Ingredient
Ginkgo in Protoflow: 120 mg and a Bleeding Caution
Ginkgo is a leaf extract from the ginkgo tree, and Protoflow lists 120 mg per serving. The sales page does not name it. NCCIH says there is no conclusive evidence that ginkgo helps any health condition, and it may raise bleeding risk in people taking anticoagulants such as warfarin.
Written by the Protoflow label teamUpdated
The plant01
What is ginkgo?
Ginkgo (Ginkgo biloba) is one of the oldest living tree species, and its fan-shaped leaves are dried and extracted for supplements sold for memory and circulation.
On the Protoflow panel it appears as "Ginkgo" with 120 mg, line 5 of 14, and no Daily Value. The sales page names eight herbs and ginkgo is not one of them, so a shopper who reads only the sales page would never learn it is in the capsules. That is the case for reading the label first.
The label gives no extract ratio, and ginkgo products vary. Studies use standardized leaf extracts with set amounts of flavonoids and terpenes. A plain leaf powder, or an extract with unknown strength, would not compare.
| Name on the label | Ginkgo Biloba (Leaf) |
|---|---|
| What it is | Ginkgo biloba leaf |
| Place on the label | 7 of 14 |
| Amount per serving (2 capsules) | 120 mg |
| Per capsule, if split evenly | 60 mg (the label does not say) |
| % Daily Value | Not established |
| Named on the sales page? | No |
| Amount used in research | No dose is tied to a prostate effect |
| Strength of evidence | No conclusive evidence for any health condition |
| Marketed or traditional use | Memory and circulation tonic |
| Main caution | May raise bleeding risk with anticoagulants such as warfarin. |
Evidence02
Does ginkgo help the prostate?
No study we found tests ginkgo for prostate or urinary symptoms, and NCCIH says there is no conclusive evidence that ginkgo helps any health condition.
Ginkgo's best-known use is for memory and thinking, and large trials in older adults did not show that it prevents decline. Its reputation for blood flow comes from lab and small-scale work. Nothing in that body of research ties ginkgo to prostate size, urine flow or night-time trips to the bathroom (NCCIH, Ginkgo).
Why would a prostate formula include it? Probably because marketers group "circulation" herbs with "men's health", a leap the research does not support. The label puts ginkgo in a blend with hawthorn, epimedium and others that share the same loose circulation story.
Caution03
Can ginkgo cause bleeding?
Yes, it may: NCCIH states that ginkgo may increase the risk of bleeding in people taking anticoagulant drugs such as warfarin (NCCIH, Ginkgo).
Vitamin E, also on the Protoflow panel, can add to bleeding in high doses (NIH ODS, Vitamin E), so a blood thinner plus this formula stacks two cautions. The label asks you to consult a physician if you take any medication, and for blood thinners that is not a formality.
Plan ahead of surgery or dental work. Many clinics ask patients to list every supplement and sometimes to pause some of them before a procedure. That decision belongs to the surgeon or the prescriber, not to a website. Never stop a prescribed medicine on your own, and bring the bottle or a photo of the label to the appointment.
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
Book an appointment
- 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.
Amount04
Is 120 mg of ginkgo a normal amount?
It is within the range people commonly see on supplement labels, but the label's format hides whether it matches any studied product.
Ginkgo trials often use about 120 to 240 mg a day of a standardized extract. Protoflow's 120 mg is at the low end of that, but only if its extract is standardized, and the label does not say. The comparison is therefore a hope, not a fact.
| Point | Protoflow | What to know |
|---|---|---|
| Amount per serving | 120 mg | No Daily Value exists |
| Named on sales page | No | Found only on the label |
| Common side effects | Not printed | Dizziness, stomach upset, headache (NCCIH, Ginkgo) |
| Blood thinners | Not printed | May raise bleeding risk (NCCIH, Ginkgo) |
| Pregnancy | Not printed | May be unsafe (NCCIH, Ginkgo) |

Protoflow: from $49 a bottle60 capsules · 2 a day · free US shipping on 3 or 6 · 60-day money-back guarantee
See packsCombinations05
Why does ginkgo with vitamin E and niacin deserve a second look?
