“I have an amber bottle of LAST preservative from 1979. Is it safe to use? Thank you in advance.” – R.B
Assuming that the bottle has been kept finger tight, the Record Preservative is safe, effective, and will perform its function as if brand new. One of the reasons that LAST Products perform as well as they do, has to do with the purity and stability of the components. Please use, and enjoy the benefits to your collection of recorded music.>
Thank you for your query. Best of the New year to you!