Natural Factors RxOmega-3 Maximum Triple Strength: IFOS lot results, label against lab
Checked 25 October 2026 · labels from NIH's public label database, January 2026 release
The short answer
IFOS tested 1 lot of Natural Factors RxOmega-3 Maximum Triple Strength, lot 963761. The lab measured 641 mg per softgel of EPA against 600 mg per softgel on the label, and 322 mg per softgel of DHA against 300 mg per softgel.
It holds 963 mg per softgel of EPA and DHA per serving. The middle IFOS product holds 653 mg per softgel.
Source: IFOS lot 963761 report
The latest lot
Natural Factors RxOmega-3 Maximum Triple Strength
Lot 963761 · use by 31 May 2028
Fish oil content, lab against label
| Test | Measured | Label | Result |
|---|---|---|---|
| EPA | 641 mg per softgel | 600 mg per softgel | Meets the label |
| DHA | 322 mg per softgel | 300 mg per softgel | Meets the label |
| Total Omega-3 | 1,090 mg per softgel | 900 mg per softgel | Meets the label |
Contaminants against the limit
| Test | Measured | Limit | Result |
|---|---|---|---|
| PCBs | 1.01 ppb | 45 ppb | Within the limit |
| Dioxins and Furans | 0.143 ppt | 1 ppt | Within the limit |
| Dioxin-Like PCBs | 0.0921 ppt | 1.5 ppt | Within the limit |
Freshness
| Test | Measured | Limit | Result |
|---|---|---|---|
| Acid Value | 0.28 mg KOH/g | 3 mg KOH/g | Within the limit |
| Peroxide | 2.72 meq/kg | 5 meq/kg | Within the limit |
| Anisidine | 4.13 | 20 | Within the limit |
| Total Oxidation | 9.57 | 19.5 | Within the limit |
Heavy metals against the limit
| Test | Measured | Limit | Result |
|---|---|---|---|
| Mercury | < 0.0200 ppm | 0.1 ppm | Within the limit |
| Cadmium | < 0.0200 ppm | 0.1 ppm | Within the limit |
| Lead | < 0.0200 ppm | 0.1 ppm | Within the limit |
| Inorganic Arsenic | < 0.0300 ppm | 0.1 ppm | Within the limit |
Source: IFOS lot 963761 report
Every lot, label against lab
| Lot | Use by | EPA, lab / label | DHA, lab / label | Report |
|---|---|---|---|---|
| 963761 | 31 May 2028 | 641 mg per softgel / 600 mg per softgel | 322 mg per softgel / 300 mg per softgel | Report |
Source: IFOS lot reports, linked on each product, from the IFOS list; checks by Decode, 25 October 2026
How it compares with other IFOS products
- EPA and DHA per serving963 mg per softgel · middle IFOS product: 653 mg per softgel
- Freshness (TOTOX, lower is fresher)9.57 · middle IFOS product: 9.24 · limit 19.5
- Measured against the label107% of the label amount
Source: IFOS list, checked 23 October 2026
The matching NIH label
No NIH label matches this product yet.