any deviation signals chemical breakdown or bacterial contamination that makes the injection unsafe
doi: 10.1212/WNL.0000000000000151 [PubMed] 28833346 Gagnon DJ, Fontaine GV, Riker RR, Fraser GL
The cheeks may appear pink, red, flushed, and studded with very small (pinpoint) bumps
Cosmetic composition, comprising in a cosmetically acceptable medium at least one polymeric, ionic compound comprising imidazolium groups (imidazolium compound A), obtainable by reacting a) at least one a-dicarbonyl compound, b) at least one aldehyde, c) at least one amino compound having at least two primary amino groups, d) optionally an amino compound having only one primary amino group and e) at least one protic acid, and optionally subjecting the reaction product to an anion exchange, where the main chain of the at least one compound comprising imidazolium groups does not contain benzene rings, and where in the components a) and b) the aldehyde carbonyl groups may also be present as hemiacetal or acetal and the ketone carbonyl groups may also be present as hemiketal or ketal, and optionally at least one antidandruff agent different from the imidazolium compound
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