Ingredient profile
Hawthorn Berry Supplement and Cayenne in Protoflow: 250 mg and 20 mg
Hawthorn berry supplement is the largest line in Protoflow, 250 mg of fruit per two capsules, tied with epimedium. Cayenne is the smallest at 20 mg. NCCIH finds little or no quality evidence for hawthorn in most uses, and neither herb has prostate data. People on heart or blood pressure medicine should ask a doctor first.
Written by the Protoflow label deskUpdated
Hawthorn
Why is hawthorn in a prostate formula?
The label does not say. Hawthorn is a traditional heart herb, and NCCIH makes no claim about the prostate.
Hawthorn fruit is the joint largest line on the Protoflow label, 250 mg per two capsules, or 125 mg a capsule. That is about 15% of the 1,619 mg of actives.
The NCCIH page on hawthorn makes no claim about the prostate or bladder (NCCIH, Hawthorn). On this site hawthorn sits in the circulation group, next to ginkgo and cayenne. A formula can include an herb for a reason the seller never explains. The sales page names hawthorn berries but gives no study for the choice (Protoflow sales page).
So treat it as an extra line with a large number beside it. The number does not make it a prostate ingredient.
Research
What does hawthorn research actually study?
Mostly heart failure, with conflicting results, and for up to 16 weeks.
NCCIH says there is "little or no quality evidence on hawthorn for most health conditions." Results in heart failure conflict, and the evidence is not enough for heart disease, angina or abnormal heartbeat. No studies have tested use beyond 16 weeks (NCCIH, Hawthorn).
That leaves a gap. The studies covered people with heart conditions, using hawthorn preparations. They did not cover healthy men taking 125 mg capsules for months.
| Line | Per 2 capsules | What the source says |
|---|---|---|
| Hawthorn (fruit) | 250 mg | Little or no quality evidence for most uses; heart failure data conflict (NCCIH, Hawthorn) |
| Cayenne (fruit) | 20 mg | No human evidence for prostate or bladder benefit (MSK, Cayenne) |
No trial has tested Protoflow itself. Read the other herbs in ginseng and ginkgo.
Heart medicines
Can hawthorn lower blood pressure or interact with heart medicines?
The NCCIH page names no blood pressure effect and no heart medicine. It does advise asking a provider first.
NCCIH lists dizziness, nausea, vomiting, diarrhea and muscle pain as side effects. One study of a hawthorn preparation may have been linked to early heart failure progression. A drug interaction was suggested, but the reason is unclear, and the page does not name which medicines (NCCIH, Hawthorn).
That answers the beta blocker question too. The source says nothing about beta blockers, or about any heart or blood pressure drug. Silence is not safety. It means no one has checked well.
The label adds its own line: if you take any medication, consult a physician before use.
Ask your doctor or pharmacist before the first capsule, and bring the label. Keep taking prescribed medicine. Details in supplements and prostate medicines.
Cayenne
Is 20 mg of cayenne enough to matter?
It is the smallest line on the label, 1.2% of the actives. No human evidence links cayenne to the prostate.
Two capsules hold 20 mg of cayenne fruit, 10 mg a capsule. Hawthorn is 12.5 times larger. Memorial Sloan Kettering reports no human evidence for prostate or bladder benefit, and says thermogenic and appetite effects are small (MSK, Cayenne).
We found no source that sets a dose at which cayenne starts to act. So whether 20 mg matters is not known. Capsaicin capsules sold alone are not the same as a trace of cayenne fruit inside a mix.
On the sales page, cayenne pepper is one of the eight named ingredients (Protoflow sales page). It appears there with no number. The label supplies the number.
Protoflow: from $1.63 a day60 capsules a bottle · packs of 2, 3 or 6 · 60-day money-back guarantee
See packsCayenne cautions
Can cayenne capsules upset the stomach?
Yes, stomach irritation and pain are the common effects, according to Memorial Sloan Kettering.
