A CBD tincture should last you 1 month following the steps below.
If you use the dropper provided by each of the CBD tinctures, you can use the CBD accordingly.
At 1ml a day the tincture will last for 1 month.
This can be done with a 0.5ml in the morning and 0.5ml before going to bed.
Our CBD tincture measurements per 1ml and 0.5ml can be found here.
At 2ml a day, the tincture will last you 15 days.
If you are using this much, it is recommended that you attain a tincture with a higher CBD mg content so your supply will last for at least 1 month.
For appropriate steps on taking more or less CBD please read these suggested guidelines.