Rosita® Extra Virgin Ratfish Liver Oil

Rated 4.8 out of 5
310 Reviews
  • 10 ml. and 50 ml.

Buy two or more & save 5%

Frequency
  • Pure: Contains 100% naturally occurring nutrients, including alkylglycerols, a full spectrum of omega fatty acids and phytosterols. Nothing added.
  • Precious ratfish: Ratfish (Chimaera monstrosa) is an ancient species. Rosita® is the only company that crafts this type of oil, sourced from the pristine Norwegian fjords.
  • Wild-caught & sustainable: Authentic ratfish are wild-caught on small fishing boats in Norway.
  • Unprocessed & raw: Oil is quickly and naturally released and purified via gentle filtration — without heat, chemicals or mechanics.
  • Benefits: May support the immune system, cells, brain and heart.* Mild, buttery taste.
  • Rosita Ratfish Liver Oil 50ml and 10ml bottles
  • Rosita Ratfish Liver Oil 10ml bottle front
  • Rosita Ratfish Liver Oil 10ml bottle side label
  • Rosita Ratfish Liver Oil 10ml bottle side label
  • Rosita Ratfish Liver Oil 50ml bottle front
  • Rosita Ratfish Liver Oil 50ml bottle side label
  • Rosita Ratfish Liver Oil 50ml bottle side label
  • Rosita Ratfish Liver Oil nutrition facts

Rosita® Ratfish Liver Oil is a precious, nutritional powerhouse, with a full spectrum of omega fatty acids, phytosterols and alkylglycerols.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...

Rosita® Ratfish Liver Oil is a precious, nutritional powerhouse, with a full spectrum of omega fatty acids, phytosterols and alkylglycerols.

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

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.

Wild-caught ratfish liver oil

Rosita® Ratfish Liver Oil contains a vibrant, naturally-occurring nutrient profile that includes:

  • Alkylglycerols: Biologically active lipids with antioxidant properties
  • A full spectrum of omega fatty acids: Including omega-3 EPA and DHA, 4, 6, 7, 9, and 11
  • Phytosterols (plant sterols) and quinones (dietary plant compounds): Campesterol, stigmasterol and ∆5-avenasterol, and a natural class of organic compounds

According to published scientific studies, these nutrients support the body in many ways, such as:

  • Supporting the heart, cells, brain and circulatory system*
  • Supports defenses to free radical damage* 
  • Contributing to a relaxed, positive mindset

Ratfish Liver Oil is also a fat-soluble, real food supplement, meaning your oil is absorbed along with healthy fats in your diet and can be stored in your body's fatty tissue for long-term use.*

Ratfish are distinct from skate fish (rays and sharks, too), with a different nutrient profile. Other fish oils may claim to have alkylglycerols, yet they don't compare to Rosita's nutrient profile and alkylglycerol content.

For more on these nutrients and health benefits, click here.

Best taken with food, as needed.

  • Adults: Take 15 drops daily.
  • Children and sensitive individuals: Take 5 drops daily.
  • Low and slow: Rosita® is premium and pure. Therefore, it’s essential to start slowly, with a lower dosage than recommended. For example, a very small dose every other day, or even once a week, until you can determine how the supplement affects your body and what dosage feels right for you.
  • Store Rosita® Ratfish Liver Oil in the refrigerator or freezer.
  • Shelf life for unopened bottles: 3 years from production date if stored in the fridge, 5 years if stored in the freezer.
  • Shelf life for opened bottles: Once opened, store Rosita® Ratfish Liver Oil in the refrigerator and consume within 3 months. Replace cap after every use and return to the fridge to extend freshness.

Price & Dosage Calculator

Use our dosage calculator to determine how long your product will last based on your household size.

One bottle of Extra Virgin Ratfish Liver Oil will last your household approximately days. The estimated price per day is .

The calculation assumes dosage amounts are being followed as shown on the product's instructions and that product is being taken daily.

One bottle of Extra Virgin Ratfish Liver Oil will last your household approximately days. The estimated price per day is .

