Sorry I don't know about this oil, but I could recommend Green Lip Mussels Tablets and cream. It was found that the Maori people on one coast of New Zealand had no rheumatism or arthritis troubles and where very healthy. Studies of the people found they where eating raw green lip mussels.
The Mussels are now produced in tablet and cream form. I started taking them after having a frozen shoulder twice and after so many other tablets from the Doctor, I found these really worked. My Brother in Law who has arthritis in his hands also found a real difference when he started the Green Lip Mussel tablets.
My view is, they are totally harmless, no dangerous chemicals which really appealed to me. I still take one every day now even though my shoulders are fine.
One point is, you must take them for about 2-3 months before you feel the benefit as they need to get into your system. They do not work for everyone, but they are worth a try.
I asked about them in my local Chemist two years ago, as I always had to get them in Aberdeen. The Chemist started to stock them and now they are a best seller, she told me that word spread and lots of local people now take them (I really think I should have got 10% for the tip).