Every Amount Printed: Reading a Supplement Panel With No Proprietary Blend
A proprietary blend prints one total. The VapoFil panel prints seven amounts. What the rule allows, how to read each line, and why it matters.
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Reference Guides
VapoFil Reference Guides: How to Read a Libido Supplement
Quick answer
Two long guides and five blog articles, all written from the printed label and the published research rather than from any sales page. Start with the libido supplement guide to learn how claims, extract ratios and doses work, then use the ten-point checklist to judge any bottle, VapoFil included. The blog takes one question at a time, from saw palmetto at 20 mg to the 60-day window.
Free to read, with every source linked, and useful whichever bottle you end up buying.
Guides
The two reference guides
Read the guide for the method, then the checklist to use it.
The libido supplement guide
What a label may and may not claim, the ingredients you will meet most often, and the arithmetic behind extract ratios, chelates and elemental amounts. Ends with the situations where a clinician comes before any supplement.
ReferenceChoosing a libido supplement
Ten checks to make before buying any bottle in the category, in the order worth making them, with VapoFil scored on the same ten and marked down where it falls short.
Checklist
Reading paths
Three ways into the VapoFil guides
Where to begin depends on why you are here. Three common starting points:
New to the category
Start with the libido supplement guide and read it in order: the rules on what a label may claim, then the ingredients, then the arithmetic of ratios and chelates. Each section builds on the one before.
Start hereComparing two bottles
Take the ten-point checklist to both labels side by side. A bottle that prints every amount can be scored on dose; one that hides its amounts in a blend cannot.
Side by sideTaking a medicine
Read the guide’s health-first section and the side effects page before anything else, then take the bottle to your appointment: the panel on its side is what a prescriber needs to see.
Health first
Worked example
The VapoFil panel the guides use as their example
Why one real panel runs through both guides, and what it contains.
A worked example teaches more than a description, so both guides use one real label throughout. The VapoFil panel happens to hold most of what a libido label can contain, which makes it a good teaching text for any bottle in the category.
What the panel holds
- Seven lines, each with a printed amount: 118 mg in a two-capsule serving.
- Two extract ratios to convert: tongkat ali 10 mg at 100:1 and horny goat weed 8 mg at 10:1.
- One mineral chelate: 20 mg of boron amino acid chelate at 5%, which is 1 mg of boron itself.
- A Daily Value column marked as not established on every line.
- Other ingredients printed under the panel: microcrystalline cellulose, gelatin, magnesium stearate.
Five facts from the guides worth keeping
- A supplement label may say it supports a function; it may not say it treats a disease.
- An extract ratio multiplies the weight: 10 mg at 100:1 is about 1,000 mg of dry powder.
- Compare extract with extract: the tongkat ali trial used 200 mg of extract a day.
- The adult upper limit for boron is 20 mg a day, so 1 mg a serving sits far below it.
- Laboratories have found 80 hidden drug analogues in products sold as supplements, so the channel you buy through matters.
Blog
Five longer reads from the blog
Each post follows one question the label raises back to its source.
Saw Palmetto at Twenty Milligrams: What the Research Measured, and at What Dose
The trials used 320 to 960 mg a day, mostly for urinary symptoms. What they found, what they say about sexual function, and what 20 mg means.
Wild Yam and Sarsaparilla: The Two Hormone Roots, and What the Research Found
Diosgenin is a laboratory starting material, the only wild yam trial was a cream in women, and sarsaparilla has no human trial in men.
Sixty Days From Purchase and a Four-to-Eight-Week Wait: The Calendar Arithmetic
Buyers judge it at four to eight weeks; the window closes 60 days from purchase. The arithmetic, pack by pack, and a plan that fits inside it.
Buying a Men's Supplement Online Safely: What a Label, a Facility and a Lot Code Prove
The documented hazard is undeclared drugs in marketplace products. What a printed panel, a facility line and a lot code can and cannot prove.
All five are on the VapoFil blog, each with its own references and the date it was last updated.
Scope
What the guides do not do, and where to go instead
Knowing where a reference stops is part of reading it well. Four things these pages leave to others, and who does them better.
Advise on your own health
The guides explain labels and the research behind them. A lasting change in desire or erections, a medicine you take every day or a known condition belongs with a clinician, who can see the whole picture.
