The Science of Testing Beauty Products

Before a cosmetic product reaches the shelf, it goes through rigorous evaluation to ensure it performs well, stays stable, and delivers a strong user experience. This lecture explores how prototype design evaluation combines sensory testing, scientific measurement, and benchmark analysis to refine cosmetic formulas. This video is a lecture from the *Olay Introduction to Cosmetic Science and Ingredients Specialization*. As part of a free course preview, it offers insight into how cosmetic R&D turns concepts into shelf-ready products—and what becomes possible when exploring the full program. Learn how testing, stability, and sensory analysis help shape cosmetic products that are safe, effective, and ready for real-world use. Explore the full specialization: https://bit.ly/4mFHw74 00:09 From concept to shelf-ready product 00:26 What is prototype design evaluation? 00:42 Rheology and viscosity testing 01:23 Rheometers and product stability 01:39 Thixotropy in cream-based products 02:01 Texture evaluation and sensory analysis 02:29 Microscopy and formula structure 02:47 Evaluating emulsions, gels, powders, and suspensions 03:36 Benchmarking against competitors 03:49 Aesthetics, claims, and product concept 04:13 Stress testing: Microwave and centrifuge tests 05:01 Why prototype evaluation matters in cosmetic R&D #CosmeticScience #BeautyScience #ProductDevelopment #SkincareScience #Cosmetics #LearnOnCoursera #Olay #BeautyEducation #RAndD #Innovation