Environmentally responsible personal cleansing compositions with high performance
View Patent ↗A method is provided for formulating a personal cleansing composition. At least one primary surfactant, at least one secondary amphoteric and/or nonionic surfactant, at least one humectant, and at least one polymeric and/or quaternary conditioner are selected, each of these components having a natural and renewable resource origin. The primary and secondary surfactants are combined with the at least one humectant and the at least one conditioner in a final composition that includes the combined primary and secondary surfactants at less than about 14 wt. %, and includes the combined at least one humectant and at least one conditioner at less than 5.5 wt. %. After forming the final composition, an optimum performance index (OPI) is determined for the composition to ensure that the composition has an OPI of at least about 5.450. The OPI is calculated as: OPI=3÷((solids wt. %+Zein score)÷performance grade).
1. A method of formulating a personal cleansing composition, comprising:
selecting at least one primary surfactant;
determining whether the at least one primary surfactant has a natural and renewable resource origin, and if it does not, then selecting instead at least one different primary surfactant that has a natural and renewable resource origin;
selecting at least one secondary amphoteric and/or nonionic surfactant;
determining whether the at least one secondary amphoteric and/or nonionic surfactant has a natural and renewable resource origin, and if it does not, then selecting instead at least one different secondary amphoteric and/or nonionic surfactant that has a natural and renewable resource origin;
selecting at least one humectant;
determining whether the at least one humectant has a natural and renewable resource origin, and if it does not, then selecting instead at least one different humectant that has a natural and renewable resource origin;
selecting at least one polymeric and/or quaternary conditioner;
determining whether the at least one polymeric and/or quaternary conditioner has a natural and renewable resource origin, and if it does not, then selecting instead at least one different polymeric and/or quaternary conditioner that has a natural and renewable resource origin;
combining the selected primary and secondary surfactants with the at least one selected humectant and the at least one selected conditioner in a final composition including the combined primary and secondary surfactants at less than about 14 wt. %, and further including the combined at least one humectant and at least one conditioner at less than 5.5 wt. %;
ensuring that the final composition has a total carbon percentage no greater than about 11.5%;
ensuring that the final composition has carbon dioxide emissions that do not exceed about 2.5 g per 5 g of product dose or usage; and
ensuring that the final composition having an optimum performance index (OPI) of at least about 5.450, calculated by the formula:
OPI=3÷((solids wt. %+Zein score)÷performance grade).
2. The method according to claim 1 , further comprising:
ensuring that the performance grade component of the OPI is at least about 80% of a maximum possible grade.
3. The method according to claim 1 , further comprising:
ensuring that the solids wt. % component of the total solids concentration is no greater than about 24 wt. %.
4. The method according to claim 1 , further comprising:
selecting a preservative that is a non-formaldehyde-releasing compound and also is a non-paraben and a non-isothiazolinone compound; and
combining the preservative as part of the final composition.
5. The method according to claim 1 , further comprising:
ensuring that the final composition imparts superior skin moisturization when compared with water.
6. The method according to claim 1 , wherein the step of selecting the at least one primary and secondary surfactants and the at least one humectant includes selecting compounds that experience greater than 60% biodegradation within 28 days.