Studies show that B12 has a role in keeping nerves healthy and supporting brain function when someone has a deficiency
Look for this as an added ingredient it is a good sign that the manufacturer is thinking about bioavailability, not just label claims

But Ritual's real value is that it pairs NAC with two other ingredients commonly discussed in reproductive health research: Myo-inositol: 2,000mg Myo-inositol plays an important role in cellular signaling, ovarian function, and insulin regulation, making it one of the most extensively studied supplements in female reproductive health.50 51 While much of that research has focused on women with PCOS, myo-inositol has also been investigated for ovulation support, egg quality, and fertility outcomes in broader reproductive-health settings.49 Clinical reviews suggest myo-inositol may improve ovulation, menstrual regularity, and certain metabolic markers, though results vary by population and outcome measured.52 Ritual provides 2,000mg per serving, which aligns with commonly studied dosing, though some fertility protocols use 4,000mg daily, often divided into two doses
TB-500 operates through a fundamentally different molecular mechanism centered on cytoskeletal regulation