Pictures show the yellowing stains moving but going nowhere.
The moving stains need to be transfer to an absorbent paper towel supply with the kit.
It is done with Hydrator-3.3 plumping the leather fully saturated and lay a wet out paper towel over it without airspace.
This cling tight paper towel when place securely with cling wrapper helps to transfer the yellowish stain onto the paper instead.
The leather can be kept saturated for up to 24 hours, enough time for the stains to be move to the surface by the Hydrator-3.3.
Remove the cling wrapper and replace with towel to keep the paper towel intact so that the moisture can wick through it.
Please show picture if you are doing it correctly.
Note: the yellowish stain is probably from accumulated sweaty hands.
Roger Koh
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