Good quality, safe paste in eco packaging
As my small domestic computer park has around ten CPUs of all ages, the conductive paste that makes contact with the aluminium/copper radiator should be replaced after a few years. The same applies to any second-hand purchase.
That's a lot of volume, and you need to choose a quality paste that doesn't conduct electricity to avoid disappointment, because it's not always easy to get the dosage right.
Fair results, but no more, on my small park. Unfortunately, I even gained one or two degrees on the most critical CPU (thank you HP for the very poor sizing of its heatsinks on the elitedesk mini).
In short, not the best paste in terms of performance, but suitable for most CPUs, GPUs and SOCs with heatsink retention systems.