I posted the following in response to a question on informedconsent.co.uk and would welcome your reactions:
Here's my take on vivishine and latex polishes in general.
There are two kinds of product to polish latex:
(1) silicone products that leave a semi-liquid coating on the latex that is incredibly shiny and great for photography, but rubs off easily. VivishineG M Y is one of these, which differs from the others in the way you apply it. You put some vivishine in some water and dip the clothing in it. Most other silicones you spray or wipe on, like Pjur cult spray or many others.
(2) products that give a dry shine, like Black Beauty, Blue latex polish and good old Armor all (this last is readily obtainable from shops like Halfords).
The silicone products make the surface incredibly shiny and great for photography, but the shine rubs off easily. The "dry shine" products give a less intense shine but it is more durable.
My own experience with vivishine is that there can be problems. If you put too much vivishine into the water you can end up with the latex drying with droplet marks that can be difficult or impossible to remove, making me worry about permanent damage. If there is too little vivishine in the water, coverage will be patchy and you may need to start again. If you dip lots of clothing in one session, you can start with clothing over-coated, pass through good results and end up with patchy coverage. The other problem is that the silicone shine can be ruined by contact with other latex, so that every treated garment must be stored out of contact with other clothing and with no part of the latex touching any other part of the garment.
YMMV, but I don't think this product is the magical solution some people make it out to be. If others disagree, I'd love to learn how to use it properly. I am posting this to rubberist.net, the source of all wisdom about latex, and will report back any suggestions from there.