Ingredient: butcher's broom
Butcher's broom root extract in Flow Nerves: vein studies, not nerve trials
Butcher's broom root extract is the third of six ingredients Flow Nerves names, and the seller prints no amount for it. The studies we read were about leg veins, such as a 12-week trial in 166 women, not about nerves. We found no source on interactions, including blood pressure and prostate medicines, so ask a pharmacist. No trial tested Flow Nerves.
Written by the Flow Nerves label deskUpdated
On the bottle
What is butcher's broom root extract in Flow Nerves?
Butcher's broom root extract comes from the root of a Mediterranean shrub (Ruscus aculeatus), and Flow Nerves names it third among six ingredients (Flow Nerves seller brief).
The seller prints no milligram amount, and we hold no Supplement Facts panel. The order of names is the seller's, not a ranking by amount. We were not told which part of the plant or which extract strength is used. Flow Nerves is a capsule, not a gummy or a liquid.
| Name as the seller lists it | Butcher's Broom Root Extract (named; milligrams not printed) |
|---|---|
| What it is | An extract from the root of a Mediterranean shrub (Ruscus aculeatus); the seller names it and prints no amount |
| What it is sold for | Studied for leg veins, not nerves |
| Amount printed | amount not printed |
| Amount used in research | A 12-week trial in 166 women with chronic venous insufficiency; a 2025 venoactive review; the EMA herbal assessment |
| What the studies found | A 12-week placebo-controlled trial in 166 women with chronic venous insufficiency found less leg volume and heaviness than placebo. A 2025 review grades a Ruscus extract combined with hesperidin methyl chalcone and vitamin C as supported in venous disease while noting variable symptom evidence. The EU herbal assessment allows traditional use in adults to relieve discomfort and heaviness of the legs and says there is 'insufficient evidence from clinical trials'. These are vein studies; none was a trial for tingling or nerve damage. The sales page's word 'circulation' fits this evidence better than 'nerves', and no amount is printed. |
| Main caution | We found no NIH, NCCIH or LiverTox page with an interaction list for butcher's broom, so we state no sourced interaction. The EMA page advises seeing a doctor if leg symptoms last more than 2 weeks or worsen. Ask a pharmacist about blood pressure and prostate medicines. |
What studies tested
What did butcher's broom studies test?
They tested leg veins, mainly swelling and heaviness in the legs, and not nerves.
A 12-week placebo-controlled trial enrolled 166 women with chronic venous insufficiency (148 were analyzed). A butcher's broom extract capsule product gave less leg volume and less heaviness than placebo (Vanscheidt 2002, butcher's broom trial). The abstract does not give the extract dose.
A 2025 review of venoactive drugs in chronic venous disease says evidence on symptoms has shown some variability. Its best-graded ruscus evidence is for a combination with hesperidin methyl chalcone and ascorbic acid, not for the extract alone (Gloviczki 2025, venoactive compounds review).
The EMA allows traditional use in adults for discomfort and heaviness of the legs related to minor problems of blood circulation. It also says there is "insufficient evidence from clinical trials", and to see a doctor if symptoms last more than 2 weeks or worsen (EMA, Butcher's broom (Rusci rhizoma)). We found no trial of butcher's broom for nerve symptoms, and no trial tested Flow Nerves.
Claims vs evidence
Does butcher's broom help “circulation” or nerves?
The word fits the vein evidence better than it fits nerves, and no source shows butcher's broom changes nerve symptoms.
The sales copy uses "circulation" as a selling word. The EMA uses the phrase "blood circulation" for leg-vein discomfort. Neither says anything about the "nerve endings in your hands, feet, and legs" that the sales copy names. A vein study cannot stand in for a nerve trial.
| Item | What the sources show |
|---|---|
| Amount in Flow Nerves | Not printed |
| Who was studied | 166 women with chronic venous insufficiency, 12 weeks |
| Outcome measured | Leg volume and heaviness |
| EMA view | Traditional use only; "insufficient evidence from clinical trials" |
| Trial for nerve symptoms | None found |
Magnesium
Little17 of 100
We found no human trial of magnesium glycinate for nerve symptoms; a Cochrane review found no clinically meaningful cramp benefit in older adults. (NIH ODS, Magnesium)
Alpha lipoic acid
Mixed36 of 100
Trials were in people already diagnosed with diabetic neuropathy at about 600 to 1,800 mg a day; the 4-year trial missed its main goal. (Hsieh 2023, oral alpha-lipoic acid meta)
Butcher's broom
Little17 of 100
The evidence is about leg swelling and heaviness from veins; we found no trial of butcher's broom for nerve symptoms. (Vanscheidt 2002, butcher's broom trial)
L-carnitine
Little17 of 100
The neuropathy trials used acetyl-L-carnitine at 1,500 to 3,000 mg a day, and the Cochrane review rates the certainty very low. (NIH ODS, Carnitine)
Turmeric
Little17 of 100
The one randomized trial we read (40 mg of nanocurcumin twice a day for 16 weeks) found no difference in pain or neuropathy scores; LiverTox rates turmeric 'A' for liver injury cases. (NCCIH, Turmeric)
Coenzyme Q10
Very little6 of 100
MSK mentions one placebo-controlled trial that suggested less pain in diabetic neuropathy; we read no trial of our own, and the statin-pain meta-analysis found no benefit. (MSK, Coenzyme Q10)
Our reading of the sources, not a measurement. Each needle is an editor's judgment of how well human studies support the nerve-support line for that ingredient, at studied amounts. It does not rate Flow Nerves: no study tested the capsule or this six-ingredient blend.
