Journal

The Prostacylsupport journal

Last updated October 12, 2026Who wrote and checked this page

Three long pieces, each built around a method rather than an opinion. The product pages on this site record what is printed on one bottle and what the printed figures turn out to mean. These three take the techniques used to read that label and set them out so they can be run on any label on any shelf.

Three long pieces, each built on a method rather than an opinion. The first is about why a standardisation percentage beats a milligram figure, worked twice on this panel. The second is about why one nutrient has two different upper limits. The third is a checksum investigation into ten reviewer portraits. Each one shows its working.

Pieces: Three
Last updated: October 12, 2026
Panel rows: 9, every one with an amount
Proprietary blend: None
Rows printing a percentage: 2 of 9
Portraits found elsewhere: 8 of 10
Portraits matching nothing: 2 of 10
Score: 2.9 out of 5

The three pieces

Each one is long, each one shows its working, and each one closes with a procedure rather than a judgement. All three carry the date October 12, 2026, which is when the set was last read against its sources.

The Bigger Number That Delivers LessA standardisation percentage beats a milligram figure, and this panel proves it twice. Pygeum at 200 mg standardised to 3% delivers 6 mg of phytosterols, against 13 mg from the 13% extract at about 100 mg a day that the clinical literature uses — twice the printed weight, under half the measured constituent. Then lycopene: 5% of 10 mg is 0.5 mg, against 15 mg in the trial and 21.96 mg in one cup of tomato juice. The essential point, made generously: the only reason either sum is possible is that this label prints the percentages.Two Upper LimitsWhy the same nutrient has different safe-intake ceilings in different places, and what a reader should do with that. Vitamin B6 is the case: 13.8 mg here, 812% of the US Daily Value and the arithmetic is correct, comfortably under the US limit of 100 mg a day, and about 15% above the 12 mg limit EFSA set in 2023. What a Tolerable Upper Intake Level is and is not, what the neuropathy literature actually shows, and why two expert bodies reading one literature land in different places. Then boron at half its limit.Eight of TenA checksum investigation, written as a method piece. What an MD5 digest is in plain language, why byte-identical means the same file rather than a similar photograph, exactly how the check was run, and how anyone repeats it in one command. The result: 8 of the 10 portraits on this product's review page are byte-identical to portraits carrying different names, ages and cities on other brands’ sites — and 2 are not, which is reported at the same weight and treated as a limit of the method. Then exactly what that does and does not establish.

If you read only one, read the first. It is the piece that changes what you look at on a shelf, and it is the one the other two borrow their method from: find the two figures that have to be read together, multiply or divide them, and write the product down beside the row.

What this journal is for

A short statement of purpose, because a section like this one is easy to misread as either advertising or campaigning, and it is meant to be neither.

The product pages on this site do one job. They record what the merchant published about Prostacyl, what the merchant did not publish, and what the published figures mean once the arithmetic is done. That job is narrow on purpose. It is also not transferable — nothing on those pages helps a reader with the next bottle they pick up.

This journal exists for the transferable part. Reading one unusually well-documented label closely teaches three techniques that work on any label: how to read a standardisation percentage against a milligram figure, how to set a nutrient amount against an upper limit when two different limits exist, and how to test a photograph without recognising a face. Each piece here is one of those techniques, written out at length, with this product as the worked case because a method with no example is just an assertion about method.

There is a second reason, and it is less comfortable. A desk that publishes findings about a product has to be checkable itself. Printing the procedure — the multiplications, the divisions, the commands, the places where the method runs out — is what lets a reader disagree with a specific step instead of deciding whether to trust a stranger. The rules the desk writes under are set out in full on the about page.

What this journal is not: a place for verdicts. None of the three pieces concludes that this product is good, bad, effective or useless, and none of them will. Two of the three report findings that run against the label, and all three report, at the same length, that this is the most transparent label in this series and that the arithmetic was only possible because of it.

Prostacyl — 60 capsules, two a dayNine ingredients, each with a printed amount and no proprietary blend — the most transparent panel in this series. 60 or 90 days — the page prints both. From $49 a bottle on the six-pack.

Order now See the three packs

What the three have in common

They are not three opinions about one bottle. They are three techniques, each with a worked example on the same product, and each of which would survive being run on a different one tomorrow.

A method, not a verdict

Each piece closes with a numbered procedure. Seven habits for reading a standardised ingredient row. Six steps for setting a nutrient amount against an upper limit. Eight for running a checksum over a set of supplied portraits. The worked example is this product; the method is not about it, and it will still work on the next bottle you pick up.

