Pectasol and algenates are not chelating agents. If they help with symptoms? Then you may find them of aid. But if you really want to start getting the toxic metal/s out of you? I would recommend oral DMSA taken according to the Andy Cutler protocol as a starter.
I'm not sure if so many people are using DMSA on this site, but because it works? I think this is why word gets around and more people wind up trying it out for themselves. As long as it's used correctly, it can be of great help to a person as a starter to begin reducing blood mercury levels.
I recommend you read this link through and familiarise yourself with Andy Cutler, his protocol and the chelating agents themselves and what they do and why it's recommended they be used according to what Cutler has prescribed.
Andy Cutler index posts DMSA reduces the blood levels of mercury and then later, you can move onto ALA (alpha lipoic acid)which reduces organ/brain mercury. You can take ALA by itself, or if it helps more, you can take it WITH DMSA. But only AFTER blood levels have been reduced first, which takes about 3 months following amalgam removal or other mercury exposure.
ALA is a more powerful chelator than DMSA and can penetrate the blood brain barrier and remove brain mercury. It also removes organ mercury. But again, it must be used no earlier than 3 months or so post amalgam removal. Again, it should be used according to Cutler's protocol for safety and effectiveness.
There are plenty of products and protocols out there, but I personally feel this is one of the most tried/tested/safe protocol I have come across that uses strong chelating agents that have a tight grip on the mercury enough to be used to remove the mercury.
It is of course up to you which way you wish to do things in the end. But this is just a recommendation based on personal experience and seeing results/testimonies of others.
For an example of some testimonies? Check out this link:
http://orbisvitae.com/ubbthreads/ubbthreads.php?ubb=showflat&Number=251054&site_id=1
