Ingredient
Hawthorn in Protoflow: 250 mg, the Largest Herb Line
Hawthorn is a thorny shrub whose berries and leaves are sold as a heart tonic, and Protoflow lists 250 mg per serving. NCCIH reports little or no quality evidence for most uses, and we found no trial of hawthorn for the prostate or urinary flow.
Written by the Protoflow label teamUpdated
The plant01
What is hawthorn?
Hawthorn (Crataegus) is a group of thorny shrubs and small trees, and the berries, leaves and flowers are used in herbal products, mostly for the heart.
On the Protoflow label it is "Hawthorn", 250 mg, line 1 of the plant lines, and it shares first place with epimedium. The sales page names it too, though without any amount. With no Daily Value, the weight is all you get.
Which part of the plant is used, and in what form, is not printed. Studies of hawthorn in heart failure used standardized leaf and flower extracts at doses far above 250 mg, often several hundred milligrams two or three times a day. The label dose cannot be compared with them.
| Name on the label | Hawthorn (Fruit) |
|---|---|
| What it is | Crataegus species, fruit (berries) |
| Place on the label | 3 of 14 |
| Amount per serving (2 capsules) | 250 mg |
| Per capsule, if split evenly | 125 mg (the label does not say) |
| % Daily Value | Not established |
| Named on the sales page? | Yes, without an amount |
| Amount used in research | Studied mostly in heart failure; no prostate data |
| Strength of evidence | Conflicting in heart failure; little or no quality evidence otherwise |
| Marketed or traditional use | Traditional heart tonic |
| Main caution | Dizziness, nausea; ask a clinician if you take heart or blood pressure medicine. |
Use02
What is hawthorn used for?
Hawthorn is used mainly for heart and blood-vessel complaints, and that is also where almost all of its research sits.
European herbal tradition treats it as a tonic for the circulation. NCCIH summarizes the research in plain terms: "We have little or no quality evidence on hawthorn for most health conditions," and the evidence in heart failure is conflicting (NCCIH, Hawthorn). No studies have tested use beyond 16 weeks.
Prostate and urinary flow are not on that list. A product named for flow that leads with a heart herb is following the same loose story as ginkgo: circulation equals men's health. That story is marketing, not a finding.
Safety03
Is hawthorn safe, and what are the side effects?
Hawthorn is thought to be safe for most adults for short periods, with dizziness, nausea, vomiting, diarrhea and muscle pain among the reported side effects (NCCIH, Hawthorn).
Because it acts on the heart in traditional use, the main question is medicine interaction. Hawthorn has been studied alongside heart drugs, and anyone using blood pressure medicine, a heart rhythm drug, digoxin or a nitrate should talk to a doctor or pharmacist first. That is general herbal advice, not a finding about Protoflow.
NCCIH also records an FDA warning about "tejocote root" products that turned out to contain toxic yellow oleander (NCCIH, Hawthorn). It shows why a plant name on a label does not prove what is inside, and why a lot number is not a lab report. You can read how we treat the lot and CoA references on the batch page.
See a doctor today
- You cannot pass urine at all, or only a few drops with a full, painful bladder
- Blood or clots in the urine
- Fever or chills with burning or painful urination
- Severe pain in the lower belly, back or genitals
- A sudden change after a fall or injury
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- A weak or slow stream, or stopping and starting
- Needing to go again soon after you finish
- Waking more than usual at night to urinate
- A sudden, strong urge that is hard to hold
- Dribbling after you finish
- A new erection problem, or a PSA you have not discussed
Urinary symptoms can come from an enlarged prostate, infection, diabetes, medicines, sleep apnea, and sometimes cancer. Lists drawn from NIDDK (NIDDK, Enlarged Prostate (BPH)) and MedlinePlus (MedlinePlus, Nocturia). A supplement cannot sort these causes out.
At a glance04
How does hawthorn in Protoflow compare with the research?
