careddi tells you how CBD oil is made

You may be aware of the various health benefits of CBD oil, but most of us know very little about the production of this substance and what we should know before we choose to use the product. Whether ingested or used topically, CBD oil is made using several different processes. To boot, it can even be different colors and contain contaminants, depending on the way the cannabis plant used to make it is grown.

As you can imagine, these are all important considerations before making a purchase. Here's a look at how CBD oil is made and what to consider when evaluating CBD products.

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CBD Whole Herb Extraction Methods
When looking at how CBD oil is manufactured, one method is called "whole plant extract" (also known as "full spectrum"). This means that when the oil is made, it contains not only CBD, but also certain levels of THC, as well as other cannabinoids and terpenes from the cannabis plant, which are anti-inflammatory agents in the plant. Often, the whole plant is the more popular choice. Studies have shown that full-spectrum CBD oil is more effective than isolated CBD oil in treating inflammation (more on this later).

Isolation Methods
In contrast, the isolation method means that the extracted CBD oil contains only CBD (i.e., no terpenes, fatty acids or other cannabinoids). Some people may prefer this method for one simple reason: because it does not have any levels of THC, CBD oil produced by the isolation method can be considered a less risky option for anyone who does not wish to use THC in their system. (This is highly unlikely, but for those who are very cautious, isolation may be a good option.)

Carbon Dioxide Extraction
To make the oil itself, the supercritical CO2 process is the most expensive and purest method. This new process uses liquid carbon dioxide (rather than chemicals) as a solvent, and it is often used in other commercial extraction processes in the food industry, especially for making coffee and omega-3 oils.

Ethanol extraction
This extraction method is the most common. Basically, ethanol is used as a solvent to remove CBD from the cannabis plant. The advantages are that it is faster,it’s less power intensive than the CO2 method and it requires inexpensive equipment. The downside? Ethanol is very flammable, so the process requires certain precautions.

Color Options
In addition to the way the CBD oil is made, the color can vary depending on the type of oil. Filtered oil is yellow or gold in color and is considered to be of the highest quality (meaning it can also be more expensive). Decarboxylated oil is heated to "activate" the healing properties of CBD and is known for being extremely effective. It is usually more of an amber or brown color. Crude oil is usually dark or greenish because it is not filtered and still contains plant fiber and chlorophyll.

Things to Consider Before Buying
The most important factor when choosing CBD oil is not necessarily the way it is made and the process used. The most important thing is how the cannabis plants are grown and what contaminants, if any, they contain. Although several states have legalized CBD, there are still few regulations to protect consumers. Knowing if topical application or ingestion is right for you, how much THC and CBD is in the product, and what testing has been done on the final product are some of the key things you should make sure you know before choosing a CBD oil.

Natasha Burton writes for Women's Health, Livestrong, MSN, Cosmopolitan and Women's Day, as well as other print and online publications. She is also the author of five books, including "101 Tests for Couples" and "The Little Black Book of Big Red Flags.