CBN: The Hidden Gem of the Cannabinoids

CBN (cannabinol) is a cannabinoid that forms when THC breaks down, as cannabis ages or is exposed to light, heat and air. It often flies under the radar compared to THC or CBD, but for those seeking mild effects, especially around sleep, it’s a compound worth knowing. It’s also easy to make at home with a bit of time and the right tools.

Let’s break it down.

What Is CBN?

CBN is a cannabinoid that forms when THC breaks down. Fresh cannabis contains little to no CBN. But when buds age, or are exposed to light, heat, and air, THC oxidizes into CBN naturally.

Even in well-stored cannabis, studies show about 16% of THC degrades to CBN after a year [source].

What Does CBN Do?

CBN is mildly psychoactive but doesn’t cause the high most associate with THC. Users typically turn to CBN for:

• Improved sleep
• Reduced muscle spasms
• Anti-inflammatory support
• Chronic pain relief
• Anxiety and stress reduction

Its calming profile makes it a go-to option for nighttime use or for those who want relief without intensity.

How to Turn THC Into CBN

CBN comes from aged THC. You can let time do the work, or speed it up with heat and light.

Easy: Sunlight & Air

Leave your cannabis on a tray in a sunny spot for 2–3 weeks. The UV and oxygen will gradually convert THC to CBN.

Faster: Sun + Heat

Expose the herb to sunlight and heat it gently (100–110°C). This combination speeds up the conversion significantly.

Controlled: UV Curebox

Use a UV light curebox to break down THC in a few hours with minimal effort.

How to Make CBN Oil

Once your material is oxidized, you can infuse it just like THC or CBD.

Step-by-Step:

1. Infuse with Oil
   • Add degraded cannabis to your beaker
   • Cover with MCT or olive oil
   • Use the POT by NOIDS to run the infusion cycle
2. Filter & Store
   • Strain out the plant material
   • Pour into dropper bottles for easy dosing

How to Make CBN Concentrate

Looking for a potent extract? Follow this method:

1. Ethanol Wash
   • Soak oxidized cannabis in 190-proof ethanol for 3+ hours
2. Evaporate
   • Filter out solids
   • Add to the POT for evaporation until you’re left with a thick, dark resin

Final Notes

CBN is more than THC’s sleepy cousin, it’s a practical cannabinoid for those seeking rest, relief, and clarity. And it’s one of the few that’s simple to make yourself.

Last reviewed: April 2026