Same can be said about most any product on the market, no matter price.
I have sensitive skin including scalp when using a new item always test first.
IT Cosmetics: A343853 Pleased sharing no issues whatsoever, really is lovely on my aging face, weightless non drying, and soft focus finish.
I applaud anyone who takes the time helping people make informed decisions.
What works for one might be problematic for individuals with sensitive skin.
Recently revisited a line (not cosmetics) ecstatic by results achieved, tested no problems with sensitivity, then little over a month of using, had to stop! Because severe allergic reactions. Sometimes reactions don't instantly appear.
Each individual is different, should along with prudence discuss new products with their Dermatologist or Physician, making an informed choice.