Yes, in some cases it is advantageous to do a package that combines the inkless serum treatments with camouflage that utilizes skin-colored inks
Campbell, C., Weinger, M
Reyes-Diaz A, Mata-Haro V, Hernandez J, Gonzalez-Cordova AF, Hernandez-Mendoza A, Reyes-Diaz R, Torres-Llanez MJ, Beltran-Barrientos LM, Vallejo-Cordoba B (2018) Milk fermented by specific Lactobacillus strains regulates the serum levels of IL-6, TNF-alpha and IL-10 cytokines in a LPS-stimulated murine model
When I was recruited to my first academic job as an Assistant Professor at The University of Maryland, I asked my Chairman Joseph McLaughlin when I would be promoted to Associate Professor (the next step up)
Recombinant HGF was treated only with LASSS (at the same 1:8000 molar ratio to HGF as described earlier, without exposure to peroxynitrire) and then applied to centrifugal ultra-filtration (10-kDa MWCO) to thoroughly wash out un-reacted, free LASSS (FW: 238.39) prior to the c-met binding assay