Effectiveness 카테고리 전체FunctionalBasic CareMakeupBody Care열린 분류 Hair & ScalpOthers Evaluation of hair friction (surface roughness) 본문 This study aims to evaluate the effect of a test product on improving friction (surface roughness) in hair. · Test period Single session, 2 weeks or more · Number of subjects Inmortress · Claim Helps improve hair friction (surface roughness) Previous PostHair breakage assessment 26.07.02 Next PostHair tensile strength evaluation 26.07.02