How do I determine the strength of a CBD oil?

Since there are so many different CBD manufacturers on the market, there is also a wide variation in how their products are labeled. That is why sometimes it’s hard to determine the strength of the CBD oil. Let’s look at a few important things that can help you answer the question: How do I determine the strength of a CBD oil?

Select trusted brands and ask for a Certificate of Analysis

Firstly, the most important thing is that you buy your CBD oil from a trusted manufacturer. Try to find a company that sells products that are routinely tested and that can provide you with a Certificate of Analysis (CoA), which reveals the amounts of cannabinoids in the product. In other words, the CoA indicates the potency of the product – it tells you how much CBD is in it. It also gives another very important piece of information – the level of unwanted THC, which is typically below 0.2%, or sometimes even below 0.05%.

In addition to these two compounds, a typical CoA includes information about the levels of other phytocannabinoids, such as the acidic forms THCA, CBDA, and others like CBN, CBG, and CBDV. This means that the results on the CoA are valid, reliable and confirm the high quality of the tested product. You can check one of our previous blogs where we talk about everything you need to know when buying CBD products.

Types of CBD

The products can also vary in strength because they contain different types of extracts:

“CBD isolate” is a very pure (over 98%) compound that is produced from hemp biomass extract, which is further processed to produce this natural isolate. No other cannabinoids are seen on the CoA in the case that a product is made with isolate.

“Full-spectrum CBD” contains various phytocannabinoids, such as CBD, CBN, CBG, CBDV, and other compounds found in the hemp plant, including fatty acids, terpenes, and flavonoids. So, other cannabinoids are also seen on the CoA if the product is made with full-spectrum extract.

For example, all PharmaHemp CBD drops contain full-spectrum extract, so the given potency of the CBD is standardized to the CBD content. The content of other cannabinoids can vary due to natural variations in the hemp plant.

Labeling of the products

Every CBD product should also have strength information labeled visibly on the product. Additionally, some manufacturers label the CBD strength in mg while others label it in %. For a clearer understanding of the labeling, we have prepared a table for you.


For example, if you buy a 10 ml bottle of 5% CBD drops you will get 500 mg of CBD in one bottle. If you are wondering how much CBD you should take at once, head to our blog where we explain everything about CBD dosing.


Finding the right CBD products for you can feel overwhelming, but don’t let the numbers deter you from jumping in and experiencing the restorative power of CBD oil. Good brands will make all this information, their practices, processes, and the source of their ingredients available. Their team will have backgrounds in science, experience with hemp plants, and food-manufacturing know-how.

At Pharmahemp we are rewarding our loyal customers with special offers and launches of new products. You can follow us on our social media and website for all updates. For any questions regarding the manufacturing process, quality control and final products, do not hesitate to contact us at