Calculate that you'll be taking one capsule in the morning and one in the evening. This means that you'll need 60 capsules every 4 weeks (1 month). Alternately, you can choose to receive 120 capsules every 8 weeks (2 months).

As for drops, you'll take five drops in the morning, and five in the evening, which means that every 8 weeks you'll want a bottle containing 1 fluid ounce, or 30ml, of BioSil® liquid.

For HerHarmony, a tub contains 30 servings, you take one a day.

As for the Hair Growth Formula, the bottle contains a 30 day supply.