Rosita Extra Virgin Ratfish Liver Oil

10 ml. and 50 ml.


In stock

Rosita Ratfish Liver Oil

The Vikings' secret "gold of the ocean"

Rosita's wild-caught, handcrafted Ratfish Liver Oil is an ancient whole food derived from the liver of Chimaera monstrosa, also known as the ratfish. The Norwegian vikings and Scandinavian fishermen regarded ratfish liver oil as a precious gift from the sea, ranking it above all other fish liver oils.* Its rarity and exceptional properties were a major reason they called it the "Gold of the ocean."



Ratfish liver oil.

Shipping Info

Rosita Ratfish Liver Oil™ liquid comes in both 10 ml and 50 ml bottles, and is shipped without cold packs or dry ice. It is perfectly fine if your bottle arrives warm or hot because each bottle is nitrogen flushed and capped - without oxygen. Without oxygen in the bottle, it is impossible for the oil to oxidize and lose its freshness.


Storage: Store Rosita Ratfish Liver Oil in the refrigerator or freezer.

Shelf life for unopened bottles: 1 year from production date if stored in the refrigerator, 2 years if stored in the freezer.

Shelf life for opened bottles: Once opened, store Rosita RFLO liquid in the refrigerator and consume within 6 months. Replace cap after every use and return to the refrigerator to extend freshness.

Dosage: Adults: Take 4 to 8 drops daily or as needed, with food.

Children and sensitive individuals: Take 2 to 5 drops daily or as needed, with food.

Infants {3 months +}: Take 1 to 2 drops as needed in the mouth or mixed with breastmilk.

Breastfeeding moms: May consume the oil directly (2 to 5 drops daily with food) and allow the rich nutrients to pass through the milk to baby.

Consult with your physician before using doses substantially higher than recommended, or taking this product if you are pregnant or lactating, diabetic, allergic to fish or iodine, using blood thinners, anticipate surgery, have a diagnosed cardiovascular condition, bleeding or immune system disorder. Keep out of reach of children.

If you or your child has never consumed fish or fish oil, or if you suspect a food allergy, consult your doctor prior to using a fish body oil/fish liver oil product. As an additional insurance, you could also rub a small amount of Rosita Ratfish Liver Oil™ into a small area on the skin, such as the lower leg.


Frequently asked questions

Ratfish liver oil is derived from the liver of a little known group of shark relatives known as the Chimaeras (Chimaera monstrosa Linnaeus; Common name: Ratfish, Rabbitfish or Ghost shark). Chimaera takes its name from the Greek chimaera, a mythical monster with the head of a lion, body of a goat, and the tail of a dragon. It is the offspring of Echinda and Typhon.

The Chimaeras are a very primitive group of fish, with skeletons composed of cartilage instead of bone, dating back for more than 300 million years. They are true survivors from before the dinosaurs, and have changed very little since. They may actually be the oldest and most enigmatic groups of fishes alive today. Truly an ancient living fossil!

The ratfish is an extraordinary fish found in all the world's oceans, close to the bottom, at depths of 300–500 meters, with a reported maximum depth of 1,663 meters. These fish are almost half shark and half ray, with smooth skin, big sparkling green eyes designed to see in the dark depths, a rabbit-like face, and a small mouth surrounded by large lips. The nose of the ratfish is studded with electric sensors able to detect the faint electrical signals given off whenever bottom dwelling prey – including crabs, snails, starfish, marine worms, urchins, clams, shrimp, and small fish – use their muscles, and sensitive enough to detect their heartbeats. Their bodies taper to an exceptionally long threadlike tail, and together with their rodent-like teeth designed for crushing the shells of their prey, has earned them the common name "ratfish."

There is very limited fishing for this species of fish, which are not a popular food source, although they are edible and their white meat is tasteful. However, following the removal of the liver, head, and all the innards, there is actually less than 10% left for use as a food source. A major reason for this is the size of the liver, which makes up a large proportion of the total mass of the fish.

The liver of the ratfish is very large, constituting approximately 60% of its total body weight, and contains an exceedingly high proportion of oil. The oil content is around 60%, but can in some instances be as high as 80% of the wet liver weight. The large oily liver plays an important role in the maintenance of neutral buoyancy.

Ratfish liver oil is one of the finest antioxidant lubricants known, having been used for guns and fine delicate instruments. Some of the old time fishermen used to save ratfish and use the liver oil as a lubricant and rust preventer. It is extremely stable compared to most fish oils and fish liver oils, and has characteristics in common with Sperm whale oil, which was used as a lubricant for the finest pocket watches. NASA even considered ratfish liver oil as a good substitute for Sperm whale oil, which was used as a lubricant in their space program.

