RELUMINS Advance White 1650mg Glutathione Complex with Hyaluronic Acid + Vit C AActive Ingredients: Vitamin E (as DL-a-Tocopheryl Acetate) 22.5mg, Riboflavin (Vitamin B2) 8mg, Selenium (from 3.75mcg Selenomethionine) 1.5mcg Proprietary Whitening Blend (1622mg) consisting of L-Glutathione, Green Tea 4:1 Extract, L-Methionine, Rose Hips, Hyaluronic Acid, Alpha Lipoic Acid, Milk Thistle Seed 4:1 Extract, Citrus Bioflavonoid Complex (from Orange, Lemon, and Grapefruit Peel), Bitter Orange Fruit Extract (40% Hesperidin), Sophora Japonica Bud Extract (95% Quercetin Dihydrate), Soy Bean Extract (40% Isoflavones)Additional Ingredients: Vegetable Cellulose (Capsule), Magnesium Stearate, Silicon Dioxide, Microcrystalline Cellulose Allergen: Contains Soy Take 2-3 capsules per day or as directed by your physician Indications: As with all supplements pregnant and nursing mothers should consult their physician

Probiotic support : Some evidence suggests that probiotics might help restore healthy microbial balance, though evidence is limited and inconsistent
doi: 10.1016/J.BRAINRES.2015.09.035 26 ShahMVellaA
In fact, one study demonstrated that over 60% of gastrointestinally ill cats (don't bother looking that word up..it's my invention) suffer from some degree of Vitamin B12 deficiency
A variety of different types of studies led me to that conclusion