SENSORY TESTING

  • Affective – consumer evaluation to measure acceptance and preference
  • Difference tests
  • Acceptance/preference tests
  • Descriptive tests

DESCRIPTIVE TESTS

  • Determine perceivable difference between products
  • Changing ingredients or source of ingredient
  • Triangle test-three samples, two alike, determine the odd sample
  • Duo-trio test- match the reference product

ACCEPTANCE/ PREFERENCE

  • Paired Preference-choose preferred item
  • Rating
  • Absolute Judgment
  • Hedonic – measures how much liked or disliked
  • Purchase/Usage action

DESCRIPTIVE TESTS

  • Trained panelist
  • difference between product
  • Highly specialized tests

GROUP DISCUSSION

  • Objective and focused discussion
  • Moderation by an experienced person or team. Based on the objective of the study the moderation can be done by a technical expert in the field.
  • Understanding and awareness of skin attributes can be done by a dermatologist and/or salonist/beautician based on the requirement.