WHC Quattr03 + PS
Labdoor graded this product but printed no assay: a grade, not a measurement.
Grade only · “being tested” Retrieved Oct 23, 2026 One public record
What this record tells you
Read Oct 23, 2026- No public lab numbers exist for this bottle in the eight sources we read. Labdoor’s grade is a letter, not a measurement.
- The evidence score reads 0% of the rubric for this record (); null is the score on that part only, not a grade of the bottle.
- 6 of 849 omega-3 bottles do have printed numbers or a recall.

What you can do
Each step opens to what to look for. Nothing here is a verdict on the bottle.
Ask WHC Quattr03 + for the certificate of analysis5 things to ask for
- The lot number printed on your bottle, and the certificate of analysis for that lot
- Each active ingredient as measured, against the label claim, in the label’s unit
- Lead, arsenic, cadmium and mercury results, each with the limit the lab used
- The laboratory’s name, the test method and the test date
- Whether the laboratory is independent of the brand
A certificate the brand commissions is manufacturer-sourced; read it as the brand’s own document.
Compare with the omega-3 bottles that have numbers4 bottles
- Legion Triton Fish Oil: potency at 119% and 114% of the label claim and metals under the limits its documents printed.
- Viva Naturals Triple Strength Omega-3 Fish Oil: potency at 112% and 106% of the label claim and metals under the limits its documents printed.
- WHC QuattrO3 + PS Fish Oil for Children: potency at 147% and 104% of the label claim and metals under the limits its documents printed.
- WHC UnoCardio X2, EU: potency at 105% and 106% of the label claim and metals under the limits its documents printed.
How the evidence score reads this record
Rubric-1 scores the published evidence, not the product. A part with nothing public is left unscored, never counted as zero.
Rubric-1
0% of the rubric could be scored- Evidence score
- Not scored
- Rubric coverage
- 0%
| Part of the rubric | Points | What it read |
|---|---|---|
| Recency of independent measured results | Not scored | No independent measured result. |
| Independent source count | Not scored | No independent organization. |
| Quantitative concordance | Not scored | Displayed. No source-stated pass or fail. |
| Method transparency | Not scored | Not published |
| Certification | Not scored | Not listed or expired. |
| Failure and warning | Not scored | Enforcement scan not completed. |
Every public record
In reading order, each with the sentence that holds the figure, its link and the date we retrieved it.
One record
- LabdoorGrade only
This product is being tested.
labdoor.com/review/whc-quattr03-ps · retrieved Oct 23, 2026
Keep looking
Keep reading: Supplements and vitamins
Supplements and vitamins: every pageSupplement & Nutrient EncyclopediaBrowse all topics
- Previous in this topicMorikawa Kenkodo Kids IQ: public test recordsMorikawa Kenkodo Kids IQ: potency at 113% and 233% of the label claim, metals under the limits its documents printed and no lot or test date.
- Next in this topicWHC UnoCardio 1000, EU: public test recordsGrade only · “being tested”.
- Whey protein (and other protein powders)Whey is a complete milk protein sold as powders and drinks; it supplies all essential amino acids used to build and repair muscle.
- Compare omega-3 supplements: fish, krill and algal oils rankedFish oil, krill oil and algal omega-3 supplements ranked on EPA + DHA per serving, cost per gram, form and independent purity tests, with goal lenses and a dose and cost…
- Multivitamin (multivitamin/mineral)A multivitamin/mineral (MVM) is a supplement combining several vitamins and minerals, usually near daily-value amounts; no legal definition fixes its contents.