What do you do when nothing seems to get LP clean?

Again I agree with the posters regarding Paul Frumpkin's two stage cleaning process. It's really wonderful stuff. Especially if you consider an album a lost cause. What do you have to lose? Post your desire for a sample and one of us will be happy to oblige. Also, FWIW, it's an incredible bargain when you compare the per ounce cost to other commercially available cleaners.

Geez, how is an enzyme supposed to live if it is washed off and vacuumed away AND the environment to support such life is removed?

I've mentioned before that certain concerns may be valid. I just don't know the answers and I doubt the manufacturers could answer them to anyone's complete satisfaction without disclosing the recipe. Also, anonymous attacks are childish.

Buggtussels Vinyl Zyme has been available for a number of years. Does anyone know of negative comments about this particular product? I'm curious. I've Googled this to the point where I don't think there is a negative review. So, since there aren't that many different types of natural enzymes I would think that we should look for criticism of Vinyl Zyme.

I realize I'm looking at this whole issue more simply than David or Doug but my viewpoint is based on what my records have been exposed to through my 35 years of collecting and caring for records. I'm not a newbie to vinyl and didn't abandon my records in the 80's like so many did. I started cleaning my records in the 60's with a tap water damped round felt unit made by Watts. By 1970 I had discovered inner and outer aftermarket record sleeves. I adopted Diskwasher cleaning in the 70's and had my entire collection cleaned in the late 70's by a Kieth Monks. At that time Kieth Monks simply supplied a recipe for a cleaning fluid which was about 50% alcohol and 50% distilled water. I eventually purchased my Nitty Gritty RCM and used their products but was not pleased with the results. I went back to the Kieth Monks recipe in various mixes until I bought RRL products recently and now the AIVS solutions. I wouldn't doubt that some of my records have been subjected to every fluid i've mentioned here. Since I've seen or heard no degradation of any of my vinyl library I'm just not concerned. Of all the produts I've used I will say that Diskwasher fluids were the worst with the Nitty Gritty cleaners coming in a close second.

My experience constitutes empirical data over a long enough time for me to have reached my comfort level with the AIVS stuff. I'd like to know your thoughts on my experiences. Also, again, what do you have to lose with an otherwise unplayable record.

I'm not a scientist but I didn't sleep through all my studies at university. Animal fats are used in making steel to provide certain characteristics for workability, strength, etc. What it is not is steel with fat added. It becomes a very complex molecular structure. Even if you weld the steel it will not leech out the animal fat. I'm sure that a complex compound of molecules found in vinyl formulations is similar in concept. If it were as simple as vinyl with fats added then certainly the pressure of the stylus would make the fats leech through temperature rise with a couple of tons per square inch pressure. I don't know how big enzymes are but I'm pretty sure they are bigger than individual molecules. We all know that salt is not good for concrete. But one doesn't claim that putting salt on it makes the portland cement leech out and that's why it crumbles. It is no longer sand, water, lime and portland cement. It is concrete after the ingredients have had their chemical reaction. This is not offered to make a fuss with you guys. It's just food for thought.