The oils from the ratfish were also used topically, and consumed orally, by the Norwegian Vikings and Scandinavian fishermen for centuries, who regarded this oil as a rare and very special gift from the ocean, ranking it above all other fish liver oils.

Rosita Ratfish Liver Oil™ contains safe levels of the active form of vitamin A (also called retinol or preformed vitamin A). Rosita Ratfish Liver Oil™ also contains natural vitamin D3 (cholecalciferol), rather than vitamin D(ergocalciferol or pre-vitamin D).

The body also manufactures vitamin Dfrom cholesterol, through a process triggered by the action of sunlight on the skin. Very few foods naturally contain vitamin D3. Good sources include fish liver oil and fatty fish such as salmon. Other fish species including other species of cod do not contain measurable amounts of natural vitamin D3.

Vitamin D3 health benefits

Exciting research has shown that many of the body's organs and tissues have 'vitamin D receptors.' These are sites within our bodies where vitamin D is able to attach itself, and exert its positive health effects. It is little wonder therefore that research has recognized the benefit of this vitamin in promoting health effects on our hearts, immune systems and brains. A growing body of evidence indicates that vitamin D may help to:

  • Improve muscle strength.
  • Improve bone health and reduce the risk of fractures and osteoporosis.
  • Support normal blood pressure levels and prevent artery damage.
  • Reduce the risk of heart attack, heart failure, sudden cardiac death, stroke, overall cardiovascular disease, and cardiovascular death.
  • Reduce the risk of colon and other cancers.
  • Support the immune system, and as a result, reduce the risk of autoimmune diseases including type 1 diabetes, multiple sclerosis, and others; and boost the body's defenses to fight infectious diseases, such as tuberculosis and seasonal flu.

Low ratio of vitamin A to vitamin D

Rosita Ratfish Liver Oil™ has a naturally low ratio of vitamin A to vitamin D. This low ratio is truly unique among fish liver oils.

Research suggests that a low ratio may allow vitamin D to exert its full protective physiological effects within the body.

Vitamin E

Rosita Ratfish Liver Oil™ contains alpha-tocopherol, the biologically and chemically most active form of vitamin E, and by far the most abundant lipid-soluble antioxidant in humans.

The primary function of alpha-tocopherol in humans appears to be that of an antioxidant, neutralizing free radicals. Free radicals are nasty chemicals capable of damaging cells and genetic material. Free radicals are generated primarily when the body turns food into energy, and also by sunlight's action on the skin and eyes. Others are in the food you eat and the air you breathe.

Alpha-tocopherol is an important and potent cell membrane antioxidant. Long-chain polyunsaturated fatty acids are an integral part of all cell membranes, and vital for normal cell function. Free radicals are capable of reacting with these fatty acids and causing lipid peroxidation, membrane injury, and cell death. Alpha-tocopherol helps to prevent lipid peroxidation by neutralizing free radicals, preventing the propagation of free radical damage in membranes. It therefore helps to maintain the integrity of cell membranes. It also helps to protect the fats in circulating low-density lipoprotein (LDL, sometimes called bad cholesterol) molecules from oxidation. Oxidized LDL is more likely to get trapped in an artery wall and is now regarded as a prime inducer of cardiovascular disease.

Additionally, alpha-tocopherol has been shown to help maintain immune cell function, enhance aspects of the immune response that appear to decline in old age, enhance vasodilatation (relaxation of blood vessels so blood flows easily), and help prevent the formation of blood clots that could lead to a heart attack or stroke.

Yes, ratfish are bottom feeders residing at depths of up to 2,000 meters.  Crude ratfish liver oil (directly from the liver) does test above the EU limits for contaminants, and it is not advisable to consume it, even for those in Norway who are able to obtain fresh ratfish livers.

Rosita uses a proprietary process that attracts contaminants like a magnet using materials from the ocean.  Unlike most fish liver oil producers, who use molecular distillation (high heat) to remove/reduce contaminants, a process that destroys precious vitamins A and D, the Rosita process does not damage the vitamins but keeps them intact just as they are in the ratfish's liver.  Once the ratfish oil has passed through the contaminant filter, it tests below the strict EU guidelines.  It is important to keep in mind that no fish you eat (nor, for that matter, any beef, chicken, or pork) is completely free of dioxins and contaminants unless it is highly processed, which destroys the nutrients.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

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Bruce G.
United States

Hate the taste, but I

Hate the taste, but I will continue to use it. My order was shipped promptly.


