Full-spectrum CBD oil: why is it so widely chosen?

CBD isolate is purified to 99 % and above, with no other cannabinoid or terpene, and no flavour. It is the option favoured by athletes subject to anti-doping controls, WADA having removed only CBD from its list of prohibited substances. Broad spectrum keeps a rich cannabinoid profile but strips out the THC by filtration. Full spectrum retains the whole plant matrix, traces of THC included, within the legal limit of 0.30 % of the finished product.

Three points come up repeatedly in feedback from French users. Aromatic richness first: the terpene profile may include myrcene, limonene, linalool or beta-caryophyllene, the same molecules found in hops, citrus fruits or lavender. The secondary cannabinoid profile next, with CBG, CBN and CBC, which are the subject of early research but carry no health claim validated by the European authorities. Finally the presumed entourage effect, a hypothesis formulated by Raphael Mechoulam in the 1990s, according to which cannabinoids and terpenes would act in synergy. The preclinical literature sees a plausible argument there, but its translation into a measurable clinical effect in humans remains insufficiently demonstrated.

Supercritical CO2 is the dominant method, clean and free of residual solvent, and it preserves most of the heat-sensitive terpenes. Ethanol extraction gives a different aromatic profile and calls for rigorous purification. Cold artisanal extraction, practised by a few producers, remains marginal in volume. The most objective criterion for judging an oil is still an independent laboratory analysis showing the actual profile of the batch.

Check the hemp variety listed in the common catalogue, the documented geographical origin, the extraction method set out explicitly, a batch number tied to an independent certificate of analysis, and a measured THC content below the legal threshold of 0.30 %. In 2024 the DGCCRF recorded around 15 % non-compliance across more than 1,200 inspections, mainly linked to misleading claims and to the presence of banned cannabinoids.

A full-spectrum oil contains traces of THC and may trigger a positive saliva test at the wheel, as the Cour de cassation confirmed in its ruling of 21 June 2023. Athletes subject to anti-doping controls should favour an isolate certified free of THC. Since 15 May 2026, oils sold as food supplements have been withdrawn from the market without European Novel Food authorisation; oils for cosmetic or external use remain marketable. Our CBD buying guide sets out these verification criteria in detail.

CBD is not a medicine. In case of medical symptoms, consult a healthcare professional.

What is the difference between full spectrum and broad spectrum?

Full spectrum retains the traces of THC (≤ 0.30 %); broad spectrum has removed them by filtration. The minor cannabinoid and terpene profile is retained in both cases.

Is the entourage effect scientifically proven?

It is a plausible hypothesis supported by preclinical work, but its translation into measurable clinical effects in humans remains insufficiently demonstrated to ground a health claim.

Is a full-spectrum oil stronger than an isolate?

Not in mg of CBD: both can contain the same quantity of cannabidiol per bottle. The difference lies in the presence of other plant compounds.

Why is the taste more pronounced than with an isolate?

Because the terpenes and the plant wax are retained in full spectrum. Isolate, purified to 99 %, stays neutral in taste.