Health firstRank brands against each other
No league table of named products appears here. The ten-point checklist gives any reader the means to score two bottles side by side, VapoFil included.
Your own scoringStand in for the agency pages
What a label must carry, and how supplements are regulated, is set out at source by the NIH Office of Dietary Supplements and in the FDA’s questions and answers. The guides quote them and link to them.
Primary sourcesPromise a result or a date
A trial reports what it measured, at what dose, in whom and for how long. None of that is a forecast for one reader, and the guides never turn it into one.
Evidence, not forecasts
Reference pages
Where each question is answered on this website
Six questions buyers ask most, and the page that answers each in full.
How do the amounts compare with the research?
Each printed amount beside the dose its research used.
Research
Method
How these guides are written
Four working rules, the same for every guide and post.
The label comes first
Every product fact starts with the printed label and its Supplement Facts panel.
Then the research, from the abstract
Each study sentence keeps its dose, its population and its outcome.
Then the rules
What a supplement label may claim, from the FDA and the NIH Office of Dietary Supplements.
Corrected in place
Errors are fixed on the page and the date moves forward. Last reviewed September 2026 by Dr. Dustin Moffitt, ND.
Quick answers
Questions the guides answer
Five of the questions readers bring to these guides most often.
Can a libido supplement claim to treat erectile dysfunction?
No. A dietary supplement may say it supports a normal function such as libido or circulation, with the FDA statement beside it. A claim to treat, cure or prevent a disease is a drug claim.
What does 100:1 mean on a supplement label?
It is an extract ratio: about 100 parts of dry plant went into one part of extract. On the VapoFil panel, 10 mg of a 100:1 tongkat ali extract is stated as about 1,000 mg of dry powder.
How should I compare a supplement dose with a study?
Extract with extract, per day rather than per capsule, and in a similar group of people. The libido supplement guide works through each step.
What is the most important check before buying?
That every ingredient has a printed amount, and that you buy through the official checkout. The first lets you judge the formula; the second lets you hold the seller to it.
Why do the guides use the VapoFil label as their example?
Because it prints an amount on every line, two extract ratios and a mineral chelate on one panel, so each conversion a reader meets on other bottles can be shown on a real label. Any other bottle in the category can be read the same way, line by line.
About this review
Who writes the guides
- NIH Office of Dietary Supplements. Boron: Fact Sheet for Health Professionals. https://ods.od.nih.gov/factsheets/Boron-HealthProfessional/
- Leitão AE, Vieira MCS, Pelegrini A, et al. A 6-month, double-blind, placebo-controlled, randomized trial to evaluate the effect of Eurycoma longifolia (Tongkat Ali) and concurrent training on erectile function and testosterone levels in androgen deficiency of aging males (ADAM). Maturitas. 2021;145:78-85. PMID 33541567. https://pubmed.ncbi.nlm.nih.gov/33541567/
- Kuchakulla M, Narasimman M, Soni Y, et al. A systematic review and evidence-based analysis of ingredients in popular male testosterone and erectile dysfunction supplements. Int J Impot Res. 2021;33(3):311-317. PMID 32358510. https://pubmed.ncbi.nlm.nih.gov/32358510/
- Balasubramanian A, Thirumavalavan N, Srivatsav A, et al. An Analysis of Popular Online Erectile Dysfunction Supplements. J Sex Med. 2019;16(6):843-852. PMID 31036522. https://pubmed.ncbi.nlm.nih.gov/31036522/
- Kee CL, Ge X, Gilard V, Malet-Martino M, Low MY. A review of synthetic phosphodiesterase type 5 inhibitors (PDE-5i) found as adulterants in dietary supplements. J Pharm Biomed Anal. 2018;147:250-277. PMID 28903860. https://pubmed.ncbi.nlm.nih.gov/28903860/
- U.S. Food and Drug Administration. Questions and Answers on Dietary Supplements. https://www.fda.gov/food/information-consumers-using-dietary-supplements/questions-and-answers-dietary-supplements
- NIH Office of Dietary Supplements. Dietary Supplements: What You Need to Know. https://ods.od.nih.gov/factsheets/WYNTK-Consumer/
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