Hair protection and repair composition

Abstract

An oily composition comprising a triglyceride carrier, squalene, coconut oil based alkanes, melon seed oil, argan seed oil, and argan seed oil unsaponifiables for use in rinse-off or leave-on hair products to protect the hair cuticle. The use of 0.001%-25% of the composition in rinse-off / leave-on products provides many improvements to the condition of the hair, such as improved hair moisture content, hair shine, reduced fraying, reduced inter-fiber friction, improved curl retention, improved hair smoothness, filling / correcting defects in the hair cuticle, improved hair appearance, increased hair breaking strength, and / or hair elasticity. The use of 0.001%-25% of the composition can also prevent hair moisture loss; split ends; formation of gaps and voids in the cuticle; loss of hair tensile strength; loss of hair elasticity; hair breakage; and / or increased inter-fiber friction.

Description

[Technical field]

[0001] The present invention provides an oily composition and a method of using the oily composition in a rinse-off or leave-on hair product to prevent damage to the hair cuticle and repair damage to the hair cuticle, thereby improving the appearance and structural properties of the hair. [Background technology]

[0002] This application claims priority to U.S. Provisional Patent Application No. 63 / 307,711, entitled “HAIR PROTECTION AND REPAIR COMPOSITION,” filed February 8, 2022, which is incorporated by reference in its entirety. Summary of the Invention [Means for solving the problem]

[0003] The present invention provides compositions and methods of using oily compositions in rinse-off or leave-on hair products for repairing and protecting the hair cuticle from damage.

[0004] The present invention provides an oily composition for use in a rinse-off or leave-on hair product to protect the hair cuticle, the composition comprising a triglyceride carrier, squalene, a coconut oil-based alkane, melon seed oil, argan seed oil, and argan seed oil unsaponifiables. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0005] The present invention provides a composition that can be used in rinse-off or leave-on hair products such as shampoos, conditioners, and treatment packs. The use of 0.001% to 25% of the composition of the present invention in rinse-off / leave-on products provides many improvements to the condition of the hair. Such improvements include improved hair moisture content, hair shine, reduced flyaways, reduced inter-fiber friction improving hair fit, reduced friction between hair fibers, improved curl retention, improved hair smoothness, filling / correcting defects in the hair cuticle, improving hair appearance, increasing hair breaking strength, and / or hair elasticity. The use of 0.001% to 25% of the composition of the present invention in rinse-off / leave-on products can also prevent hair moisture loss, split ends, cuticle gaps and voids, loss of hair tensile strength, loss of hair elasticity, hair breakage, and / or increased inter-fiber friction. The composition includes a triglyceride carrier, squalene, coconut oil based alkanes, melon seed oil, argan seed oil, and argan seed oil unsaponifiables.

[0006] The combination of the polar lipid fraction from argan oil with melon oil in a penetration enhancing vehicle provides superior protection against damage to hair caused by repeated wash / blow-dry / comb cycles. The present invention, referred to herein as CapiSeal™, provides significant hair damage prevention capabilities. The preferred range of CapiSeal concentration is 1% to 5%, with 3% being the optimum concentration from a cost, effectiveness and aesthetic standpoint. EXAMPLES

[0007] (Evaluated parameters) The hair breaking strength was evaluated using a Mini-Instron type tester.

[0008] (process) Virgin and bleached individual Caucasian hair strands were tested for breaking strength. All tests were completed with a minimum of 10 hair strands. All test cells were subjected to the following hair damage protocol: wash with 50°C-60°C water containing 15% SLS for 5 minutes; blow dry with a 1000W hair dryer on high heat for 5 minutes while combing. This cycle was repeated 10 times.

[0009] (Test cell) The following formulations were tested for efficacy: Many compositional parameters were explored for variation in determining product efficacy, including the importance and specificity of the argan concentrate, the concentration and necessity of Vegelite, the specificity of the carrier triglyceride-based oil, and the role of squalane.

[0010] [Table 1]

[0011] (Test Results) The above composition (referred to herein as the CapiSeal™ variant) was used in amounts of 1%, 3% and 5% in a 15% SLS based shampoo. Hair samples were treated as described above. The breaking strengths from the various tests are shown in Table 2 below. The results shown are the average of 10 strands tested.

