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Ingredients

Prostate Supplement Ingredients: What Is Usually in the Capsule

Quick answer

Prostate supplement ingredients usually start with saw palmetto, then add plants such as pygeum or stinging nettle and minerals such as zinc and selenium. The American Urological Association says many studies of these have weak methods. Protoflow lists 14 lines, and only one, saw palmetto at 84.5 mg, is a classic prostate herb.

Written by the Protoflow label deskUpdated · 4 min read

A saw palmetto plant with fan-shaped green leaves
Plant photo from the vendor's image set, not a picture of the capsule contents.

The usual list01

Which ingredients show up in most prostate supplements?

Saw palmetto leads almost every list. Pygeum, stinging nettle, zinc and selenium follow.

The AUA guideline names those five and says many studies of them have methodological weaknesses. For saw palmetto, two double-blind placebo-controlled trials found no benefit over placebo (AUA BPH Guideline (Sandhu 2023 amendment)).

Common prostate supplement ingredients and the evidence
IngredientWhat the sources say
Saw palmettoProbably not helpful for BPH alone (NCCIH, Saw Palmetto); 32 trials, no better than placebo for flow (Tacklind et al., Cochrane 2012)
Pygeum, nettleStudies have methodological weaknesses (AUA BPH Guideline (Sandhu 2023 amendment))
Zinc, seleniumSame caution from the AUA (AUA BPH Guideline (Sandhu 2023 amendment))
Vitamin ELarge trial linked 400 IU a day to more prostate cancer (NIH ODS, Vitamin E)

Protoflow's list02

How does the Protoflow ingredient list differ?

It has 14 printed lines, and most are not prostate herbs at all.

One serving is 2 capsules and 1,619 mg. Hawthorn and epimedium are 250 mg each. Damiana, muira puama, tribulus and catuaba are sold for libido tradition, and ginkgo, ginseng and cayenne are circulation herbs. Saw palmetto, at 84.5 mg, sits near the bottom of the amounts (Protoflow bottle label).

  • Vitamin E 13 mg and niacin 75 mg are the only lines with a Daily Value
  • Niacin is above the 35 mg supplement upper limit (NIH ODS, Niacin)
  • The shell is gelatin, and soy protein concentrate is listed

How to read it03

What should you check on any prostate supplement list?

Look for printed amounts, then compare each one with the studied dose.

A label that hides amounts inside a blend cannot be checked. Rules say a proprietary blend must carry that name or a descriptive one (21 CFR 101.36 (eCFR)). Protoflow prints all 14.

The dose test

Trials of saw palmetto used 320 mg a day and up (Barry et al., JAMA 2011 (CAMUS)). An 84.5 mg line is about a quarter of that, and even the full doses showed no gain over placebo.

Compare more in the Protoflow ingredient guide and best prostate supplement ingredients. Check herbs against your medicines first, and keep taking prescriptions.

FAQ04

Ingredient questions

Which prostate supplement ingredient has the most research?

Saw palmetto has the most, including Cochrane's 32 trials and the CAMUS trial, and the results are mostly null (Tacklind et al., Cochrane 2012) (Barry et al., JAMA 2011 (CAMUS)).

Are filler ingredients on a supplement label a problem?

Not by themselves. Protoflow lists rice flour, magnesium stearate, silicon dioxide and maltodextrin as other ingredients (Protoflow bottle label).

Can a label hide how much of each herb is inside?

A proprietary blend is named as one item, so single amounts can go unlisted (21 CFR 101.36 (eCFR)). Protoflow prints all 14.

Should prostate supplement ingredients include a vitamin?

Not necessarily. Vitamin E at high doses was tied to more prostate cancer in a large trial (NIH ODS, Vitamin E).

Where do I find which allergens are in the capsule?

Soy protein concentrate and gelatin are listed in Protoflow's other ingredients. Soy is a major allergen that must be named (FDA, Food Allergies).

Who wrote this05

Written and reviewed by

Written byThe Protoflow label deskMyprotoflow, USA Authorized Protoflow Retailer

Pages built from the label, the brand pages and linked NIH, FDA, FTC, NICE and peer-reviewed sources.

Medically reviewed byGriffin Morrisson, PhysicianRole: Medical reviewerReview date: October 19, 2026

Last updated . See our editorial standards and how we check reviews. This website is run by a USA authorized Protoflow retailer, not by the manufacturer or distributor, PhytoThrive Labs. We make money when you buy through our order links.

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