A Comprehensive Guide to Efficacy Studies, Instrumental Tests, and Sensory Analyses in Hair Cosmetics

To meet these demands, companies must substantiate their product claims through rigorous testing

This guide explores the various methods used to evaluate the efficacy of hair cosmetics, including instrumental tests, clinical efficacy studies, and sensory analyses, and how these results can be leveraged to communicate effectively with consumers.

Instrumental Tests

To support the primary claims of hair products on the market, instrumental tests provide essential, objective data on hair swatch properties like color, strength, and shine. Here are some key instrumental tests performed by ALS:

• Hair Fiber Integrity Analysis
  • Softness, Smoothness, and Moisturization
  • Combability and Detangling
  • Sealing and Prevention of Split Ends
  • Restoration, Strength, and Elasticity
  • Breakage Resistance After Repeated Combing
  • Sun Protection Evaluation
• Hair Fiber Image Analysis
  • Surface Damage Assessment
  • Scanning Electron Microscopy
  • Frizz and Volume
  • Curl Definition and Retention
  • Straightening Efficacy and Retention
  • Hair Luster and Cleansing
• Thermal Analysis
  • Hair Hydration/Water Content (Differential Scanning Calorimetry - DSC)
  • Thermal Protection
• Color Analysis
  • Color Safety After Multiple Washes
  • Color Protection Against UV Radiation
  • Yellow Removal and Prevention in White/Gray Hair
  • Dyeing Efficacy on White Hair
  • Evaluation of Lightening Products Efficacy

Watch the webinar and learn the key points of using an instrumental method in hair swatches, how the results are obtained and compared, and how consumers understand and interpret this data.

Clinical Efficacy

Clinical efficacy testing provides valuable insights into scalp conditions that impact hair health and overall well-being. These tests often involve self-assessment questionnaires completed by study subjects and instrumental measurements on the scalp. Key areas of focus include:

• Skin Hydration and Integrity of the Skin Barrier
• Influence of the Product on Scalp pH and Oiliness Reduction
• Hair Growth and Improvement
  • New Hair Growth
  • Number of Hair Strands
  • Percentage of Anagen vs. Telogen Hair Strands
  • Hair Volume/Density and Strand Thickness
• Improvement in Hair Strand Strength and Thickness
• Fall Reduction Efficacy Analysis
• Dandruff Efficacy Analysis
  • Erythema and Dandruff Counting by Trained Technicians
  • Improvement of Scalp Flaking Through Images

For manufacturers of hair care products, maintaining healthy hair and scalp is vital for enhancing overall appearance and well-being. Learn more about how our Efficacy Testing solutions can support your product development.

Sensory Trained Panels and Consumer Studies

To ensure a comprehensive understanding of product performance, sensory analyses by expert hairdressers and trained technicians assessors specialized in hair care products evaluate the sensory profile and performance of products like shampoos, conditioners, leave-in products creams, and treatment masks. Key methodologies conducted at ALS include:

• Quantitative Descriptive Evaluation
• Paired Comparison Through Side Choice
• Assessment Made by Participants/Consumers
• Ethnographic and Qualitative Diaries
• Neuroscience Applied in the Use of Products
• Half-Head Methodology Evaluations

Facilities for sensory analyses include beauty salons with washbasins, hair shine assessment rooms with sunlight simulators, and controlled environments for water flow, hardness and temperature.

ALS offers Sensory Trained Panels and Consumer Studies in various controlled environments. Our extensive range of perception-based services helps clients gather valuable insights on satisfaction, product descriptions, and comparisons.

How Can Companies Effectively Communicate These Test Results?

Communicating test results effectively not only builds consumer trust but also reinforces a product’s credibility in the marketplace. By adopting a strategic approach that emphasizes clarity, transparency, and engagement, companies can turn technical data into compelling narratives that highlight product efficacy and benefits:

1. Simplify Technical Data: Translate complex scientific results into easy-to-understand language. Use infographics, charts, and visuals to illustrate key findings, such as improvements in hair strength, shine, or color retention.
2. Highlight Key Benefits: Focus on the main benefits that consumers care about, such as frizz control, moisturization, or split-end prevention. Use clear and concise statements to convey these benefits, supported by the test results.
3. Use Real-Life Examples: Share testimonials and Before-and-After Photos from real users who have experienced the benefits of the product. This adds a personal touch and makes the results more relatable.
4. Leverage Digital Platforms: Utilize social media, websites, and email newsletters to share test results. Create engaging content like videos, blog posts, and interactive quizzes that explain the benefits and efficacy of the products.
5. Provide Detailed Reports: For consumers who are interested in the science behind the products, offer detailed reports or whitepapers that explain the testing methodologies and results in depth. Make these available on your website or through customer service.
6. Interactive Demonstrations: Host live demonstrations or webinars where experts can explain the test results and answer consumer questions in real-time. This can help build trust and provide a deeper understanding of the product’s efficacy.

Leveraging Test Results for Consumer Communication

Consumers gain trust and confidence in hair care products when companies substantiate claims through rigorous efficacy studies, instrumental testing, sensory and consumer studies. With this foundation, companies can create clear, compelling marketing messages that showcase the unique benefits and attributes of their products. By effectively communicating these scientifically supported claims, companies strengthen their product's appeal and stand out in a competitive market.

Discover ALS's Advanced Hair Testing Methods

At ALS, our Clinical Efficacy and Hair Metrology Lab meticulously evaluates the effectiveness of cosmetic products, providing precise analysis and sensory evaluations to support a wide range of claims for various hair types. Learn how our state-of-the-art lab can enhance your brand’s success.

Contact us today: beauty.usa@alsglobal.com or call +1 310 214-0043.