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Hexahydrocannabinol (HHC) has been a major topic of conversation in the European cannabis scene. With effects similar to THC, many saw it as the new “legal alternative.” But is it actually legal in Spain? At Growbarato.net, we have taken it upon ourselves to clearly explain the legal status of HHC in 2025.
What is HHC and how is it produced?
HHC (hexahydrocannabinol) is a synthetic cannabinoid found naturally in the cannabis plant, albeit in minimal concentrations. The version that was marketed was almost always obtained in a laboratory through a hydrogenation process: hydrogen atoms are added to CBD (or in some cases THC), which modifies the molecular structure and alters both the potency and stability of the compound.
From a chemical standpoint, HHC bears a great similarity to Delta-9 THC, but hydrogenation introduces small differences that alter both its potency and how it acts on the endocannabinoid system. For this reason, many describe it as having an intermediate effect: not as mild as CBD, but not as intense as THC.
Is HHC legal in Spain?
No, HHC was included in the list of controlled substances via provision 8109 of the BOE (No. 97), published on April 22, 2025. The Ministry of Health updated the list of controlled substances to include HHC and several of its synthetic derivatives (HHC-P, HHC-O, THC-O, among others).
What the BOE says exactly
The provision expands Annex I of Royal Decree 2829/1977 (list of narcotic and psychotropic substances) to include hexahydrocannabinol and its isomers. The Ministry’s reasoning is based on three arguments:
- Psychoactive effects comparable to THC, with demonstrated potential for abuse.
- Alignment with European regulation: Germany, France, Poland, and other EU countries had already banned it between 2022 and 2024.
- Absence of long-term safety studies, which triggers the precautionary principle regarding public health.
Before the ban: the gray area of HHC
For nearly two years, HHC circulated in Spain in a legal gray area: since it did not appear on any official list of prohibited substances, its commercialization was tolerated. This made it what many called “legal THC”: similar psychoactive effects, without the formal restrictions of traditional cannabis.
Why is HHC no longer legal in Spain?
The factors that have made HHC no longer legal in Spain:
- Health concerns: although there are no specific studies in Spain, negative effects of HHC have been reported internationally.
- Alignment with Europe: many EU countries had already banned it.
- Lack of safety studies: not much is known about the long-term effects of HHC.
What are the consequences of possessing HHC now?
Difference between possession and trafficking
The ban on HHC legally equates it to other substances in Annex I. In practice, the difference between an administrative sanction and criminal consequences depends fundamentally on the quantity and the context:
- Possession for personal use (small quantity, no signs of sale): this is treated as an administrative infraction under Organic Law 4/2015 on Citizen Security, with fines that can range from €601 to €30,000, in addition to the seizure of the product.
- Trafficking, sale, or distribution: this falls under the scope of the Penal Code (arts. 368 et seq.), with prison sentences of one to three years for substances that do not cause serious harm to health, and three to six years if it is considered that they do.
Can you be sanctioned for products you bought before April 22?
Technically, the law does not have retroactive effect on purchases made before the ban. However, possession as of April 22, 2025, can indeed lead to sanctions, regardless of when the product was acquired. The general recommendation from legal experts is not to keep stock or consume them.
HHC vs THC vs CBD: How do they differ in the eyes of Spanish law?
Unlike CBD, which remains legal in Spain as long as it contains very low levels of THC (<0.2%), HHC has ended up in the crosshairs for being quite similar to THC. While CBD does not alter perception, HHC does generate psychoactive effects, which has led to it being considered a substance with potential risk to public health.
This similarity to THC, which has been banned in Spain for years except in highly controlled medical contexts, has been one of the main arguments for including HHC in the list of prohibited substances.
Added to all this is a key problem: the lack of serious, long-term research on its safety. Health authorities, having no clinical data or trials to support its use, have chosen to apply the precautionary principle.
| Characteristic | HHC | THC | CBD |
|---|---|---|---|
| Legal status (2025) | Prohibited (HHC is not legal in Spain since April 2025) | Illegal (except in controlled medical contexts) | Legal (if it contains <0.2% THC) |
| Psychoactive effects | Yes, it generates effects similar to THC | Yes, it is the main psychoactive component | No, it does not alter perception (“non-psychoactive”) |
| Similarity to THC | Very similar, analogous chemical structure | – | Different structure, opposite effects in some cases |
| Legal concerns | Potential risk to public health due to its psychoactive effects and lack of safety studies. | Only in strictly regulated medical contexts | None significant if it complies with permitted THC levels |
| Main legal use | None as of 2025 | Only in strictly regulated medical contexts | Wellness, supplements, cosmetics |
| Scientific research on safety | Limited | Extensive, but its illegality limits certain research | Extensive and ongoing, with interest in its therapeutic benefits |
Legal alternatives to HHC and THC in Spain
With its ban in effect since April 2025, meaning HHC is no longer legal in Spain, it is normal for many users to ask: what legal alternatives exist in the current landscape? There are still interesting options within the Spanish legal framework:
CBD
CBD has established itself as the legal star of the cannabis world in Spain. Unlike THC and the now-banned HHC, CBD is not psychoactive, meaning it does not alter perception or produce the “high” associated with traditional cannabis.
