Alkylglycerols — which are naturally occurring ether lipids with potent antioxidants – support the immune system.* And, studies show they may help to protect the body from free radicals.*
Our Ratfish Liver Oil has a mild, buttery taste and is sourced from one of the oldest fish species known to man — the Ratfish (Chimaera monstrosa). So abundant in rare nutrients, the Norwegian Vikings and Scandinavian fishermen used ratfish liver oil holistically and regarded it as a treasured gift from the sea.*
The Rosita® family continues to create ratfish liver oil today, to share rich, ancient sustenance with people who are passionate about real food supplements. It’s the only Ratfish Liver Oil in the world — and it’s fresh, raw and unadulterated. Sourced from a prehistoric, unique species (with striking blue eyes, spots and a tail!), nothing comes close.
When you try a bottle, you’ll experience:
- 100% ratfish liver oil, wild-caught from the pristine Norwegian fjords
- Unprocessed, raw and additive-free
- A concentration of alkylglycerols (biologically active lipids)
- A full spectrum of omega fatty acids, including omega-3 EPA and DHA + phytosterols
- Pure oil with a unique lipid profile and naturally occurring antioxidants help maintain freshness
- So stable that nitrogen flushing is not needed
- Handcrafted in small batches
- A mild, buttery taste
- Also available in convenient softgels
What is Ratfish Liver Oil?
Ratfish belong to the subclass Holocephali, which dates back to the Devonian period, over 400 million years ago. This makes them one of the oldest groups of jawed vertebrates, and they only swim in deep waters.
If you’re unfamiliar with this supplement, it’s the real oil in the cells of fresh liver from the ratfish (Chimaera monstrosa). An ancient, whole food that’s straw-colored and gentle in flavor and scent.
We craft Rosita® Extra Virgin Ratfish Oil using a rare, generations-old cold extraction technique that naturally releases the oil from the hand-picked livers (with a gentle temperature shift). This can only be accomplished with healthy livers from freshly caught, wild ratfish.
Then, it's gently purified using a natural ocean substance that binds to contaminants, followed by filtering.
To protect and preserve the oil’s inherent nutrients, we never use heat, chemicals, steam, metals or mechanical pressure. This all means your Ratfish Liver Oil maintains the same form and nutritional composition that nature gave it.
You can read more about our heat-free and chemical-free method here.
Who should consider adding ratfish liver oil to their supplement routine?
Rosita® Ratfish Liver Oil appeals to a wide variety of health interests:
- Real foodies searching for a rare and unique nutrient profile.
- Those looking for a completely natural supplement that’s high in alkylglycerols.*
- Children with taste sensitivities to fish (i.e., children on the spectrum or fussy eaters).*
- Anyone striving to improve and support their overall health, including the brain, and immune and circulatory systems.*
- People who want 100% raw fish liver oil with no additives.
Latest ratfish liver oil testing results
Our Ratfish Liver Oil is third-party tested in a microbiological laboratory and certified to meet strict European regulations for potency and purity.
View our Rosita® Ratfish Liver Oil testing page for the latest results.
For more information, you can also see our related FAQs on testing.
