Rosita Handcrafted Ratfish Liver Oil™

One of Nature's Rare Wonders

Ratfish liver oil is NOT Skate liver oil

Our team members here at Rosita Ratfishoil® are astonished to see the amount of dis-information about ratfish liver oil, and other liver oils for that matter, put out there on the Internet. It is amazing to see how far some companies are willing go to sell their products by deceiving people who simply want to improve their health. Some of these sellers purchase their livers on the open market or from brokers - and then persuade others that they are selling the “gold standard!” They try to achieve sales by generating lies and dis-information about their products and other products on the market. A perfect example of this is the confusion surrounding ratfish liver oil and skate liver oil. Their customers have been told, or more appropriately convinced into believing that skate liver oil/skate fish liver oil is the same as Rosita Ratfish Liver Oil ™.

Read more: Ratfish liver oil is NOT Skate liver oil

Ratfish Oil - Dr. Pete Peterson - June 2009

chimaera monstrosa linnaeus 1758-3Ratfish liver oil is obtained from the liver of the fish shown in the picture on the right. The Latin name is Chimaera monstrosa Linnaeus, an extraordinary fish found in all the world's oceans, close to the bottom, at great depths, with a reported maximum depth of 1,663 meters. The ratfish is therefore a bottom-feeder. There is very limited fishing for this species of fish, which are not a popular food source. 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.

Ratfish liver oil is one of the finest antioxidant lubricants, having been used for guns and fine delicate instruments. The old time Scandinavian fishermen would use ratfish liver oil as a lubricant and rust preventer. It has the advantage of being very 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 programme.

Read more: Ratfish Oil - Dr. Pete Peterson - June 2009