Quick Facts

Dr. Marty Ross, MD
Dr. Ross's Expert Review
Every herbal immune-support regimen I build starts with a short list of workhorse herbs. Cryptolepis sanguinolenta is on that list. It is a West African botanical with a long history in traditional medicine, and it has earned its place in modern herbal protocols.
The Montana Farmacy version is a concentrated 1:5 root tincture, nothing but the extract, organic cane alcohol, and water. I like single-herb tinctures for one practical reason: dosing is clean. When a regimen has five moving parts, I want to adjust one herb at a time without guessing which capsule did what.
What the research shows
Laboratory work on this herb is better than most. In test-tube studies, Cryptolepis extracts showed strong inhibitory activity against Babesia duncani, with no regrowth after subculture, and good activity against Borrelia burgdorferi. Other studies show activity against growing and persister states of Borrelia and Bartonella in the lab. Cryptolepine, its main alkaloid, showed antiprotozoal activity against several Babesia species in lab and animal work. There are no large human trials of this herb.
What I watch for
Die-off type reactions are the main issue when starting. Some people report feeling worse before they feel better early on, so the answer is a low start and a slow climb. Toxicology work suggests the herb is generally well tolerated at typical doses, though safety in pregnancy has not been established, which is why it is avoided there.
The bottom line
This is one of the few herbs where the lab science, traditional use, and my clinical observation all point the same direction. That combination does not come along every day. Work with your physician on dose and on where it fits in a full plan.
How I Use It in My Practice
I use Cryptolepis most in ongoing herbal immune-support regimens, usually for months at a stretch rather than short bursts. The dose depends on the situation and is always set with the person’s physician. My usual range works up from 2.5 ml three times a day to 5 ml three times a day when more ongoing support is the goal. I never start at the target dose. I begin with a fraction, once a day, and increase every few days as tolerated. If die-off type symptoms show up, fatigue, body pain, or brain fog, that means the climb was too fast, and I hold or drop back. The tincture can be diluted in water or juice, which helps with taste and stomach comfort.
The Research, in Dr. Ross's Words
In my review of research, Cryptolepis sanguinolenta has a better laboratory record than most herbs used in tick-borne infection support. Zhang and colleagues screened 46 herbal medicines against Babesia duncani and found Cryptolepis among the standouts, with the ethanol extract showing no regrowth after six days of subculture at several multiples of the inhibitory dose. The same paper reported good activity against Borrelia burgdorferi. Additional laboratory research shows Crypto is effective against growing and persister states of Bartonella and Borrelia.
Cryptolepine, the plant’s main alkaloid, carries the story further. Batiha and colleagues showed growth inhibition against several Babesia species in vitro and against Babesia microti in mice, including some activity alongside standard babesiocidal drugs. Shor and Schweig reviewed the broader nutraceutical literature and pointed to Cryptolepis as a leading option among persistent tick-borne infection herbs.
Nearly all of this work is in vitro or in animal models, with no controlled human trials. The papers also note safety questions, including possible anti-fertility and embryotoxic effects, which is why the herb is avoided in pregnancy. Clinically I see benefits in my practice supported by the laboratory research findings.
References
Supplement Facts
| Amount Per Serving | Amount | |
|---|---|---|
Cryptolepis (Cryptolepis sanguinolenta) | 554 mg | |
‡ Daily Value (DV) Not established | ||