Working shown, every time

Every derived figure is published with the sum that produced it, so a reader can disagree with a step rather than with a conclusion. Two hundred times 0.03 is six. Ten times 0.05 is a half. The checksum digests are printed in full, thirty-two characters a row, so the result can be reproduced in one command.

Both halves of every finding

Where this product does something well, the credit is printed at the same length as the criticism and in the same voice. This is the most transparent label in this series: nine ingredients, nine printed amounts, no proprietary blend, species and plant parts named, two rows standardised. Every piece here says so, because the arithmetic in all three of them is only possible because of it.

The third card is the one most often left out of writing like this, and leaving it out is what turns a useful page into advocacy. This product scores 2.9 out of 5 on this site, the highest in the series, and the reason is the first line of the score: nine rows, nine amounts, no proprietary blend. The panel is transcribed in full with every finding on it numbered, credits included.

The figures they share

Eight figures run through the three pieces. Every one is either printed on the merchant's material, a printed amount multiplied by a printed standardisation, or counted from the supplied files themselves.

The figures the three pieces are built on, and where each one comes from.
Figure	Value	Where it comes from
Panel rows	9	The Supplement Facts panel on the label artwork
Rows carrying an amount	9 of 9	Every one. No proprietary blend, nothing hidden behind a total
Rows printing a standardisation	2 of 9	Pygeum at 3% and lycopene at 5%
Pygeum phytosterols delivered	6 mg	200 × 0.03 — two printed figures
Lycopene delivered	0.5 mg	10 × 0.05 — two printed figures
Vitamin B6	13.8 mg, 812% DV	Printed on the panel, and the percentage is correct
The two B6 upper limits	100 mg and 12 mg a day	The US Food and Nutrition Board, and EFSA in 2023
Portraits byte-identical elsewhere	8 of 10	MD5 digests over the supplied files, printed in full

Two of those eight need their qualifier carried with them wherever they go. The 6 mg and 0.5 mg figures are quantities of a measured constituent, not of the extract, and they only exist because the label printed the percentages they were multiplied by. And the 8 of 10 portrait figure is a count of files: 2 of the ten matched nothing this desk holds, which is a statement about a finite comparison set and not about those two files.

The rules these pieces are written under

Short, and applied without exception, because the value of writing like this is mostly in what it refuses to do.

Never invent a figure. If it is not printed on the supplied material or published by a cited body, it does not appear. Where something was not supplied, the page says not published and goes on saying it.
Show the multiplication the first time. Every derived figure on this site is a printed amount, or a printed amount times a printed standardisation, and the sum is written out where the figure first appears.
Name the source in the same sentence. A Daily Value, an upper limit, a trial dose or a USDA food figure is attributed where it is used, not in a footnote at the bottom.
The label wins over the marketing. The seller pack states that no panel was printed on the sales page. The label artwork carries a complete one. Both are reported, and the label is treated as the product.
No speculation about how a supplied photograph was produced. What can be established about the ten portraits is established by arithmetic on the files, and it is reported exactly that far and no further.
No invented reviewer. The reviewer slot on every page of this site is vacant rather than filled with a name, and no reviewer markup is emitted.
No rating markup. The merchant's supplied score, review count, order count, recommend rate and median wait are printed as the merchant's claims and labelled as such. None is used to generate structured data.
Credit is printed at the same length as criticism. A page that only attacks the best label in this series would read as advocacy and would be less useful than one that keeps score honestly.

The fifth and the eighth are the ones readers ask about most. The reviews page explains why the supplied reviews and portraits are printed in full rather than left out — leaving them out would protect the material, and the material is the finding. The ingredients page shows what keeping score honestly looks like row by row: the credits and the shortfalls on the same page, in the same voice, for all nine.

Questions about this section

Four questions readers send about the journal itself rather than about the product.

Are these product reviews?

No. They are method pieces that happen to have a worked example on one label. Each closes with a procedure written to be run on any supplement, and none of the three ends in a verdict about whether this product works, because no document that would support such a verdict has been published.

Which one should I read first?

The first, on standardisation percentages, because it is the one that changes how you read a shelf. It is also the piece that explains why this product's label deserves credit even where the arithmetic runs against it: the sums only exist because the percentages are printed.

Do these pages say the product does not work?

No, and none of them will. The findings are about what the printed figures turn out to mean once the arithmetic is done, and about two documents — a review block and a label — that score very differently. Neither is a prediction about any person.

Why is there no named reviewer on these pages?

