Vegetarian or vegan diet (low in natural B12 sources)
10.1111/j.1364-3703.2011.00715.x 29 De VosM.Van OostenV
Compounded oral and topical protocols formulated to support thicker, fuller hair over 3 to 6 months
A notable double-blind RCT in 262 elderly subjects found that NAC (600 mg twice daily) for 6 months significantly reduced influenza-like episodes only 25% of NAC-treated subjects who seroconverted to influenza A developed clinical symptoms, compared to 79% of placebo subjects (De Flora et al., Eur Respir J, 1997) [40]
The flavor may weaken if you go much past 12 months, though
How to evaluate "liposomal" supplements: practical tips To avoid misleading products, use these science-backed, actionable steps: Question the need for liposomes: Not all ingredients benefit from liposomal delivery