Cautions
Does butcher's broom interact with blood pressure medicine?
We found no source on interactions, so we cannot say yes or no. Ask a pharmacist about blood pressure and prostate medicines.
We found no NIH, NCCIH or LiverTox page for butcher's broom. The EMA page we read has no interaction text, and we make no claim from that silence (EMA, Butcher's broom (Rusci rhizoma)). A missing source is a gap, not a clean result.
Keep taking prescribed medicine exactly as directed. Never stop or change a prescribed medicine because of a supplement. Tell your clinician and pharmacist about every supplement, including this one (NIH ODS, Dietary Supplements: What You Need to Know). For the sourced cautions about the other five ingredients, see medicine interactions.
Pregnant or nursing, or under 18: ask a physician first. We found no butcher's broom source on pregnancy either.
Flow Nerves capsule: 30 a bottle1 capsule a day per the seller's FAQ · 2, 3 or 6 bottles · 2 bottles at $79 each · other prices at checkout
See the priceSymptoms first
Is heavy or tingling feeling in the legs a reason to see a clinician?
Yes, if it is new, lasting or in both feet. The sales copy describes a “heavy, tingling, ‘on edge’ sensation”, and that is a symptom to have examined, not a product claim to rely on.
The heaviness in the EMA text is leg heaviness from minor vein problems. Tingling is a different symptom. Mayo Clinic says to seek medical care right away for tingling, weakness or pain in the hands or feet (Mayo Clinic, Peripheral neuropathy). Causes include diabetes, low vitamin B12, alcohol, some medicines and pressure on a nerve. See when to see a clinician.
More
Which other Flow Nerves ingredients should you read about?
Each ingredient page asks the same questions about amount, studies and cautions.
Ask for the bottle's Supplement Facts panel before you buy.
FAQ
Butcher's broom questions
How much butcher's broom is in Flow Nerves?
We cannot say. The seller prints no amount, and we hold no Supplement Facts panel. Our sources give no dose for butcher's broom in a nerve trial.
Is butcher's broom used for nerves?
The studies we read were about leg veins, not nerves. We found no trial of butcher's broom for tingling, numbness or other nerve symptoms.
Can I take butcher's broom with blood pressure medicine?
We found no source on this, so we state no answer. Ask a pharmacist, and never stop or change a prescribed medicine because of a supplement.
What did the 166-women butcher's broom trial find?
A 12-week placebo-controlled trial in women with chronic venous insufficiency found less leg volume and heaviness with the extract than with placebo. It did not study nerves.
What does the EMA say about butcher's broom?
The EMA lists traditional use in adults for leg discomfort and heaviness related to minor circulation problems. It says there is insufficient evidence from clinical trials and to see a doctor after 2 weeks.
Does butcher's broom have a prostate medicine warning?
We found no sourced warning and no source that rules one out. A pharmacist can check your prostate and blood pressure medicines against the full ingredient list.
Who wrote this
Written and reviewed by
Pages built from the bottle render, the seller's brief and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is the information site of a licensed U.S. retail desk for Flow Nerves. It is not the manufacturer, and we have not been given the name of the maker. We earn money when you buy through our order links.
Keep reading
More about Flow Nerves
Licensed U.S. retail desk for Flow Nerves
Ready to look at Flow Nerves?
Check your medicines first, and ask a clinician or pharmacist if you take blood thinners, diabetes medicine or thyroid hormone. Then pick a pack: 2, 3 or 6 bottles of 30 capsules. The 2-bottle pack is listed at $79 a bottle; the other prices are shown at checkout. A 60-day satisfaction promise is listed, so confirm the live policy.
- Secure checkout on the seller's site
- 60-day satisfaction promise, per the seller
- Shipping shown at checkout
