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Test formulation

Effect of emollients on dye rinse-off behavior. Copper red 6,64. Method: addition of 1 % emollient to finished hair dye cream evaluation of dye rinse-off in water ( 5 washes on hair tresses with each 10 ml standard shampoo). Test formulation. Copper Red 6,64. Before After 5 shampoo.

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Test formulation

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  1. Effect of emollients on dye rinse-off behavior Copper red 6,64 • Method: • addition of 1 % emollient to finished hair dye cream • evaluation of dye rinse-off in water • ( 5 washes on hair tresses with each 10 ml standard shampoo) Test formulation

  2. Copper Red 6,64 Before After 5 shampoo Test procedure 30 min color treatment 1 rinse with water 4 rinse with acidic shampoo (pH 4.5) After 24h 5 X wash with shampoo (10 ml shampoo in 250 ml water) RT colorimetry by Minolta CR 300 Shampoo composition SLES/CAPB/Protein surfactant 10 / 1 /0.3 pH 6

  3. Evaluation of dye rinse-off in water L value of shampoo solutions (mean of 3 tests) Shampoo washes:

  4. Color difference on locks after 5 washes Conclusion: Cetiol CC reduces dye wash-off behavior

  5. Evaluation of dye rinse-off in water L value of shampoo solutions (mean of 2 tests) Shampoo washes:

  6. Color difference on locks after 5 washes Conclusion: Cetiol CC reduces dye wash-off behavior

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