All experimental procedures involving animals were conducted following international recommendations for the care and use of laboratory animals, as well as the guidelines of the Brazilian Society of Neurosciences and Behavior for Animal Care
Reduces Melanin Production The primary way glutathione injections help in skin whitening is by inhibiting an enzyme called tyrosinase, which is essential for melanin (skin pigment) production
Adverse Effects They arent trivial, well beyond injection site swelling and redness
Skin elasticity and firmness: The skin literally thickens due to increased collagen and elastin in the dermis
In addition, background references (where appropriate) included menopause, estrogens, women, skin aging, natural products, phytochemicals, polyphenols, and/or combination(s) thereof (without a year-limit range)
it invalidates the entire premise of your research