About Sarah
Sarah Chen holds a B.S. in Chemistry from UC Berkeley and a specialized certification in Cosmetic Science from the Society of Cosmetic Chemists (SCC). She spent 5 years formulating skincare and grooming products for two major beauty conglomerates before transitioning to independent product analysis.
Her unique advantage as a reviewer is the ability to read and interpret ingredient lists (INCI declarations) that most consumers ignore. Sarah can identify potential irritants, ineffective filler ingredients, and genuinely active compounds — cutting through marketing jargon to tell you what a product actually does at the molecular level.
She reviews skincare, grooming creams, serums, and any product where ingredient quality directly impacts performance. Her analysis combines clinical ingredient knowledge with practical user experience testing.
Areas of Expertise:
- Cosmetic chemistry and ingredient analysis (INCI interpretation)
- Skincare formulation evaluation
- Men’s grooming creams, balms, and serums
- Fragrance chemistry
- Regulatory compliance (FDA, EU cosmetics regulations)
Testing Methodology: Sarah evaluates products on two levels. First, a clinical ingredient analysis — checking concentrations, pH levels, and potential interactions. Second, a 21-day practical use test measuring hydration levels (using a corneometer), skin pH changes, and visible results documented with standardized photography.
Articles by Sarah Chen
Browse all product reviews written by Sarah on GentlemanPro. Each review follows our rigorous testing methodology and includes data from hundreds of verified buyer reviews.