HHC vs THC, what are the differences?
- Funcaps
- Blogs about research chemicals
- 14 Mar 2025
- 2views
- Reading time: 3 minutes

THC is the psychoactive compound in cannabis and has been extremely popular for years due to its intense psychedelic effects. However, a relatively new cannabinoid has entered the market: HHC. While HHC produces effects similar to THC, it is much milder in nature. Additionally, HHC is legal and classified as a semi-synthetic compound.
Curious about the differences between HHC and THC? Keep reading to discover what sets them apart.
HHC vs. THC: Key differences
THC is the most well-known psychoactive substance in cannabis, widely used for its potent psychedelic effects. Recently, HHC has been gaining traction as an alternative. While both compounds share similarities, there are notable differences in terms of:
- Chemical structure
- Side effects
- Psychoactive effects
- Legality
- Production process
- Dosage and duration
Chemical Structure: Small difference, big impact
On a molecular level, THC and HHC are quite similar. THC has the chemical formula C21H30O2, whereas HHC is C21H32O2. The main difference? HHC contains two additional hydrogen atoms and lacks the double bonds found in THC.
This small structural variation has a significant impact on how each compound behaves in the body. The extra hydrogen atoms make HHC more chemically stable, which may influence its duration of effects and detectability in drug tests.
Side effects: Which one is easier to tolerate?
Since THC is more potent than HHC, its side effects tend to be stronger as well. Mild side effects of HHC:
- Dry mouth
- Light dizziness
- Fatigue
Potentially stronger side effects of THC:
- Increased appetite
- Red eyes
- Fatigue
- Impaired motor coordination
- Reduced focus
- Anxiety or paranoia
Psychoactive effects: How do HHC and THC compare?
When comparing the effects of THC and HHC, the biggest distinction is intensity.
- THC delivers a powerful psychoactive experience, often leading to a strong high or stoned feeling.
- HHC produces a much milder, more controllable experience, with effects such as:
- Relaxation
- Mild euphoria
- A general sense of well-being
Because HHC is less intense, it appeals to users who want the benefits of cannabinoids without the overpowering high. Meanwhile, THC is more effective for pain relief and mood enhancement.
Legality
One of the biggest advantages of HHC is its (current) legal status in many countries.
- THC is classified as a controlled substance in most countries. For example, in the Netherlands, it is illegal to sell, but possession of up to five grams is not penalized.
- HHC exists in a legal gray area. While it is legal in the Netherlands, some European countries have already banned it due to the lack of long-term research on its effects.
Important: Laws regarding HHC can change quickly, just like they did for other new cannabinoids in the past. Always check local regulations before purchasing.
Production process: Natural vs. semi-synthetic
Another key distinction is how these substances are produced:
- THC is naturally derived from cannabis plants and extracted directly.
- HHC is found in very small amounts in cannabis, so it is mainly synthesized in labs through a process called hydrogenation. This makes it a semi-synthetic compound.
Because of these production differences, HHC is commonly found in vapes and edibles, whereas THC is traditionally associated with weed and hash.
Dosage and duration
Due to THC's strong effects, its recommended dosage is lower compared to HHC.
THC dosage:
- Beginners: 5 – 10 mg
- Effects begin 30 min – 2 hours after consumption
- Duration: several hours
HHC dosage:
- Beginners: 10 mg
- Experienced users: up to 25 mg
- Effects begin after 1 hour
Both HHC and THC are slowly broken down by the body and can remain detectable in drug tests for days to weeks. Important: HHC is not separately tested in standard drug screenings. Since it is structurally similar to THC, you may test positive for THC even if you only consumed HHC. Read more about THC in your blood and urine.
HHC vs THC: Which one should you choose
The choice between THC and HHC depends on your personal preferences and goals.
- Looking for a strong, high and potent effects? → THC is the better option.
- Prefer a milder, more manageable experience? → HHC offers a gentler alternative.
- Need a legal option? → HHC may be better, but check local laws first.
While HHC is a promising alternative, research on its long-term effects is still limited. Stay informed and always make a well-informed decision!