Fish Oil Brands

Also, I'm lost at what happened with Holland and Barrett oils. They are not safe to take a few years ago because of PCBs, but are they safe again now?

I think EyeQ is supposedly a good brand pure, and is used on young children on the children of our time.

Another solution is to get your Omega 3 seed oil instead

No fish oil is pure if it has undergone molecular distillation. You'll search in vain to find this on any H & B fish oils. As you know, Govt advice is not to eat fish more than twice or thrice a week. This should apply to fish oils that have not been molecularly distilled / purified.
If you want to take Omega 3, try flaxseed oil from a reputable supplier.

I have no idea about the brands of fish oil.
We know hilsha mackerel or fish oil containing omega-3 fatty acids., They help to reduce the density of blood (which have suffered from triglycerides, high cholesterol, etc.).

Telephone Box

Yes, they are, and H & B are a reputable company, they are a good source of supply. They also tend to be much less expensive than many of their competitors, especially if you buy the larger size.

Blackmores