You have to be careful with Last. It will definitely cause some types of vinyl to deteriorate sooner. On other types of vinyl, you will increase longevity and prevent deterioration. I ruined several Reference Recordings using it --- much noisier when done. In my opinion, the use of the preservative is not that valuable, and I quit using many years ago. Keep your vinyl clean with a vacuum record cleaner and appropriate solutions. I hope this helps.
