Capsule count is not a supply: one bottle here is 300 capsules and 300 servings, another is 300 and 100. One listing claims vegan and lists gelatin.
DEAL SUPPLEMENT
Why we like it
BodyBio
Why we like it
BESHA INC
Why we like it
Now Foods
Why we like it
Humann
Why we like it| Product | Rank | Brand | Best For | Score |
|---|---|---|---|---|
| Psyllium Husk 1500mg Per Serving, 300 Cap... | #1 | DEAL SUPPLEMENT | Clearest Label | 9.8 |
| BodyBio PC Phosphatidylcholine Liquid, 8 ... | #2 | BodyBio | Best Documented Testing | 9.6 |
| BESHA INC Verisol Collagen Bioactive Pept... | #3 | BESHA INC | Named Branded Ingredient | 9.4 |
| Now Foods L-Tyrosine 500mg, 300 Capsules,... | #4 | Now Foods | Most Servings Per Bottle | 9.3 |
| Humann SuperBeets Beet Root Capsules Quic... | #5 | Humann | Best Known Brand | 9.1 |
Buyer checklist
This is a comparison of labels and listings, not of health effects, and the distinction is the whole point of the page. We read all five listings off the live Amazon.com pages, bullets and detail tables both, and recorded only what is countable: the dose stated, how many units are in the container, how many servings that actually works out to, whether the blend is broken down by ingredient, what testing is described and by whom, where the product is made, and what allergens or exclusions are stated. Every one of these products is a dietary supplement, which in the United States means its claims are structure and function claims that have not been evaluated by the Food and Drug Administration for the treatment of any condition, and the listings say so in their own fine print. We have not repeated any product's claims about what it supports as though they were findings, we have not tested anything, and we are not in a position to tell anyone whether a supplement is appropriate for them. That is a conversation for a doctor or a pharmacist, who can also check interactions with medicines you already take, which is the part of this subject a product listing cannot help with at all.
Because a capsule is not a dose. Two bottles on this page both hold 300 capsules: the Now Foods bottle is 300 servings because the directions are one capsule, and the DEAL Supplement bottle is 100 servings because its serving is three capsules. The Life Extension bottle holds 150 capsules and states a 50-day supply, again three per serving. So the headline count can overstate how long a bottle lasts by a factor of three, and comparing two products on capsule count alone can get the cost per serving exactly backwards. The number to find is servings per container, which four of these five state outright.
It means a laboratory with no commercial interest in the result tested the product, and the value of the phrase depends entirely on how specific the listing is. BodyBio describes the strongest version here: testing in its own lab first, then again at certified third-party facilities meeting cGMP standards, which is the US manufacturing-practice framework. DEAL Supplement states third-party lab tested and passed. By contrast one listing in this group says only laboratory tested without naming who tested it, which could mean the manufacturer's own bench. None of this speaks to whether an ingredient does anything; it speaks to whether what is on the label is what is in the bottle, which is a different and more checkable question.
It means the ingredient is traceable to a specific supplier and specification rather than being a generic commodity, which is a real if limited piece of information. Two products here name one: the BESHA powder uses Verisol, a patented collagen peptide, and the Life Extension capsules use Magtein, a branded magnesium L-threonate. A branded ingredient usually has published specifications and often published research behind the ingredient itself, which is not the same as research on the finished product you are buying, and it is certainly not a health claim. What it does give you is something you can look up independently, which a label reading simply magnesium does not.
Put everything on a cost-per-serving basis, which is the only figure that crosses forms. A bottle, a tub and a dropper bottle cannot be compared by weight or volume, because the serving sizes are completely different: the BodyBio liquid states 79 servings from 8 fluid ounces, the BESHA powder states 63 servings from 6.7 ounces, and the capsule products state theirs in capsules. Divide the price by servings per container and the comparison becomes real. The form itself is a practical choice rather than a quality one: capsules are portable and tasteless, powders mix into food and allow adjustable amounts, and liquids suit anyone who cannot swallow capsules.