Re: Does ink go bad?
Inks are made of a pigment which never expires its is also made with distilled water which only dries up and with alcohol which will only evaporate rather than out date, the ink will dry and harden overtime if not mixed regularily to keep ink easy flowing, once drying up over time and becoming thicker just add a few drops of alcohol 99% bought in any drug store, Hesitate on adding witch hazel or distilled water as you will create a thin ink which won't hold in the skin well. The containers are what have expiration dates as they can break down over time with the liquid in them and possibly causing bacterial growth, hope this helps, if the ink has odor than somewhere in manufacturing it was contaminated.
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