It really depends on the dosage that your practitioner is recommending. Typically the 2oz. “Botanical or Homeopathic tincture” bottles will last for approximately a month, again depending of course on the dosage recommended. The nutritional bottles, again depending on dose, will typically last for approximately a month.
Initially your practitioner may ask you to take more than is typically recommended on the label for therapeutic purposes. As you progress your dosages will likely be reduced.