What Is THC and CBD?

A Beginner’s Guide to Cannabinoids and Cannabis Seed Genetics

When browsing cannabis seeds, you’ll often see terms like THC and CBD — but what do they actually mean? Whether you’re collecting for research, preserving rare strains, or just expanding your knowledge, understanding these two major cannabinoids is essential.

At Loud Genetics, we’ve created this clear, beginner-friendly guide to help you understand THC, CBD, and how they affect strain selection and seed choice — all while staying compliant with UK law.

⚠️ Disclaimer: Our cannabis seeds are sold as souvenirs and for genetic preservation only. Germination or cultivation is illegal in the UK without a government-issued licence.

🌿 What Are Cannabinoids?

Cannabinoids are naturally occurring chemical compounds found in the cannabis plant. They interact with the body’s endocannabinoid system (ECS) — a network of receptors that helps regulate mood, memory, pain, sleep, and more.

Two of the most well-known cannabinoids are:

  • THC (Tetrahydrocannabinol)

  • CBD (Cannabidiol)

They’re both found in varying levels across different cannabis strains — each offering unique properties.

🔺 What Is THC?

THC (Tetrahydrocannabinol) is the psychoactive compound in cannabis. It's responsible for the "high" or euphoric effect associated with many strains.

🔍 Key Facts:

  • Interacts with CB1 receptors in the brain

  • Can affect perception, mood, appetite, and memory

  • Often found in high concentrations in Indica and Hybrid strains

  • Legal THC limits vary widely worldwide (THC is illegal in the UK in most cases)

🧬 Why It Matters for Seed Collectors:

  • High-THC seeds are often chosen for their potency and rich genetic lineage

  • Many modern hybrids are bred specifically for high THC levels

  • Collectors interested in legacy strains (e.g., OG Kush, Gorilla Glue) may seek high-THC varieties for preservation and research

🔷 What Is CBD?

CBD (Cannabidiol) is a non-psychoactive cannabinoid. It doesn't produce a "high," but it's been widely researched for its potential therapeutic properties.

🔍 Key Facts:

  • Interacts primarily with CB2 receptors (immune system, body)

  • May support relaxation, focus, recovery, or balance (research ongoing)

  • Found in specific strains bred for high-CBD content (e.g., Charlotte’s Web)

  • CBD products (like oils) are legal in the UK under strict guidelines

🧬 Why It Matters for Seed Collectors:

  • High-CBD strains are valued for their medical potential and calming profile

  • Many collectors preserve CBD-dominant strains as part of medical or academic archives

  • Some seedbanks offer balanced 1:1 THC:CBD genetics for diversity

⚖️ THC vs. CBD: Quick Comparison

Property THC CBD
Psychoactive? Yes (causes a high) No (non-intoxicating)
Legality in UK? Illegal without licence Legal in approved forms
Common Use Cases Recreational, potent effects Wellness, balance, potential relief
Found in Strains? Indica, Sativa, Hybrid High-CBD or Balanced strains
Collectors Seek? Potency, legacy, rare hybrids Medicinal potential, niche strains

🔬 Minor Cannabinoids Worth Knowing

Beyond THC and CBD, cannabis plants can contain over 100+ minor cannabinoids, including:

  • CBG (Cannabigerol) – the "mother" cannabinoid from which others develop

  • CBN (Cannabinol) – mildly psychoactive, often found in aged cannabis

  • CBC (Cannabichromene) – non-intoxicating, under early-stage research

While not as widely available, some seed strains are bred for these rare profiles — making them highly desirable for collectors and researchers.

🧠 Why Cannabinoid Content Matters in Seeds

Although cannabis seeds themselves don’t contain active THC or CBD, they carry the genetic blueprint that determines cannabinoid production if legally grown.

As a collector, knowing the expected cannabinoid profile helps you:

  • Choose strains that suit your research interests

  • Build a balanced archive of high-THC, high-CBD, and hybrid seeds

  • Understand emerging trends in cannabis science and genetics

📦 Browse Seeds by Cannabinoid Profile

Looking for seeds with specific cannabinoid traits? Explore our curated collections:

⚠️ UK Legal Notice

In the UK:

  • Cannabis seeds are legal to buy and possess

  • Germination and cultivation are illegal without a licence

  • THC-containing cannabis is a Class B controlled substance

Loud Genetics does not promote or encourage illegal use of our products. All seeds are sold as souvenirs for adults aged 18+.