Yes, all leather is treated and some sort of protectant on it. That's the point of tanning the leather. Even "baseball glove" leather in cars (and, well, baseball gloves for that matter) are treated. I do think the l405 "base" leather is especially nice, making comparisons to aniline leather harder. Try out the leather in a disco sport and you'll know the difference immediately.

so if my semi aniline leather is starting to show (very small) marks, can it be treated and brought back to "as new" or is it harder because of it's structure and process? 2016 (L405) Autobiography in Black with Ivory - for ULEZ
2014 (L405) VSE in Black with Ivory
2011 (L322) VSE in Black with Ivory
2005 (3.2 V6) Porsche Cayenne in Black with Savanna
1999 (P38) VSE in Burgundy (?) with Sand

Ivory semi analine on 322’s wears VERY quickly... Can be treated/repaired with dye as usual sir

I've always used Leatherique Rejuvenator oil on my leather (followed by Leatherique prestine clean) and it works a treat!

I too wonder if it will work as well on Semi Aniline leather should the need arise one day 2015 SDV8 Autobiography - Black, Cirrus, 22" Style 707 Wheels