Buying for someone else
Start with age and routine, not with price
If you are choosing for a father, partner or friend, the second question after age is swallowing difficulty. A 50-plus formula with a large tablet count may go unfinished, which wastes the money regardless of quality. Ask first; the pack size choice follows from the answer.
GNC Mega Men 50 Plus and Centrum Silver Men 50+ both come in tablet form, and pack sizes vary by listing. A smaller pack that gets finished beats a large one that sits in a drawer. That is the whole calculation — nothing here requires a special product, only a formula that will actually be taken.