Christina spent weeks researching skin-safe metals. She discovered that 316L medical-grade stainless steel - used in surgical implants - would deliver continuous LI4 contact for many years.
She built a prototype Vitality Ring with four internal magnets seated into the band. The ring was so thin she would forget it was there, yet pressed the LI4 point continuously all day and night.
She tested it first. On day 3, she opened her Migraine Buddy chart and froze: