What was your issue if you don't mind me asking? It's really hard to verify efficacy otherwise.

Allergy/sensitivity to specific ingredients in some products I used. The products were specifically marked as "dermatologically tested" and intended for sensitive skin. My doctor was surprised, since he uses the same cream, recommends it to patients, and never saw any issues. Yet Gemini took one look at the ingredients list and pointed out the potential offender that can cause rashes right away.