The MSK page lists stomach irritation and pain, sweating, and eye or nose irritation. Case reports include high blood pressure after large amounts of chili peppers, and gastric bleeding in healthy volunteers (MSK, Cayenne). Those reports involved far more than 20 mg.
It advises caution with high blood pressure or a heart condition. It lists possible interactions with cyclosporin, antihypertensives and antiplatelet drugs, though clinical relevance is often unclear (MSK, Cayenne).
- Swallow the capsules whole with water, as the label says
- If you get burning or pain, stop and call your doctor
- Tell your doctor if you take a blood pressure medicine or an antiplatelet
Niacin, also in Protoflow, can flush the skin. See niacin and vitamin E.
Label lines
What do the hawthorn and cayenne label lines show?
Two lines: 250 mg and 20 mg, no extract ratio printed.
The cards below repeat each amount, the research range and the evidence level. Then go on to the next group.
| Name on the label | Hawthorn (Fruit) |
|---|---|
| What it is | Crataegus fruit |
| Group on this site | Circulation herbs |
| Amount per 2 capsules | 250 mg per 2 capsules |
| Amount per capsule | about 125 mg |
| On the sales page's list of 8? | Yes |
| Amount used in research | No set dose; studied mainly in heart failure |
| Strength of evidence | Little or no quality evidence for most uses |
| Marketed or traditional use | Traditional heart herb |
| Main caution | Dizziness and nausea are reported. Talk to your doctor first if you have a heart condition or take heart medicine. |
| Name on the label | Cayenne (Fruit) |
|---|---|
| What it is | Capsicum fruit; contains capsaicin |
| Group on this site | Circulation herbs |
| Amount per 2 capsules | 20 mg per 2 capsules |
| Amount per capsule | about 10 mg |
| On the sales page's list of 8? | Yes |
| Amount used in research | No oral dose set for this use |
| Strength of evidence | No human evidence for the prostate or bladder |
| Marketed or traditional use | Traditional warming spice |
| Main caution | Can irritate the stomach; take care with high blood pressure or a heart condition. |
FAQ
Hawthorn and cayenne questions
01Why is hawthorn in a prostate formula?
The label does not say. Hawthorn is a traditional heart herb, and the NCCIH page makes no claim about the prostate or bladder (NCCIH, Hawthorn). Protoflow holds 250 mg of fruit per serving.
02Can hawthorn lower blood pressure?
The NCCIH page names no blood pressure effect. It lists dizziness, nausea, vomiting, diarrhea and muscle pain as side effects (NCCIH, Hawthorn). If you take blood pressure medicine, ask your doctor first.
03Does hawthorn interact with heart medicines?
Possibly. NCCIH mentions a suggested drug interaction in one heart failure study but does not name the medicines (NCCIH, Hawthorn). Anyone on heart medicine should ask a doctor or pharmacist first.
04Is 20 mg of cayenne enough to matter?
Unknown. It is the smallest label line, and MSK reports no human evidence for prostate or bladder benefit (MSK, Cayenne). We found no source setting an effective dose for this use.
05Can cayenne capsules upset the stomach?
Yes, stomach irritation and pain are common oral effects, says MSK (MSK, Cayenne). Reports involved larger amounts than Protoflow's 20 mg. Stop and call your doctor if you feel burning or pain.
06Is hawthorn safe with beta blockers?
We cannot say. The NCCIH page does not mention beta blockers or any named heart drug (NCCIH, Hawthorn). The label tells you to consult a physician if you take any medication, so ask yours.
07What does hawthorn research actually study?
Mostly heart failure, with conflicting results. NCCIH finds little or no quality evidence for most uses, and no studies beyond 16 weeks (NCCIH, Hawthorn). It covers no prostate outcomes.
Who wrote this
Written and reviewed by
Pages built from the Protoflow label, the sales page and linked NIH, FDA, FTC, NHS and peer-reviewed sources.
Last updated . Learn about our editorial standards and how we check reviews. This website is run by Goprotoflow, a licensed U.S. retail desk for Protoflow, not by the manufacturer or by PhytoThrive Labs. We earn money when you buy through our order links.
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