THC vs. CBD: Understanding the Difference

By Siam Green · · Updated 29 June 2026
THC and CBD molecular structure diagram with cannabis leaves

Quick answer

THC is intoxicating; CBD is not. Both are cannabinoids that act on the body’s endocannabinoid system, but THC is psychoactive and CBD is non-intoxicating. In Thailand, THC flower and edibles are available from licensed dispensaries with a doctor’s prescription, and CBD products under 0.2% THC are widely available without one.

Key facts

Siam Green has 5 licensed branches in Thailand: Phrom Phong, Silom, Nana, Chinatown, and Koh Samui (Chaweng).


You’re standing in a dispensary in Bangkok, staring at product labels covered in acronyms. THC. CBD. Percentages. Ratios. The budtender asks, “What are you looking for?” and you freeze.

Sound familiar?

If you’re new to cannabis, THC and CBD can seem like a foreign language. But understanding the difference is the key to finding products that actually work for what you need. No BS straight to the point. **
The One-Sentence Answer
**THC is intoxicating. CBD isn’t.

That’s the simplest way to understand it. But knowing the details will completely change how you shop for cannabis.

**What Are They?
**Both THC (tetrahydrocannabinol) and CBD (cannabidiol) are cannabinoids, natural compounds found in cannabis. They interact with your body’s endocannabinoid system, which regulates mood, sleep, pain, and appetite.

Think of them as cousins. Same family, totally different personalities.

THC is the psychoactive compound that creates euphoria, alters perception, and makes you feel “high.” It’s why cannabis has been illegal in most places for decades.

CBD is the non-intoxicating compound that does not alter your state of mind. You stay completely clear-headed.
How THC Feels

Let’s be real about what happens when you consume THC.

Your senses might feel heightened. Music sounds better. Food tastes incredible. Time might slow down. You might feel giggly, creative, or deeply relaxed. Some people get energized, others sink into the couch.

Common effects:

The downside: Too much THC can trigger anxiety, paranoia, or discomfort. It impairs coordination and memory. If you have responsibilities, being high isn’t ideal.

How CBD Feels

CBD doesn’t feel like much at all, and that confuses people.

There’s no high. No euphoria. No giggles. You stay completely sober.

So what’s the point? CBD works subtly. People describe it as “taking the edge off” or feeling like their shoulders finally drop. It’s not dramatic, but it’s noticeable.

Common effects:

The appeal: You can use CBD and still work, drive, or handle any responsibilities that require full mental clarity.
Can You Mix Them?

Absolutely. Products with both THC and CBD are associated with the “entourage effect.” CBD can soften THC’s intensity, which some users find makes the experience more comfortable.

You’ll see products labeled with ratios:

In Thailand, these balanced products require FDA approval as they may contain THC extracts above 0.2% concentration, and a medical prescription is required. Some users prefer balanced products because they keep psychoactive effects mild.

Thailand’s Laws

In Thailand, things work differently.

THC products (cannabis flower & edibles) are legal to purchase with a prescription from a licensed medical practitioner. Many dispensaries like Siam Green have licensed doctors on-site to make this quick and easy.  

CBD products with less than 0.2% THC are legal and widely available without a prescription, but it is better to play safe and choose a license dispensaries than regret later. 

Which Should You Try First?

Start with CBD if:

Try THC if:

Consider balanced products if:

Finding the Right Dose
If you choose THC or CBD, start with a small dose and wait.

For CBD, give it a few days of consistent use. For THC, especially edibles, be patient. Wait at least 2 hours before taking more. You can always take more, but you can’t un-take it.

Where to Find THC and CBD in Thailand

Siam Green Cannabis Co has 5 licensed locations in Thailand:

Our licensed doctors and staff can answer your questions about THC and CBD safely and legally.

Come say hi.

Drop into the nearest branch. We're better in person.

See all five branches →