CBDA (Cannabidiolic Acid)
Also known as: Cannabidiolic Acid, CBDa, Raw CBD
Pronunciation: /kan-uh-bih-dye-OL-ik AS-id/
CBDA is the raw acid form of CBD that the living hemp plant actually produces. Heat strips off one carboxyl group and turns it into CBD.
The plant doesn't make CBD directly. It makes CBDA, and decarboxylation — heat plus time — converts it. That is why a finished CBD oil is made from decarbed extract: the milligrams on the front of the bottle are only meaningful if they describe CBD that already exists, not CBD that would exist after heating.
Labs report CBD and CBDA on separate lines, then calculate Total CBD = CBD + (CBDA x 0.877). The 0.877 is the weight lost when the carboxyl group leaves, so 100 mg of CBDA can only ever become 87.7 mg of CBD. If a product's Total CBD figure sits far above its CBD figure, most of what you're buying is still CBDA.
CBDA is getting real research attention. A 2025 study in the International Journal of Pharmaceutics found CBDA absorbed far better than CBD in cell and mouse models. That is interesting, and it is not human evidence. CBDA also drifts toward CBD as a bottle ages and warms, which makes a stable label dose hard to promise. Our oils are decarbed; whatever CBDA didn't convert shows up as its own line on the batch COA.
Related terms
- CBD (Cannabidiol)CBD is one of more than 100 naturally occurring compounds called cannabinoids found in the hemp plant. Unlike THC, CBD does not produce a 'high.'
- DecarboxylationDecarboxylation is the process of converting raw cannabinoid acids (like CBDa) into their active forms (like CBD) by applying heat.
- COA (Certificate of Analysis)A COA is a document from an accredited third-party lab certifying what is — and isn't — in a CBD product.
- CannabinoidCannabinoids are a class of chemical compounds found in the cannabis plant. The plant contains more than 100 of them.
- THCA (Tetrahydrocannabinolic Acid)THCA is the raw, non-intoxicating acid form of THC that the living hemp plant actually produces. Heat converts it into delta-9 THC.