Best leather conditioner for light cracking

[MaX PL]

I've got very, very light cracking on one drivers side lumbar I'd like to start conditioning before it gets worse.

Not sure what happened but my leather has been perfect for 4 years and now I spot this area with light cracking out of nowhere.

I've been using Nextzett leatherpledge for years now and tried it on this with no luck. I also have both leatherique products to use and tried the rujuvenator overnight on a cold day in the garage, so not the most effective method and it did not work.

Any other ideas or products to try?