Customer Reviews

4.8
Rated 4.8 out of 5 stars
Based on 310 reviews
Total 5 star reviews: 274 Total 4 star reviews: 20 Total 3 star reviews: 7 Total 2 star reviews: 3 Total 1 star reviews: 6
95%would recommend this product
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Rating
Ratings
310 reviews
  • TJ Profile picture for Tommy J.
    Tommy J.
    Verified Buyer
    Extra Virgin Ratfish Liver Oil
    Reviewing
    Extra Virgin Ratfish Liver Oil 50 ml.
    I recommend this product
    Rated 4 out of 5 stars
    12 hours ago
    Honestly thought it was a bigger bottle

    thats why i took one star off.

    my mistake. been wanting it for so long. dont notice much difference yet. too soon.

    doesn't have to bad of a cod liver taste, very subtle.

    for $150 i assumed i was getting a big bottle, shocked when it got here. its my error tho. i rushed. thought it was going to be 2-3x's the size. i get it, probably alot of livers in that bottle. =)

    thank you be safe. i will wait for a coupon or sale next time. <3

    RU Profile picture for Rosita® USA
    Rosita® USA
    15 seconds ago

    Hi Tommy, thank you for your honest review and support of Rosita®. While the bottle may be smaller than expected, you can trust that every drop packs a powerful nutritional punch. As you continue taking our Ratfish Liver Oil, we hope you'll begin to experience the wonderful health benefits our customers rave about. We look forward to your next order and will be sure to notify you of any upcoming sales or promotions.

  • CS
    Cynthi S.
    Verified Buyer
    Extra Virgin Ratfish Liver Oil
    Reviewing
    Extra Virgin Ratfish Liver Oil 50 ml.
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    Good Stuff

    The blood lab tests have improved to normal levels since using the ratfish oil. Aok

    RU Profile picture for Rosita® USA
    Rosita® USA
    1 week ago

    Thank you for this wonderful 5-star review, Cynthi S.! We're thrilled to hear that your blood lab tests have improved and returned to normal levels. Here's to continued vibrant health as you embrace nature's bounty from the sea!

  • CS
    Casey S.
    Verified Buyer
    Extra Virgin Ratfish Liver Oil
    Reviewing
    Extra Virgin Ratfish Liver Oil 10 ml.
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Ratfish Liver Oil

    Haven't been taking this long enough to notice a difference, but it appears high quality and the dropper cap is really convenient.

    RU Profile picture for Rosita® USA
    Rosita® USA
    1 month ago

    Thank you for this wonderful 5-star review, Casey S.! We’re glad to hear that you appreciate the quality of our Extra Virgin Ratfish Liver Oil and find the dropper cap convenient. 😊 It’s designed to make things easier for you! While the benefits may take some time to become apparent, we're confident that this nutrient-rich oil, gently extracted from nature's bounty, will soon have you radiating vitality from the inside out. Here's to your continued wellness journey, nourished by the gifts of the sea!

  • JS
    JAMES S.
    Verified Buyer
    Extra Virgin Ratfish Liver Oil
    Reviewing
    Extra Virgin Ratfish Liver Oil 50 ml.
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Grateful for strong medicine

    This is a very nourishing physical food. I feel lucky Rosita offers this, and I just tonight ordered the Bee Bread from Rosita. I like the high amount of care invested into these products. I'm using the Ratfish liver oil as a natural Vitamin D source.

    RU Profile picture for Rosita® USA
    Rosita® USA
    1 month ago

    Thank you for this wonderful 5-star review, James! We're so happy to hear that you're finding it nourishing and that you appreciate the care that goes into making these products. It's great to know you're using it as a natural Vitamin D source! And congrats on your order of Bee Bread from Rosita®—sounds like you're really embracing high-quality nourishment. We love hearing from customers like you who value the pure and thoughtful approach to wellness. Here's to continued radiant health, nourished by the gifts of nature!

  • K
    Keith
    Verified Buyer
    Extra Virgin Ratfish Liver Oil
    Reviewing
    Extra Virgin Ratfish Liver Oil 50 ml.
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    Brain function

    I've been using the Ratfish Liver Oil for years and it helps my brain function better, truly an amazing product!

    RU Profile picture for Rosita® USA
    Rosita® USA
    2 months ago

    Thank you for this wonderful 5-star review, Keith! Here's to more years of mental clarity and amazing benefits! It's incredible how the unique nutrient profile of this pure, raw oil can nourish the brain in such profound ways. Here's to many more years of sharp thinking, nourished by the gifts of the sea!

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