Prostadine Review: Ingredients, Doses and Whether It Works
Liquid prostate drops built around seaweed extracts and saw palmetto

Our verdict
Prostadine is the most searched prostate supplement on the market, but its formula leans on kelp, wakame, nori and bladderwrack, ingredients with almost no prostate-specific research. Saw palmetto is in there, but at an undisclosed dose in a 2 ml dropper it is unlikely to reach the 320 mg daily amount used in trials. If you want the ingredients with the best evidence, a plain saw palmetto or beta-sitosterol product gives you more per dollar.
- Best for
- Men who dislike swallowing capsules and want a low-commitment liquid to try alongside the basics (fluid timing, less caffeine, pelvic floor work).
- Skip it if
- You have a thyroid condition (four of the nine ingredients are iodine-rich seaweeds), or you want a product whose label tells you exactly how much of each active you get.
Form
Liquid drops, 2 ml (one full dropper) daily
Price
$69 per bottle (multi-bottle discounts on the vendor page)
Guarantee
60-day money-back guarantee
Ingredients: label dose versus trial dose
This is the table every supplement review should have and almost none do. The middle column is what the label discloses. The right column is what the human trials used. When the label says nothing, we say so.
| Ingredient | On the label | Dose used in trials | Evidence |
|---|---|---|---|
| Nori yaki extract powder Edible seaweed. Rich in iodine and minerals; no human data on urinary symptoms. | Not disclosed (proprietary blend) | No prostate trials | None evidence |
| Wakame extract Contains fucoxanthin, studied for weight and metabolic markers, not for BPH. | Not disclosed | No prostate trials | None evidence |
| Kelp powder Very high in iodine. Combined with the other seaweeds this is the main safety question for thyroid patients. | Not disclosed | No prostate trials | None evidence |
| Bladderwrack powder Another iodine-rich seaweed. Traditional use only. | Not disclosed | No prostate trials | None evidence |
| Saw palmetto The one ingredient with a real trial history. A 2 ml liquid serving cannot plausibly carry 320 mg of lipid extract. | Not disclosed | 320 mg/day of a standardized lipid extract | Mixed evidence |
| Pomegranate extract Antioxidant. The prostate research that exists is on cancer, not urinary symptoms. | Not disclosed | Studied mainly for PSA doubling time in prostate cancer, not BPH | Weak evidence |
| Iodine Added on top of four iodine-rich seaweeds. Total iodine per serving is not stated anywhere on the vendor page. | Not disclosed | Adult RDA 150 mcg; upper limit 1,100 mcg | None evidence |
| Shilajit Small trials on testosterone and fatigue in men. Nothing on prostate size or flow. | Not disclosed | 250 to 500 mg/day in testosterone and fatigue trials | Weak evidence |
| Neem Antimicrobial in lab studies. No human urinary data. | Not disclosed | No prostate trials | None evidence |
What is good
- Liquid format is easy to take and easy to stop
- Contains saw palmetto, the best-studied herbal for urinary symptoms
- 60-day refund window through ClickBank, which honours refunds reliably
What is not
- No ingredient doses disclosed at all
- Five of nine ingredients are seaweeds or iodine with no BPH research
- Iodine load is unknown, which matters if you have any thyroid history
- Price per month is high for what is mostly seaweed
What people say on forums
Themes from public discussion on Reddit and similar forums, paraphrased. Anecdotes, not evidence, but useful for setting expectations.
- Several users report no noticeable change after a few weeks
- Most positive reviews online sit on sites that also sell it
- Frequent confusion about whether it is a drug; it is a supplement and not FDA-evaluated
Frequently asked questions
- Does Prostadine really shrink the prostate?
- No published trial has tested Prostadine itself. Of its ingredients, only saw palmetto has been tested for prostate size, and the results across trials are mixed, with the largest well-run study finding no benefit over placebo.
- Is Prostadine safe to take with tamsulosin?
- There is no known direct interaction, but nobody has studied the combination. The iodine content is the bigger unknown. Show the label to your pharmacist, especially if you take thyroid medication or a blood thinner.
- Where should I buy it?
- Only from the vendor's own site. Forum users repeatedly report counterfeit supplements sold under popular brand names on Amazon, and the refund guarantee only applies to direct purchases.
Decided it is worth a try? Buy only from the official site so the refund guarantee applies.
Related reading
This article is for information only and is not medical advice. Statements about supplements have not been evaluated by the FDA. Do not start, stop or combine supplements with prescription medication without talking to your doctor or pharmacist. If you cannot pass urine, or have chest pain, confusion or fainting, seek emergency care.
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