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Trial Number 0
Trial Purpose:
To evaluate the effectiveness of Case Medical Skin Cleaner against Basis Cleaner Clean Face Wash on the performance of cleanliness, lathering, and dryness under GS 41 Hand Washing test method.
Date Run:
01/13/2022
Experiment Procedure:
Four testers were used to evaluate the supplied products’ performance. A preliminary review of the tester’s hands was conducted before soiling their hands with GS 41 Hand Washing test soil (5 g synthetic soil AATCC Test Method 122, 20 ml tap water). The water and soil were mixed together to create a paste. A quarter size amount of soil was applied to each subject's hand. The hands were then rubbed together with soap for 20 seconds and followed by rinsing hands in tap water for 20 seconds. The hands were then blotted dry with paper towels for 20 seconds. Observations were made after cleaning the contaminated hands for cleanliness, lathering/rinsing, and skin condition. Observations of skin condition were recorded at 1, 5, 20, 60 minutes following the conclusion of the test.
Observations were ranked using the following guidelines:
Cleanliness Observation
Rank Cleanliness
1 No signs of soil
2 Only in fine lines of hand or intermittent spots but not in fine lines
3 Intermittent spots and in fine lines
4 Multiple spots
5 Continually covered
Lathering/Rinsing Observation
Rank Lathering/Rinsing
1 Lots of lathering
2 Some lathering
3 Some lathering
4 Little lathering
5 No lathering
Skin Condition Observation (1, 5, 20, 60 minutes)
Rank Skin Condition
1 Smooth and soft
2 Some dryness
3 Dry (hands turning white)
4 Skin stiffening
5 Very dry (cracking of skin)
Trial Results:
The Skin Cleanser scored a 2.63 for average cleanliness and Basis scored a 2.88; they were comparable. Both cleansers has easy rinsing and scored a 1.75 and 1.5. Hands stayed soft for both cleansers and the Skin Cleanser ranged from a 1.1 to a 2.2, Basis ranged from a 1.4 to 1.9 for skin condition. Both cleaners scored about the same for cleanliness, rinsing, and skin condition.
Cleanliness Ratings
Cleaner
Tester 1
Tester 2
Tester 3
Tester 4
Avg. Cleanliness
Case Medical Skin Cleanser
2
1.5
3
4
2.6
Basis Face Wash
3.5
2
3
3
2.9
Observed Lathering/Rinsing Results:
Lathering Ratings
Cleaner
Tester 1
Tester 2
Tester 3
Tester 4
Avg. Lathering
Case Medical Skin Cleanser
1
2
2
2
1.8
Basis Face Wash
1
1
2
2
1.5
Observed Skin Condition Results:
Skin Condition Ratings
Cleaner
Tester
1 min.
5 min.
20 min.
60 min.
Average
Case Medical Skin Cleanser
1
1.5
1
1
1
1.1
2
1
1.5
1.5
1
1.4
3
1.5
1.5
2
2
2
4
1.5
2
2
1.5
2.2
Basis Face Wash
1
1
1.5
1.5
2
1.4
2
2
2
2
1.5
1.9
3
1
1
1
1
1.4
4
1
1
1.5
1.5
1.8
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
Conclusion:
Case Medical Skin Cleanser was as effective as Basis Face Wash for overall cleanliness, lathering, skin condition, and skin dryness.
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