The label amount is modest, the research is about the heart, and the link to prostate support is a marketing story.
| Question | Answer |
|---|---|
| Amount per serving | 250 mg, no Daily Value |
| Named on the sales page | Yes, without an amount |
| Main research topic | Heart failure; results conflict (NCCIH, Hawthorn) |
| Longest tested use | 16 weeks (NCCIH, Hawthorn) |
| Prostate or flow trial found | None |
| Reported side effects | Dizziness, nausea, vomiting, diarrhea, muscle pain (NCCIH, Hawthorn) |
The 16-week limit matters because the pack sizes run for 3 and 6 months. No data covers that length of daily use for hawthorn.
Protoflow: from $49 a bottle60 capsules · 2 a day · free US shipping on 3 or 6 · 60-day money-back guarantee
See packsReading the label05
What would you need to know to judge the hawthorn line?
You would need the plant part, the extract type and the amount of active compounds, and the Protoflow label gives none of the three.
Hawthorn products differ in what they contain. Leaf-and-flower extracts are usually standardized to flavonoids or to procyanidins, and berry products are another story. Two bottles that both say "Hawthorn 250 mg" can hold very different amounts of the compounds researchers care about.
That is why a single herb name is a weak basis for comparison. If you want to compare Protoflow with a published trial, ask the order desk three plain questions: which part of the plant, whether it is an extract, and whether it is standardized to a marker. The desk's phone is +1 (651) 610-1515. Write the answers down. If the desk cannot answer, that is an answer too.
It also helps to separate two ideas that often get blurred. One is "this plant has a long traditional use". The other is "this dose of this product does something measurable". The first is a matter of history, and hawthorn has plenty. The second needs a controlled trial on the same kind of product, which is the standard the Federal Trade Commission sets for health claims (FTC, Health Products Compliance Guidance). No such trial exists for Protoflow, and none exists for hawthorn and the prostate.
Finally, consider the total. Hawthorn and epimedium make up 500 of the 1,531 mg in the twelve non-vitamin lines, about a third. The formula is therefore built around two herbs with weak evidence for the stated purpose, which is worth knowing when you weigh the price.
Asking first06
Who should talk to a doctor before taking hawthorn?
Anyone with a heart condition or on a heart or blood pressure medicine should ask a clinician before taking Protoflow, because hawthorn is traditionally taken for the heart.
That includes men on beta blockers, calcium channel blockers, ACE inhibitors, digoxin and nitrates. The reason is not that harm has been shown; it is that few good studies exist to tell you the combination is fine. Where evidence is thin, a pharmacist can tell you whether your own medicines raise a flag.
Take the bottle with you, since the pharmacist can read the whole panel in a minute. Keep taking prescribed medicine as directed. The medicines page lists the questions worth asking.
FAQ07
Hawthorn in Protoflow: questions answered
How much hawthorn is in Protoflow?
The label lists 250 mg per serving of two capsules, tied with epimedium as the largest plant line. It does not say which part of the plant is used or whether it is an extract.
Is hawthorn good for the prostate?
We found no trial that tests hawthorn for the prostate or urinary flow. Its research is on the heart, where NCCIH calls the evidence conflicting and says quality evidence is little or none for most uses.
Can hawthorn interact with heart medicine?
It may. Hawthorn is used for the heart, so anyone on blood pressure, rhythm or nitrate medicine should ask a doctor or pharmacist before taking it. Do not change a prescription yourself.
What are hawthorn side effects?
Reported effects include dizziness, nausea, vomiting, diarrhea and muscle pain. Call a doctor for chest pain, a racing heartbeat or fainting, and seek emergency care for severe symptoms.
How long can you take hawthorn?
No studies have tested use beyond 16 weeks, according to NCCIH. The 3-bottle and 6-bottle packs cover 3 and 6 months, so longer use rests on tradition rather than trials.
What was the tejocote warning?
FDA warned that some products sold as tejocote root contained toxic yellow oleander instead. It is a reminder that a plant name on a bottle is not proof of the contents.
Who wrote this08
Written and reviewed by
Pages built from the label, the sales page and linked NIH, FDA, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is run by a USA authorized retailer of Protoflow, not by the manufacturer or the label distributor. Buying through our order links earns us money.
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