Shampoo Testing & Hair Product Clinical Trials

Princeton Consumer Research offers the latest clinical hair care product testing facilities to help with claim substantiation for your hair care formulations.

Shampoo Clinical Testing

“Hair Pluck” Technique
Employs specialized forceps to “pluck” hair shafts from the scalp in order to determine the ratio of anagen (active/growth), to catagen (rest) and telogen (passive/falling) phases of the hair growth cycle

Hair Diameter Measurements
Direct hair diameter measurements are made using optical micrometric techniques.

Regimented Combing
This test employs a standardized combing technique designed to capture hair fallout collectively, which is then separated and counted to establish the number of individual broken, intact and bulbous hairs.

Trichological Count
Hair Count Analysis – allows the determination of the hair growth patterns, before and after treatment programs. A quantity of hair uniquely identified in a specific area of the scalp is used to establish product efficacy via video microscopic procedures.

Gravimetric “Pull” Analysis
A highly developed, manual technique for removing and measuring excess fallout aggregates of hair to establish hair loss reduction patterns.

Services

Shampoo Testing
Hair Care Clinical Testing
Hair Care Treatment Studies/Half Head Tests
Thinning Hair
Hair Shaft Diameters
Anagen/Telogen Ratios
Hair Counting Analysis
Gravimetric Hair Pull Analysis Shampoo and Conditioner Efficacy
Dandruff Studies
Color Permanence

Shampoo Testing & Hair Product Clinical Trials

Shampoo Clinical Testing

Services

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