Terpenes
Although they are not cannabinoids, terpenes are aromatic compounds present in cannabis and many other plants. They are responsible for the characteristic smell and taste of different cannabis varieties and are believed to potentially have therapeutic effects without being psychoactive.
10-OH-HHC
10-hydroxyhexahydrocannabinol is a natural metabolite of HHC with a different molecular structure. Its effects are described by users as similar to the original HHC, with a slightly slower onset curve. As of April 2025, it is not included in any list of prohibited substances in Spain.
HEC-10
Hemp-derived hexahydrocannabinol is a formulation derived from industrial hemp, with high concentration and effects reminiscent of HHC. It is also not currently regulated.
Differences between HHC, HHC-P, and HHC-O
| Compound | Estimated potency vs THC | Legal status in Spain (2025) |
|---|---|---|
| Standard HHC | ~70-80% of THC | Prohibited since 04/2025 |
| HHC-P (hexahydrocannabiphorol) | ~30x more potent than HHC | Prohibited (included in the same provision) |
| HHC-O (HHC acetate) | Higher bioavailability than HHC | Prohibited (included in the same provision) |
| THC-O | Similar to Delta-9 THC | Prohibited (same BOE provision) |
| 10-OH-HHC | Similar to HHC, different molecule | Legal as of publication date |
| HEC-10 | Hemp-derived | Legal as of publication date |
How much do HHC alternatives cost?
One of the factors users look for most before buying. These are the current ranges in the Spanish market:
| Format | Quantity | Approximate price |
|---|---|---|
| 10-OH-HHC / HEC-10 flowers | 1 g | €7 – €12 |
| 10-OH-HHC / HEC-10 flowers | 2.5 g | €15 – €25 |
| 10-OH-HHC / HEC-10 flowers | 5 g | €30 – €45 |
| Hash / resin | 5 g | €15 – €30 |
| Disposable vape | 1 ml | €20 – €30 |
| Disposable vape | 2 ml | €30 – €45 |
| Gummies / edibles | 10 units | €15 – €25 |
| High-concentration CBD flowers (30-40%) | 1 g | €6 – €10 |
Prices vary depending on brand, concentration, and sales channel. Buying in specialized stores with available laboratory analyses guarantees better quality and safety.
Does the HHC substitute test positive in a drug test?
This is the most common question and the one that generates the most uncertainty. The honest answer is: possibly yes.
The saliva tests used by the DGT (General Directorate of Traffic) and rapid detection kits identify cannabinoids generically via immunoassay; they do not distinguish between THC, HHC, or their derivatives. 10-OH-HHC and HEC-10 produce metabolites that can trigger that test.
- Rapid saliva test (DGT): high risk of false positive.
- Urine analysis: similar risk, as cannabinoid metabolites are detected nonspecifically.
- Laboratory blood analysis: more specific, but not all forensic laboratories have standardized protocols for these compounds yet.
How to buy HHC alternatives online safely?
If your intention is to buy HHC online and you have reached this point, you already know that HHC itself is no longer a legal option. What you can buy are its legal alternatives (10-OH-HHC, HEC-10, high-concentration CBD), and doing it right requires taking into account some key factors.
What certifications and analyses the product should have
A serious store should be able to offer you:
- Certificate of Analysis (COA) from an independent laboratory: confirming the exact composition of the product, absence of heavy metals, pesticides, and that THC is below 0.2%.
- Origin of the hemp: preferably European and with a registered industrial hemp certificate.
Exact concentration declared on the label: without ambiguous ranges like “high concentration.”
Medicinal Cannabis: a regulated path (with THC)
It is important to mention that in Spain there is a regulatory framework for medicinal cannabis, although access is limited and strictly controlled under medical prescription for certain specific conditions.
What about you? What do you think about this new regulation? How do you think it will affect the legal cannabis landscape in Spain? Leave us your comment and share your opinion!
