Just FYI, it is not uncommon for some color lines to have very low levels of silicones or even sulfates in their pigments and/or developers as part of their chemical process. I wouldn't worry too much about it if it is a one-time thing, only if the recommended aftercare products have you repeatedly putting these ingredients into your hair.
Hair Stylist and Curly Hair Specialist - St. Petersburg, FL (Tampa Bay)
Blog: Live Curly, Live Free
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Sulfate- and non-water soluble silicone-free since 04/22/2002
3B, brunette: medium texture, low porosity, high density