Delta-8 THC, HHC & Co.: Synthetic Cannabinoids and the Legal Situation

In recent years, new cannabis-like substances have entered the market operating in a legal grey area: Delta-8-THC, HHC (hexahydrocannabinol), HHCP, THC-O and others. These compounds are often marketed as "legal" – but is that true? And what does science know about their safety?

## What Is Delta-8-THC?

Delta-8-THC (delta-8-tetrahydrocannabinol) is a naturally occurring, psychoactive cannabinoid that forms in very small quantities in the cannabis plant. It is an isomeric derivative of delta-9-THC – the "classic" THC. The designation "delta-8" vs. "delta-9" refers to the position of a double bond in the molecule.

Effects: Delta-8-THC is psychoactive but, according to user reports and early studies, slightly weaker than delta-9-THC. Some describe the effect as clearer and less anxiety-inducing. However, almost no clinical data is available.

Production: Since delta-8-THC occurs only in trace amounts in natural plants, it is mostly produced synthetically from CBD (which is abundant in hemp plants) through a chemical reaction (isomerisation). This raises questions about purity and possible contaminants.

## What Is HHC (Hexahydrocannabinol)?

HHC is also a THC derivative in which the double bonds in the THC molecule are saturated through hydrogenation (adding hydrogen). The result is a more stable compound that was not originally named in the KCanG or BtMG.

Effects: HHC has psychoactive properties similar to THC but with a somewhat different profile. Some users report stronger stimulating effects. Clinical studies are almost entirely absent.

Variants: There are several HHC forms: HHCPO, HHCP, HHC acetate and others. Each variant has a slightly different molecular structure and potentially different effects and risks.

## Legal Situation in Germany: Grey Market

The legal classification of these substances in Germany is complex:

BtMG (Narcotics Act): The BtMG lists specific compounds. Delta-8-THC and HHC were not originally explicitly listed – which is why dealers argued they were legal.

KCanG (from April 2024): The KCanG primarily regulates natural cannabis. Synthetic derivatives may or may not fall under it depending on molecular structure.

Analogue clause: The BtMG contains a so-called analogue clause (§ 2 para. 3), which covers substances comparable in chemical structure to listed narcotics. Delta-8-THC is sufficiently similar to THC to potentially fall under this clause.

Current case law: Courts and authorities have reached different assessments. In some federal states, dealers have been prosecuted; in others, not. The legal situation is inconsistent and evolving.

BlattWerk recommendation: This legal uncertainty alone is a good reason to avoid delta-8-THC, HHC and similar products.

## Safety Risks: Unknown Territory

Beyond legal uncertainty, there are concrete health concerns:

Lack of purity: Since these substances are often chemically synthesised from CBD, reaction by-products and contaminants can remain in the final product. A 2021 analysis found problematic by-products and unknown compounds in many examined delta-8-THC products.

No standardised tests: For natural cannabis in Germany, clear testing requirements exist (KCanG). For synthetic cannabinoids, such standards are absent on the grey market.

Unknown long-term effects: THC and CBD have been researched for decades. Delta-8-THC, HHC and variants are new substances – long-term studies do not exist.

Drug interactions: Since barely any research exists, possible interactions with medications are unknown.

## Conclusion: Avoid Synthetic Cannabinoids

As a Cannabis Social Club, we clearly recommend: natural cannabis from licensed cultivation with known quality is preferable to synthetic cannabinoid derivatives in every respect. The legal risks, the lack of quality control and the absence of research speak clearly against them.

Anyone wishing to use cannabis for enjoyment or to relieve complaints will find a safer and more reliable option in natural cannabis – with a known cannabinoid and terpene profile from verified cultivation.