Safety question
Is Forskolin (Coleus forskohlii) safe?
Moderate risk — meaningful at higher doses or in vulnerable users. Forskolin (Coleus forskohlii) scores 3/5. Adverse reactions are real and worth knowing — cardiovascular sensitivity, sleep disruption, and tolerance development show up at the upper end of the dose range. Cycling and individual response monitoring matter more than for foundational supplements.
Safety score
3 / 5
Evidence grade
B
Severe reactions on file
0
Pubmed cites
600
Key facts
- typical dose
- 250–500 mg
- dose frequency
- 1-2 doses
- timing
- AM
- with food
- with meal
- safety score
- 3/5
- evidence grade
- B
- class
- stimulant
- PubMed citations
- 600
- legal status (US)
- Over-the-counter
- legal status (UK)
- Over-the-counter
- legal status (EU)
- Over-the-counter
- legal status (AU)
- Over-the-counter
- primary mechanism
- Directly activates adenylyl cyclase, increasing intracellular cAMP.
Common side effects
No commonly reported side effects on file for Forskolin (Coleus forskohlii) at typical doses.
Uncommon side effects
- Hypotensionmoderate
- Tachycardiamoderate
Who should not take Forskolin (Coleus forskohlii)
- Pregnant or breastfeeding individuals — most nootropics have not been adequately studied in pregnancy, and the precautionary principle applies.
- Anyone on a prescription medication that overlaps mechanistically (stimulants, SSRIs, MAOIs, beta-blockers, anticoagulants) — clear interactions with your prescribing clinician before adding Forskolin (Coleus forskohlii).
- Anyone with significant cardiovascular, hepatic, renal, or psychiatric disease — established conditions raise the baseline risk for any new compound.
- Minors — almost no nootropics have a paediatric safety record, and developing brains are differently sensitive.
What "safe" means here
Our safety scoring reflects (a) published clinical and observational literature on healthy-adult use at standard supplement doses, (b) the spectrum of adverse-event reports in the medical and supplement-pharmacovigilance record, and (c) the regulatory status across major jurisdictions. It does notreflect long-term outcomes in populations that haven’t been studied, and it does not substitute for clinical judgement applied to your individual situation.
A 5/5 score does not mean “no risk” — it means risk has been quantified as low in healthy adults at usual doses. Idiosyncratic and allergic reactions are possible with virtually any compound, including those we rate highest.
Full mechanism, citations, and dose guidance for Forskolin (Coleus forskohlii) are on the main reference page — see Forskolin (Coleus forskohlii). For the dose-by-dose breakdown, see Forskolin (Coleus forskohlii) dosage. To check stack interactions, use the interaction checker.
This page is informational. It is not medical advice and does not establish a clinician-patient relationship. Individual risk varies with genetics, medications, pre-existing conditions, and dose. Always consult a qualified clinician before starting a new compound. See our full disclaimer and terms.