Forskolin (Coleus forskohlii): Uses, Benefits, Dosage & Safety
Last updated: June 2026 · Reviewed by the FactoWiki Editorial Team for clarity and source accuracy
Quick summary
Forskolin, from the Coleus forskohlii plant, is marketed for fat loss. It has a genuine cellular mechanism (raising cAMP), but human weight-loss evidence is weak and limited to small studies.
What is Forskolin (Coleus)?
Forskolin is a compound from the root of Coleus forskohlii, a plant used in Ayurvedic medicine. It became a popular 'fat-burner' after media promotion. Unlike many botanicals, forskolin has a well-defined cellular action, which gives it a veneer of credibility.
What Forskolin (Coleus) is commonly used for
In supplements, Forskolin (Coleus) is most often included for weight & metabolism support. It is used as nutritional support, not as a treatment for any medical condition — the distinction matters, because the claims on a sales page are often stronger than the evidence allows.
How Forskolin (Coleus) works
Forskolin activates an enzyme (adenylate cyclase) that raises cyclic AMP (cAMP) inside cells, which can stimulate fat breakdown and influence hormones and metabolism. Whether this translates into meaningful fat loss in people is the unanswered question.
What the evidence says
Here's an honest snapshot of what published research suggests about Forskolin (Coleus) — including where the evidence is limited.
- A couple of small studies suggested forskolin might affect body composition or testosterone in men, but results are inconsistent and the trials are small. (PubMed research)
- Overall, human evidence for forskolin as a weight-loss aid is weak. (PubMed research)
Typical dosage used in studies
Studies have used extracts standardised to 10% forskolin, providing roughly 25-50 mg of forskolin per day. This is research information for context, not a recommendation — confirm what's appropriate for you with a healthcare professional.
Side effects and safety
Generally tolerated; it can lower blood pressure and increase heart rate, and may increase stomach acid.
Medication interactions and who should avoid Forskolin (Coleus)
Medication & safety check
It can add to blood-pressure-lowering and blood-thinning medication and should be avoided before surgery and in people with low blood pressure or ulcers.
This is general information, not personal medical advice. If you take any medication, confirm it's safe to combine with Forskolin (Coleus) with your doctor or pharmacist first.
Sources & further reading
The summary above is drawn from peer-reviewed research and authoritative references. For general, authoritative background you can also consult:
- PubMed research on Forskolin (Coleus)
- NIH Office of Dietary Supplements
- NIH National Center for Complementary and Integrative Health
- MedlinePlus (U.S. National Library of Medicine)
Frequently asked questions
Does forskolin burn fat?
It has a real cellular mechanism, but human weight-loss evidence is weak.
Is forskolin safe?
Generally tolerated, but it can lower blood pressure and raise heart rate.
Who should avoid it?
People with low blood pressure, on blood thinners, or before surgery.
Is it a proven supplement?
No — the fat-loss claims outrun the limited human evidence.
Supplements that contain Forskolin (Coleus)
On FactoWiki, Forskolin (Coleus) appears in these reviewed products. Each review breaks down the full formula, pricing and safety.
- RingZen6 — Hearing & Tinnitus
Related ingredients to explore
Ingredients often studied or formulated alongside Forskolin (Coleus) — useful for understanding the full picture of a formula.