Dosage information is for harm reduction purposes only. Individual sensitivity varies greatly. Always start with the lowest effective dose and work your way up slowly. Never eyeball doses — use a milligram scale.
Dosage Ranges
Oral
Threshold
3 mg (sulforaphane equivalent)
Light
5–15 mg (sulforaphane equivalent)
Common
15–40 mg (sulforaphane equivalent)
Strong
40–80 mg (sulforaphane equivalent)
Heavy
150 mg (sulforaphane equivalent)
Duration Timeline
Oral
Total: 12 hrs – 24 hrs
Onset
Peak
Afterglow
Onset1 hrs – 3 hrs
Come Up36 min – 2.4 hrs
Peak3.6 hrs – 9.6 hrs
Afterglow1.2 hrs – 7.2 hrs
Bioavailability by Route
Oral
~80% (pre-formed sulforaphane), ~40% (glucoraphanin with myrosinase)
Frequently Asked Questions
What is a common dose of Sulforaphane?
A common Oral dose of Sulforaphane is 15–40 mg (sulforaphane equivalent).
What is the threshold dose for Sulforaphane?
The threshold dose for Sulforaphane via Oral is approximately 3 mg (sulforaphane equivalent).
How long does Sulforaphane last?
Sulforaphane typically lasts 12–24 hours via Oral.
