2C-B (4-Bromo-2,5-dimethoxyphenethylamine)
A popular phenethylamine psychedelic first made by chemist Alexander Shulgin. Known for colorful visuals and an upbeat, sensual, manageable experience at common doses.
How it works
Activates serotonin 5-HT2A receptors. A phenethylamine rather than a tryptamine.
Key facts
- Molecular weight: 260.16 g/mol
- Half-life: ~2 hours
- Bioavailability: Oral
- Storage: Research/reference only.
Dosing overview
- Typical dose: Varies by individual and setting
- Frequency: Occasional
- Duration: Acute effects last 4-6 hours
- Route: Oral
Protocol notes
- Taken orally as a measured dose (powder, capsule or pill) for a colorful, upbeat 4-6 hour experience.
- Sometimes used socially because it is shorter and gentler than LSD.
- Dose is very sensitive, so people measure carefully.
Reported benefits
- Colorful, gentle visuals
- Upbeat and sociable
- Shorter than LSD
- Well-studied Shulgin compound
Possible side effects
- Anxiety at higher doses
- Nausea
- Raised heart rate and blood pressure
- Dose-sensitive
Community reviews of 2C-B
- kayla270 rated it 4/5 - Brightened Afternoon Slump After Training: After a heavy leg day, a low 2C‑B dose turned my post‑workout fatigue into a light, buzzing focus that let me finish paperwork without the usual brain fog, and the colours in the lab seemed a bit sharper, still a bit twitchy, but overall pleasant.
Compare 2C-B
Research and educational reference only. Not medical advice.