Because three lines on one panel each carry their own caution, and nobody has studied them together at these amounts.
Ginkgo may add to bleeding with anticoagulants (NCCIH, Ginkgo). Vitamin E in large amounts may do the same (NIH ODS, Vitamin E). Niacin at 75 mg a serving is above the 35 mg adult upper limit for supplements and brings flushing (NIH ODS, Niacin). Each caution is small alone, and the label gives them no joint warning beyond the general advice to consult a physician.
That does not mean the formula is dangerous. Most healthy men will notice nothing more than a flushed face. It means that the people most likely to get a surprise are the ones on blood thinners, those with liver disease, and men taking several medicines. They are also the men most likely to be buying a prostate product.
A practical habit helps here. Before you start, write down every medicine and supplement you take, with the dose, and show the list and the Protoflow panel to a pharmacist. Pharmacists check interactions all day, and the check costs nothing at most counters. If you add Protoflow, note the start date, so that a change in bruising, nosebleeds or gum bleeding can be linked to a date. Report any unusual bleeding to a doctor the same day, and do not wait for the bottle to run out.
Surgery and dental work deserve a note. Tell the team about the capsules at the pre-visit stage, not on the day. The team decides whether to pause anything, and the answer may differ by procedure. The label is a good thing to bring, because it lists every line in print.
Who should ask first06
Who should check with a doctor before taking ginkgo?
Anyone on a blood thinner, anyone with a bleeding disorder, and anyone due for surgery should ask a doctor or pharmacist before taking a formula that contains ginkgo.
That list also covers people taking aspirin every day on a doctor's advice, or an antiplatelet drug after a stent or heart event. The reason is plain: both groups of medicine work by slowing clotting, and a herb that nudges clotting the same way adds uncertainty.
Seizure history is another reason to ask. Fresh ginkgo seeds are toxic (NCCIH, Ginkgo). Leaf extracts are the form in supplements, but a person with epilepsy should still raise it with a clinician. The medicines page sets out the wider list of interactions to ask about.
FAQ07
Ginkgo in Protoflow: questions answered
Is ginkgo in Protoflow?
Yes. The label lists ginkgo at 120 mg per serving, line 5 of 14. The sales page names eight herbs and does not include ginkgo, so the label is the only place that shows it.
Does ginkgo thin the blood?
NCCIH says ginkgo may increase the risk of bleeding in people taking anticoagulants such as warfarin. It is not a blood thinner medicine, but anyone on one should ask a doctor before taking it.
Can I take Protoflow with warfarin?
Ask your doctor or pharmacist first, because the formula holds both ginkgo and vitamin E. Do not stop warfarin on your own. Your clinician may want to check your clotting numbers more often.
What are the side effects of ginkgo?
NCCIH lists dizziness, stomach problems and headache as common side effects of ginkgo leaf extract. Allergic reactions are possible. Contact a doctor if symptoms are strong or last.
Should I stop ginkgo before surgery?
Well before the date, tell your surgeon about every supplement and follow their advice. Some surgeons ask patients to pause certain supplements. The decision is theirs, so ask rather than guess.
Does ginkgo improve urine flow?
No study we found shows that. Ginkgo is studied mainly for memory and thinking, with no conclusive benefit. Urine flow problems need a medical check because the causes vary.
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.
Keep reading
More about Protoflow
USA Authorized Retailer
Ready to try Protoflow?
Check your medicines first and get urinary symptoms looked at. Then pick a pack: three or six bottles ship free in the US and cost less per bottle, and every pack carries the 60-day money-back guarantee.
- Secure ClickBank checkout
- 60-day money-back guarantee
- Free US shipping on 3 or 6