Because nothing has been shown to this desk connecting any clinician to this product: no signed statement, no dated review, no correspondence. The slot stays vacant site-wide and is filled only when a named person with a stated credential has read the pages and agreed to be named on them, with the date printed beside the name.

One more thing worth stating here rather than in a footnote. The product FAQ answers the common questions off the supplied material, and where the material answers nothing, it says so instead of filling the gap.

References

Every source cited anywhere in this section, all opened and read. None of them mentions Prostacyl and none was written about it; each is cited for what it says about a labelling obligation, an upper limit, a published dose or a food figure.

U.S. Food and Drug Administration (2026). Dietary Supplement Labeling Guide: Chapter IV, Nutrition Labeling (21 CFR 101.36).
National Institutes of Health, Office of Dietary Supplements (2026). Vitamin E: Fact Sheet for Health Professionals.
National Institutes of Health, Office of Dietary Supplements (2026). Vitamin B6: Fact Sheet for Health Professionals.
National Institutes of Health, Office of Dietary Supplements (2026). Boron: Fact Sheet for Health Professionals.
American Academy of Family Physicians (2012). Saw Palmetto Ineffective for Lower Urinary Tract Symptoms (Barry et al., JAMA 2011).
PeaceHealth / Natural Medicines monograph (2026). Pygeum: dosage, standardisation to 13% total sterols, and evidence rating.
Drugs.com natural products database (2026). Nettles (Urtica dioica): root doses used in BPH trials, and leaf uses.
FoodNavigator, reporting Schwarz et al., Journal of Nutrition 138:49-53 (2008). Lycopene 15 mg a day for six months in 40 men with BPH.
U.S. Department of Agriculture, National Agricultural Library (2026). Lycopene content of tomato products, per household measure.
U.S. Federal Trade Commission (2026). Complying with the Made in USA Standard, and the Made in USA Labeling Rule (16 CFR Part 323).
U.S. Food and Drug Administration (2026). Structure/Function Claims for Dietary Supplements.
U.S. Food and Drug Administration (2026). Current Good Manufacturing Practice for Dietary Supplements (21 CFR Part 111).

What people type before they buy

What is actually in it

Doses against the research

Safety and limits

Money, refunds and delivery

Who sells it and who makes it

Read the panel before you decide

Sixty capsules, two a day, thirty days a bottle. The Supplement Facts panel declares nine ingredients and nine amounts, with no proprietary blend — the most transparent label in this series. Four of those nine rows change meaning once the arithmetic is done, and all four sums are shown in full. One bottle is $69; six are $49 each. The refund window is printed as 60 days in one place and 90 in another.

1 bottle60 capsules30 days$69 · $2.30 a day 3 bottles180 capsules90 daysNo total published 6 bottles360 capsules180 days$49 each · free shipping

Order Prostacyl now Compare the packs

60 or 90 days — the page prints both
Nine ingredients, nine printed amounts, no blend
Returns to 1370 Avenue of the Americas, Floor 4, New York, NY 10019, USA

Prices as printed on the sales page, as of October 12, 2026: one bottle $69, six bottles $49 each with free shipping. The three-bottle total is not published, so it is left blank rather than estimated. The refund window is printed as 60 days in one place and 90 in another — confirm it at the checkout. Questions first? Every published contact route is here.

Keep reading

The whole panel, transcribedNine rows as printed, with every finding on them numbered.Row by row, with the sumsWhat is printed, what the serving delivers, and what the published work used.The guidesThe same methods kept as standing references, with a glossary.All ten, exactly as suppliedThe supplied texts and portraits in full, with the digests beside them.

Authorship and review

Who wrote and checked this page

Written byThe Prostacyl Editorial DeskLabel analysis and fact-checking

Medically reviewed byDr. Akhil Saji, MD, PhysicianA named clinician or dietitian, once one has read these pages.

RoleMedical reviewerChecks the label transcription, the arithmetic and every safety statement on this page.

Review dateOctober 12, 2026The date a named reviewer signed off this page.

Who reviews these pages?

What this page was checked against

The label artwork, read at 2× and transcribed character for character. Where the label and the marketing disagree, the label is printed.
The seller pack, quoted rather than paraphrased, and identified as marketing wherever it is used.
The published sources listed in the references on this page. Every one was opened and read; none is cited from memory.
The arithmetic, shown in full. Every amount on this panel is printed, so the figures here are conversions of printed amounts with the working given, never ceilings and never estimates.
Nothing else. Any fact that was not supplied is recorded as not published rather than filled in.

Last updated October 12, 2026. A highlighted slot is a value no human has supplied yet. Who reviews these pages?