Hi Bruce, Thanks so much for sharing your experience. We're sorry to hear you don't like the taste of your Rosita Ratfish Liver Oil. Many of our customers find the Ratfish Liver Oil taste to be much milder than the Rosita Cod Liver Oil. Still, if you are sensitive to the taste of fish, we understand :) You could try and chase your dose with an orange slice or a little bite of fruit. Many of our customers get used to the mild fish taste after taking it for a while, too :) We look forward to serving you, Bruce - and are here if you have any questions along the way. We're also glad to hear that you are satisfied with your shipping experience. Warmly, The Corganic Team

Alejandro Baez

Wow, my vision just became HD in just a few days !

Wow, my vision just became HD in just a few days !


Hi Alejandro, Thank you for sharing your amazing experience with Rosita Extra Virgin Ratfish Liver Oil! Indeed, its nutrient profile (especially with naturally occurring vitamin A) is supportive of the eyes...people also take Ratfish Liver Oil to support the pineal gland in the brain (also called the "third eye"), which produces melatonin, regulates sleep, and is thought to be the center for intuition. We've heard of some really cool benefits from our customers, and are so glad to hear another from you :) We wish you the very best - and we look forward to serving you. Warmly, The Corganic Team


One of a kind

There is good reason high quality cost more. Nothing else is close to the value for results produced. Taste is mild, fishy nothing special for this type product. Within 24-48 hours had vivid, lucid dreaming, seemingly all night. Sleep quality improved quarter to third. Deeper more restful restoring. All has continued. Hard to quantify, but better mind clarity. Gradual, continuously improving. I found other reviews most helpful. Unique product and results.


Hi Kevin, Thank you so much for taking the time to share you experience and your kind words. We appreciate that you understand the value of Rosita Ratfish Liver Oil, and what a truly special, thoughtfully produced quality product it is :) Indeed, the taste is mild and it dissipates quickly. How wonderful that your dreams are more lucid, your sleep quality is improving, you're feeling more restored and that your clarity is feeling honed. So many benefits! It's really cool that the other reviews helped you with your decision, too. We are all about providing helpful information. We look forward to serving you, Kevin - and we truly appreciate your support. Wishing you the very best in the new year. Kindest regards, The Corganic Team

Fabiola Donadao

Amazing product

The entire family is taking it. Simply amazing product. Tastes fish but it doesn't last longer.


Hi Fabiola, Thanks so much for taking the time to share your kind thoughts. We're thrilled to hear that you and your family are enjoying your Rosita Extra Virgin Ratfish Liver Oil and that you appreciate the quality and benefits :) The fresh fish taste is definitely mild and dissipates quickly, as you mentioned. We thank you for your support, Fabiola, and look forward to serving you! Warm regards, The Corganic Team

Jeffery C.
United States


There is nothing special about ratfish oil for the exorbitant price a customer must pay. I’m in tune with my body and I judge all supplements by their ability to help me see or feel or even sense a difference. I’m sorry, but spending $70 for two bottles (almost two months supply) for what is claimed to contain the most potent antioxidant on the planet, I think I would have noticed something by now. I get as much antioxidant from eating organic dark chocolate as I do with ratfish oil. My purpose for buying the stuff was to decalcify the pineal gland and to relieve stress on my liver. However, I can find cheaper ways to do both and feel the difference.


Hi Jeffrey, Thank you for sharing your feedback with us. We're sorry to hear that you're unhappy with the cost. We would like to take some time to explain to you where we are coming from. Here’s just a little background: Rosita Ratfish Liver Oil is the only fresh, wild caught and raw Ratfish Liver Oil in the entire world. And in order to produce such a precious oil, it truly takes a Herculean effort to ensure quality and integrity. The ratfish is sustainably caught in the icy, clean Norwegian fjords. The Rosita family then handcrafts the oil using a rare process that’s completely void of heat and use of mechanics, and so your oil retains all of its invaluable, naturally occurring nutrients. Additionally, since this Ratfish Liver Oil is a fresh and raw product with a limited shelf life, Rosita only produces small batches. All of this means it's more expensive. Please keep in mind, other commercial fish liver oil producers can leave their oil in massive vats for up to a year - and can mask quality issues with industrial processing methods. Also, some good news… Because the Rosita Ratfish Liver Oil is fresh and raw with only rich, naturally occurring vitamins and omega fatty acids, you don't need much. You can still garner benefits with only a couple of drops per serving. And indeed, the oil is said to support the pineal gland in the brain, which produces melatonin, regulates sleep, and is thought to be the center for intuition. As calcification of the pineal gland can occur over time from ingesting fast food, fluoride and other toxins, many believe ratfish liver oil may help decalcify the gland. And many of our customers report better sleep, a feeling of tranquility and a renewed sense of clarity when taking Ratfish Liver Oil. We’re really sorry again that you feel unsatisfied, and we thank you for giving Rosita a try. Wishing you well, The Corganic Team