EPAX and TGN: Decoding the Purity Behind NNP’s High-Concentration Deep-Sea Fish Oil
With hundreds of fish oil brands on the market, the hardest question for most shoppers isn’t whether to take Omega-3 — it’s which brand to actually trust. Prices range from budget to premium, but few brands can clearly explain where their raw material comes from, how it’s processed, or how pure it really is. NNP takes a more transparent approach: its core ingredient comes directly from EPAX®, a well-known Nordic Omega-3 supplier.
The Source Sets the Ceiling: Nearly Two Centuries of EPAX®
EPAX®’s history traces back to 1838 in Bergen, Norway, starting with cod liver oil production and growing into one of the world’s longest-established and highest-quality marine Omega-3 suppliers. Its production facility sits in Ålesund, one of Norway’s major fishing ports with access to prime wild-catch fisheries in the Atlantic — giving its raw fish a freshness and fatty-acid profile that many brands relying on secondary fisheries or farmed fish simply can’t match.
Just as important, EPAX®’s facility is cGMP-compliant, FDA-inspected, and approved by the Norwegian Medicines Agency to manufacture active pharmaceutical ingredients — a quality bar well above typical “food grade” fish oil, backed by over a hundred peer-reviewed clinical studies. By building around EPAX® as its primary supplier, NNP holds the sourcing step — the one shoppers most often overlook, yet the one that matters most — to a genuinely high standard.
Most “High-Concentration” Fish Oil Is Actually Ethyl Ester
Here’s something most shoppers don’t realize: most fish oil capsules marketed as “high concentration” or “high purity” are in ethyl ester (EE) form, simply because EE is cheaper to produce and easier to standardize. But EE isn’t the fish’s natural form — molecular distillation strips the fatty acids off their natural glycerol backbone and reattaches them to ethanol molecules instead, a structural change that requires an extra enzymatic step for the body to process, making it less efficient to absorb.
NNP’s fish oil is made in TGN (re-esterified triglyceride) form — taking EE one step further by re-attaching the fatty acids back onto a glycerol backbone, restoring a structure very close to natural fish oil. That extra processing step costs more, which is exactly why genuinely TGN-form, high-concentration fish oil is relatively rare on the market. In NNP’s Pristine Pure® Epax Omega-3, over 90% of the EPA+DHA in every 500 mg softgel exists in triglyceride form — a concentration and conversion purity that leads among comparable TGN products.
What Sets NNP Apart From Ordinary Fish Oil
Structurally, ordinary EE fish oil is a lab-processed, non-natural form, while NNP’s TGN fish oil restores a structure that matches natural fish oil and the DHA found in breast milk. On sourcing, many market products pass through several layers of traders with little traceability, while NNP’s core material comes directly from EPAX® through a highly vertically integrated supply chain, carrying certifications such as Friend of the Sea and MarinTrust. On quality control, standard food-grade fish oil facilities typically fall short of pharmaceutical-industry standards, while NNP leverages EPAX®’s sourcing to bring consumers top-grade raw material quality at a supplement price point.
A concentration number alone doesn’t tell you whether a fish oil is trustworthy. The more meaningful benchmarks are whether residues of heavy metals, dioxins, and PCBs fall below GOED international fish oil standards, and the Totox value — an internationally recognized measure of freshness and oxidation, where a lower number means fresher oil that’s less prone to rancidity. EPAX®’s raw material consistently outperforms GOED and European Pharmacopoeia standards on both measures — the real foundation of NNP’s quality, not just the concentration printed on the label.
A Nutritionist’s Choice
Our registered nutritionist Sarah looks for two things above all when choosing an Omega-3 product for clients: reliable sourcing, and a chemical form that’s favorable for absorption. After trying a number of brands, she chose this high-concentration TGN fish oil from NNP as part of her own daily routine, and reports being satisfied with the results after three months.
Choosing a fish oil ultimately comes down to how much you’re willing to pay for absorption efficiency and sourcing transparency. NNP chose the costlier TGN process over the more common EE route, and built its supply chain around EPAX® — a Nordic supplier with nearly two centuries of history and over a hundred clinical studies behind it. If what matters to you isn’t just “did I take a fish oil today” but “how much of it can my body actually absorb,” the raw material’s origin, its processing form, and third-party test data are the questions worth asking.
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Usage guidance: one softgel daily for general wellness support; those with underlying conditions or inflammation may take 2–4 softgels daily — consult your doctor first.