When you buy CBD oil online from Cannabiva and Zero High you'll notice a variety of cannabidiol strengths are available. The numbers you see on the front label of your bottle detail the strength, or concentration, of CBD in each bottle and dose.  The guide below will help you determine which strength of CBD oil is right for you.  Cannabiva Brand CBD Oils Your Cannabiva CBD oil bottle will contain 30 doses (30 milliliters) of CBD oil, with each dropperful dose measuring 1 milliliter (mL) 750MG Regular strength full spectrum and broad spectrum formulations are 750MG, which means there are 750 milligrams of CBD per bottle. Each bottle contains 30 x 1mL doses, and each dose contains 25 milligrams of CBD. 1500MG Extra strength Cannabiva CBD oils are 1500MG, which means there are 1,500 milligrams of CBD per bottle. Each bottle contains 30 x 1mL doses, and each dose contains 50 milligrams of CBD. 3000MG Super strength Cannabiva CBD oils are 3000MG, which means there are 3,000 milligrams of CBD per bottle. Each bottle contains 30 x 1mL doses, and each dose contains 100 milligrams of CBD. 6000MG Hyper strength Cannabiva CBD oils are 6000MG, which means there are 6,000 milligrams of CBD per bottle. Each bottle contains 30 x 1mL doses, and each dose contains 200 milligrams of CBD. 12000MG Maximum strength Cannabiva blends are labeled as 12,000MG, meaning they contain 12,000 milligrams of cannabidiol per bottle. Each bottle contains 30 x 1mL doses, and each dose contains 400 milligrams of CBD. Zero High Brand Pure Isolate CBD Oils Your Zero High CBD oil bottle will contain 30 doses (30 milliliters) of CBD oil, with each dropperful dose measuring 1 milliliter (mL) 500MG Original strength Zero High formulations are 500MG, which means there are 500 milligrams of CBD per bottle. Each bottle contains 30 x 1mL doses, and each dose contains 17 milligrams of CBD. 1000MG Extra strength Zero High formulations are 1000MG, which means there are 1,000 milligrams of CBD per bottle. Each bottle contains 30 x 1mL doses, and each dose contains 33 milligrams of CBD. 2500MG Super strength Zero High formulations are 2500MG, which means there are 2,500 milligrams of CBD per bottle. Each bottle contains 30 x 1mL doses, and each dose contains 83 milligrams of CBD. 5000MG Hyper strength Zero High formulations are 5000MG, which means there are 5,000 milligrams of CBD per bottle. Each bottle contains 30 x 1mL doses, and each dose contains 167 milligrams of CBD. 10000MG Maximum strength Zero High formulations are 10000MG, which means there are 10,000 milligrams of CBD per bottle. Each bottle contains 30 x 1mL doses, and each dose contains 333 milligrams of CBD.