I found out about a leather potector called Apple Guard (forgive my spelling, but the bottle is packed up for our move). I heard about it from a woman who bought a Vuitton wallet from me. We were talking about how much we love the natural vachetta, but how it's so easy to mar, even conidering the patina it gains. She heard about Apple Guard from a very established Ebay seller of Vuitton, etc. She said she had been treating her vachetta with it ever since, and it was great! I tried it, and I have used it ever since to protect the vachetta on my few Vuitton collector's pieces. They have have not darkened nearly as much as they would have without the treatment! I have not dared to treat any of my Hermes. (I have a naural vache Farmer's Market basket that I have not worn yet, because I'm afraid of ruining it...) So, my long winded question is....has anyone heard of a treatment that's "approved " by Hermes? Does anyone treat their bags to anything other than the spa? Thanks all!!