Methodology
How we analyze, categorize, and evaluate skincare formulations.
The Institute for Skincare operates on a strict, evidence-based methodology. We do not evaluate products based on scent, texture, or marketing claims. We evaluate based on chemistry.
Primary Sources
Our data relies exclusively on double-blind, peer-reviewed dermatological studies published in reputable journals, including:
- Journal of the American Academy of Dermatology (JAAD)
- British Journal of Dermatology
- Journal of Investigative Dermatology
The Evaluation Matrix
When analyzing a commercial formulation, we assess three non-negotiable vectors:
- Active Concentration: Does the product contain a clinically relevant percentage of the active ingredient (e.g., 10-20% for L-Ascorbic Acid)?
- pH Environment: For acid-dependent molecules (AHAs, BHAs, LAA), is the formulation's pH close to or below the molecule's pKa to ensure a sufficient free-acid value?
- Packaging Stability: Is the active protected from rapid oxidative degradation (e.g., airless pumps or opaque glass for retinoids and Vitamin C)?