The Parallel Case Study.

We're looking for real-world proof of P.C. Serum’s efficacy. If you have documented your 4-week journey and your results are selected for our clinical features, your next 1.7 oz bottle is on the house ($165 value).

The Photo Guide

To be selected, your photos must be usable for professional case studies. Please ensure your photos meet these three criteria:

  • Natural Lighting: Face a window during daylight. No yellow bathroom lights or harsh flashes.
  • Zero Makeup/Filters: We need to see the raw texture and tone of your skin.
  • Consistent Angles: Provide one front-facing and one side-profile shot for both "Before" and "After."

Fill out the form below to get started.