Wiley's Finest Peak EPA: what the IFOS report shows
Last reviewed July 2026.
This is what the paperwork behind Wild Alaskan Fish Oil, Peak EPA, 1250 mg, 120 Softgels actually says. The tested lot (124068, expired 02/2021) carries an IFOS certificate — the public, per-lot consumer report, and the numbers below come from that report, not from the label.
No current lot. This lot expired 02/2021. On 2026-10-03 Nutrasource's certified-products database returned no Wiley's Finest product, brand or lot (searches for Wiley, Peak EPA and lot 124068), and Wiley's Finest's own site offers test results only on request. The figures below are from this expired lot.
The tested numbers, from lot 124068 (expired 02/2021)
- Measured EPA: 873 mg per serving
- Measured DHA: 277 mg per serving
- Combined EPA+DHA: 1150 mg per serving — 115% of the 1000 mg label claim (over-delivers)
- TOTOX (freshness): 3.49 — fresh (what TOTOX means)
- Heavy metals: every result marked IFOS-compliant in the tested lot (values below)
- Form: TG (triglyceride — the form found in fish)
- IFOS rating: 5 out of 5 stars for this lot (expired 02/2021)
Read the IFOS report for lot 124068 yourself ↗ — that document, not this page, is the source of truth.
Freshness, contaminants and heavy metals, from lot 124068
Every result as printed on the IFOS certificate, read 2026-10-04; “<” means below the lab's reporting limit. The limits are the certificate's own and the GOED Voluntary Monograph (version 9.1). (figures from lot 124068, which expired 02/2021; no current lot is published)
| Test | Result | IFOS limit | GOED limit |
|---|---|---|---|
| Peroxide value | 1.37 meq/kg (lot expired 02/2021) | 5 meq/kg | 5 meq/kg |
| Anisidine value | 0.75 (lot expired 02/2021) | 20 | 20 |
| TOTOX | 3.49 (lot expired 02/2021) | 19.5 | 26 |
| Acid value | 0.18 mg KOH/g (lot expired 02/2021) | 3 mg KOH/g | — |
| PCBs | 24.8 ppb (lot expired 02/2021) | 45 ppb | 90 ppb |
| Dioxins and furans | 0.173 ppt (lot expired 02/2021) | 1 ppt | 1.75 ppt WHO-TEQ |
| Dioxin-like PCBs | 0.283 ppt (lot expired 02/2021) | 1.5 ppt | 3 ppt WHO-TEQ |
| Mercury | <0.005 ppm (lot expired 02/2021) | 0.1 ppm | 0.1 ppm |
| Lead | <0.02 ppm (lot expired 02/2021) | 0.1 ppm | 0.05 ppm |
| Cadmium | <0.01 ppm (lot expired 02/2021) | 0.1 ppm | 0.1 ppm |
| Total arsenic | <0.05 ppm (lot expired 02/2021) | 0.1 ppm | 0.1 ppm (inorganic) |
Compared with the other fish oils: oxidation values by product · heavy metals by product
What a gram of it costs
As an Amazon Associate we earn from qualifying purchases, at no extra cost to you — commission never changes a ranking or a verdict (how this site is funded).
At $79.22 for 120 servings (iherb.com, 2026-07-03, not Amazon's price; check it on Amazon ↗), this works out to $0.57 per gram of measured EPA+DHA — #10 of 12 tested products we track. The sticker price and the per-gram price rank very differently; the full ranking shows exactly what beats it. These figures come from lot 124068, which expired 02/2021; no current lot's certificate is published.
FAQ
Is Wiley's Finest Peak EPA third-party tested?
Only an expired lot is public: lot 124068 (expiry 02/2021) was tested under the IFOS program and its certificate is linked from this page, but no current lot's certificate is published.
How much EPA and DHA does Wiley's Finest Peak EPA contain per serving?
The tested batch measured 873 mg EPA and 277 mg DHA — 1150 mg combined EPA+DHA per serving, 115% of the 1000 mg label claim. These figures come from lot 124068, which expired 02/2021; no current lot's certificate is published.
What is the TOTOX of Wiley's Finest Peak EPA?
3.49, from lot 124068's IFOS certificate (peroxide 1.37 meq/kg, anisidine 0.75), read 2026-10-04. IFOS's limit is 19.5 and GOED's is 26. These figures come from lot 124068, which expired 02/2021; no current lot's certificate is published.
Does Wiley's Finest Peak EPA contain heavy metals?
Wiley's Finest Peak EPA, lot 124068: mercury <0.005 ppm, lead <0.02 ppm, cadmium <0.01 ppm, total arsenic <0.05 ppm, each marked IFOS-compliant (certificate read 2026-10-04). These figures come from lot 124068, which expired 02/2021; no current lot's certificate is published.
Related: Is Wiley's Finest third-party tested? · Wiley's Finest cost per gram & is it worth it
This page summarizes published third-party testing data and makes no health, benefit, or treatment claims. A certificate describes one tested batch, not a permanent grade.
Some product links on this page are affiliate links: as an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Affiliate status never changes a ranking or a verdict — full affiliate disclosure.