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Yerba Prima vs Konsyl Psyllium Husk (2026)
Disclosure: We earn commissions on purchases made through our links. This never influences our scores. Editorial policy
The Verdict
Yerba Prima takes it on our rubric, 94 to 92 on our 0-100 execution score, the two highest scores in our psyllium review, and it holds our Top Pick badge. The margin is narrow and the pillars nearly cancel: Konsyl actually wins purity verification 23 to 22, while Yerba Prima wins value 24 to 21. They tie at a full 25 on dosing and form and a full 23 on transparency, which is what you would expect from two single-ingredient products. Read the value pillar as the deciding factor, because on quality these are close to interchangeable.
In our view Yerba Prima is the better buy on price alone, with the USP verified ingredient as a bonus, and Konsyl is worth the extra four cents a day only if pharmacy-shelf familiarity is what you want. The real caveat is texture rather than brand: whole husks are coarse and gel thick in water, and both are unflavored, so if you have bounced off psyllium before, the format is probably the reason rather than the label.
Psyllium Whole Husks
Yerba Prima
Original Psyllium Fiber
Konsyl
Head-to-Head Comparison
| Category | Psyllium Whole Husks Yerba Prima | Original Psyllium Fiber Konsyl |
|---|---|---|
| Brand Score | 94/100Winner | 92/100 |
| Dosing & Form | 25/25Winner | 25/25 |
| Purity | 22/25 | 23/25Winner |
| Value | 24/25Winner | 21/25 |
| Transparency | 23/25Winner | 23/25 |
| Cost/Day | $0.11Winner | $0.15 |
| Dose/Serving | 6g | 6g |
| Form | whole psyllium husk powder | psyllium husk powder |
| Third-Party Tested | ✓ Yes | ✓ Yes |
| Proprietary Blend | No | No |
Why This Comparison Matters
These are both single-ingredient psyllium husk products with nothing added: no sugar, no sweetener, no flavoring, no filler. Both deliver 6g per serving, comfortably inside the 5 to 10g daily range our profile uses, and both are the plain-husk format the FDA-recognized soluble fiber heart health claim is built on at roughly 10g of whole husk per day.
One verification difference separates them. Yerba Prima uses a USP verified ingredient, the strongest third-party marker available here; Konsyl is GMP certified but carries no independent USP or NSF certification. Konsyl's counterweight is track record: per our notes it has been a pharmacy-recommended psyllium brand for decades, which is why it holds our Pharmacist Pick badge.
On cost, Yerba Prima is about $0.11 per day at the 5g minimum effective dose from 64 servings at $21.49; Konsyl is about $0.15 per day from 57 servings at $25.99. Both rose in price in 2026. We scored both on dosing and form, purity verification, value, and label transparency.
Detailed Score Breakdown
Psyllium Whole Husks
Yerba Prima
Pure psyllium husk at a clinically effective dose per serving. Psyllium has FDA-approved health claims and strong meta-analytic evidence for cholesterol, glucose, and bowel regularity.
USP verified ingredient. GMP certified facility. Clean product with no additives, sweeteners, or fillers. Organic option available.
$0.11/day at the minimum effective dose (5g) after the 2026 price rise - still among the cheapest clean single-ingredient husks, and the only USP-verified one here
Single-ingredient product: psyllium husk. No proprietary blends, no hidden ingredients, no fillers. The label is as simple as it gets.
The cleanest and cheapest way to get a clinically effective dose of psyllium. No sugar, no sweeteners, no flavoring - just psyllium husk. The benchmark product in this category.
Original Psyllium Fiber
Konsyl
Pure psyllium husk with the same strong evidence base. 6g psyllium per serving delivers well within the clinically effective range.
Konsyl has been a pharmacy-recommended psyllium brand for decades. GMP certified, no additives. The unflavored version is 100% psyllium husk powder.
$0.15/day at minimum effective dose after the 2026 rise - pricier than the bulk powders but reasonable for a pharmacy-grade single-ingredient husk
Single ingredient, fully disclosed. No proprietary blends, no sweeteners, no coloring. Clear dosing instructions on label.
A pharmacy-grade psyllium product that has been recommended by pharmacists and gastroenterologists for decades. Pure formulation with no additives.
How We Compared These Products
Every product in our database is scored on four equally-weighted pillars: dosing accuracy and form quality, purity verification (third-party testing), cost per clinically effective dose (not cost per pill), and label transparency. Each pillar is worth 25 points for a total of 100.
Cost per effective dose is calculated using the clinically studied dose from published research, not the manufacturer's suggested serving. If a product requires multiple servings to reach the dose used in clinical trials, that cost is reflected in the value score.
For a full explanation of our scoring methodology, see our methodology page. Prices were last checked on the dates listed for each product and may have changed.
Frequently Asked Questions
Is either psyllium USP verified?
Yerba Prima uses a USP verified ingredient, which our notes call the gold-standard third-party seal. Konsyl is GMP certified with no independent USP or NSF certification. Konsyl still edges our purity verification pillar 23 to 22 on the strength of its overall quality profile, so the seal is not the whole picture.
How much psyllium husk do you need per day?
Per our profile, 5 to 10g per day split into 2 or 3 doses, each taken with at least 8 oz of water. The FDA-recognized heart health claim requires 7g of soluble fiber from psyllium daily, which is roughly 10g of whole husk. Both products deliver 6g per serving, so one serving clears the minimum and two clear the claim threshold.
Which psyllium is cheaper per day?
Yerba Prima, at about $0.11 per day at the 5g minimum effective dose against Konsyl at about $0.15. The containers are $21.49 for 64 servings and $25.99 for 57 servings respectively. Our notes flag that both took a price rise in 2026.
More Psyllium Husk Comparisons
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FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. Dietary supplements are not intended to diagnose, treat, cure, or prevent any disease. Always consult with a qualified healthcare professional before starting any supplement regimen.