HAIR CARE
Long-lasting colour protection, wash after wash Chromapol ColorPOP polymer is a new hair care technology from Lubrizol Life Science Beauty to maintain the intensity and vibrance of colour-treated hair. Its benefits and high performance are supported by Lubrizol’s polymer expertise on colour deposition and film-forming properties. By Narjis Askar, Eulalia Peri, Juliana Gomiero, Elena Cañadas, Jean Xavier and Raquel Delgado of Lubrizol Advanced Materials (Cleveland, US)
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ubrizol Life Science Beauty recently launched Chromapol ColorPOP polymer (INCI name: Polyurethane-10) to meet consumers’ need for long-lasting colour protection in permanent, semi-permanent and temporary colour products, as well as in shampoos, conditioners and leave-on treatments. It is suitable for vegan products, easy to use, cold processable and compatible with various dyes, pigments, colourants and surfactants. By speaking to women of different ages who dye their hair periodically, either at home or in-salon, Lubrizol Life Science Beauty identified key consumer insights into their colour protection needs. The conversations also revealed that colouring their hair allows a lot of women to feel good about themselves and it boosts their self-confidence. Women’s top priorities when it comes to colouring their hair include grey coverage, longlasting colour quality from roots to tips, and conditioning performance for healthy-looking hair.
A MULTIFUNCTIONAL SOLUTION FOR VIVID COLOUR Chromapol ColorPOP polymer showed excellent results when tested in hair care products and in hair colouring applications on various hair types, including 100% grey hair. In a permanent hair colour product, Chromapol ColorPOP polymer effectively protected the hue (measured by Delta E) and saturation of colour (measured by Delta L), while maintaining tonality (measured by Delta A) for up to 30 washes compared to a benchmark. Chromapol ColorPOP polymer also extended the life of a semi-permanent colour, which normally lasts six washes, to 10 washes. In sulfated shampoos, the polymer protected colour for up to 20 washes. In a sulfate-free shampoo and conditioner combination, colour lasted up to 25 washes.
PERMANENT COLOURATION TEST A test was conducted on 100% grey/white hair tresses to determine Chromapol ColorPOP polymer’s effect on colour protection for up
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AUGUST 2021 // WWW.PHARMACOS.CO.ZA
Figure 1: Colour protection in permanent colouration – Delta E 30 washes. Results show statistical significance versus the benchmark polymer: **** p < 0.0001
to 30 washes. An average of three tresses per treatment were coloured with intense dark red cherry 6R (CO-0028) permanent hair colour with 0.4%TS Chromapol ColorPOP polymer or a benchmark polymer, mixed with a commercial 20V developer. Thereafter, colour protection was analysed using the TPBRK-0028 method. The permanent colour with Chromapol ColorPOP polymer showed lower Delta E values than the benchmark polymer, helping to protect colour for up to 30 washes (see Figures 1 and 2).
CONDITIONING PERFORMANCE TEST Level-4 European brown hair was used to test the conditioning performance of the polymer. An average of three tresses per treatment were coloured with intense dark red cherry 6R CO-0028 permanent hair colour with 0.4%TS Chromapol ColorPOP polymer, a benchmark polymer, or the control, mixed with commercial 20V developer. Thereafter, the tresses were washed with a 10%TS SLES-2 solution. The results showed Chromapol ColorPOP polymer provided significantly better wet detangling, wet
Figure 2: Colour protection results in permanent colouration shown in pictures of tresses after five and 30 washes
combing, and softness and smoothness performance compared to the control (see Figure 3).
HAIR CARE APPLICATION STUDY To assess colour protection in a sulfated shampoo formulation, 100% grey/white hair tresses were coloured with 6R permanent hair colour (without a conditioning/
Figure 3: Conditioning performance results in permanent colouration show statistical significance versus the control **** p < 0.0001
