Excuse me for butting into your conversation ladies ......
May I ask how you would clean off/reduce/remove that 'shiny spray' ?
It depends upon what type it is and on which leather. for instance some are acrylic based like using mop and glow on your floor it lasts for a while and then it wears off and some are wax based like spray shoe polish.. often times and good cleanser can break it down...
some shine sprays are made by Melitonian and Feibings and Master leather for instance.. also there are no buff instant shine polishes ... And I don't know what they are made of ..
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Im only guessing because I can not see what the poster is asking about...
All the best,doc