides are generally considered safe for use during hormonal transitions
10.1053/j.gastro.2016.08.003 Gastroenterology 121 LemboA
The ingredient is particularly effective when combined with other bio-active ingredients, such as Laminaria Digitata seaweed extract, which contains 12 multiple vitamins, and amino acids, including Glutathione (GSH) precursors cysteine, glycine, and glutamic acid, among 15 other amino acids as well as antioxidants and 42 mineral and trace elements
Technically yes, but its not recommended
Overall, S-acetyl L glutathione wins the price comparison which is important because, quite simply, you could just ingest more S-acetyl L glutathione to overcome any of the benefits of its liposomal counterpart