[0012] (Necessity and specificity of Vegelite and triglyceride oils) The treatment procedure resulted in considerable damage to both virgin and bleached hair, as shown in the untreated cells in Table 2 (25% and 43%, respectively). Table 2 (cells 1, 3, 7, 8, 9) also shows that Vegelite 912 (a blend of low molecular weight alkanes) improves the activity of the protective oils. This is due to a penetration enhancing effect. The elimination of Vegelite (cell 3) or the replacement of Vegelite with an alternative alkane (hemisqualane, Centerchem) (cell 9) results in a poorer product with some activity, but not maximum activity. Increasing the concentration of Vegelite up to 20% did not provide any further benefit. Comparison of cells 1 and 8 shows that both sunflower and safflower oils are equally acceptable from the point of view of damage prevention.

[0013] [Table 2]

[0014] (Necessity and concentration of argan concentrate) The absolute amount of argan concentrate required in the CapiSeal™ blend is shown in Table 3 below, which shows that as the concentration of argan concentrate increases, the beneficial effects are enhanced. In Table 3, the CapiSeal™ variant was used at 3%. The argan concentrate appeared to be most effective between 0.1% and 1%.

[0015] [Table 3]

[0016] (Specificity of Argan Concentrate) We also investigated the specificity of Argan Concentrate (AC). AC is a blend of polyphenols and terpenes. The average molecular weight of the blend is extremely low, such as about 250-350. Its composition is composed of carbon, hydrogen, and nitrogen, without nitrogen (such as amines) and sulfur (such as sulfates and sulfites). It has an acid value of less than 10, and a specific gravity of about 0.85. Two commercially available terpene or polyphenol blends were selected to compare their activity. Mixed green tea polyphenols (<85%, Ministar) and mulberry terpenoid extract (Pacific Technology Partners) were tested. These two alternatives were compared to AC, formula #5 in Table 1. As can be seen in Table 4 below, green tea polyphenols were ineffective in damage protection. The mulberry blend, which has properties similar to AC, shows real protection, but with reduced protection compared to AC.

[0017] [Table 4]

[0018] (Benefits of Squalane) In Table 5, cells 8 and 10 show that squalane is beneficial in the composition. Although the product is still highly effective without squalane, the performance is greatly improved by using 4% squalene.

[0019] [Table 5]

[0020] (Aesthetic effect) Finally, the last table, Table 6, shows the optimum concentration of CapiSeal™ to use in the shampoo system. The concentration of CapiSeal™ was varied in Formulation #1 of Table 1 to test for damage prevention at 1%, 3%, and 5%. As shown in Table 6, 1% CapiSeal™ showed a modest damage minimization effect (approximately half the damage observed with the control), but increasing the concentration to 3% dramatically improved performance (approximately 90% damage prevention). Further increasing CapiSeal™ to 5% did not provide any additional benefit. Therefore, 3% is recommended as the optimum concentration.

[0021] [Table 6]

[0022] (Uncontrolled study) In an uncontrolled in-use preference study, 30 subjects were asked to use a plain shampoo containing 1%, 3%, or 5% CapiSeal™ (formulation #1). Ten subjects were asked to use the designated concentration as their only hair care product for 7 days and shampoo daily.

[0023] At the end of the study, panelists were asked two questions: "Did you notice any beneficial conditioning effects?" and "Did you notice any unpleasant build-up or excessive conditioning?" The results of the uncontrolled studies are summarized as follows:

[0024] (1% CapiSeal(TM)) - Have you noticed any beneficial conditioning effects? Positive: 8 / 10 - Have you noticed any unpleasant build-up or over-conditioning? Positive: 0 / 10

[0025] (3% CapiSeal(TM)) - Have you noticed any beneficial conditioning effects? Positive: 10 / 10 - Have you noticed any unpleasant build-up or over-conditioning? Positive: 0 / 10

[0026] (5% CapiSeal(TM)) - Have you noticed any beneficial conditioning effects? Positive: 10 / 10 - Have you noticed any unpleasant build-up or over-conditioning? Positive: 0 / 10

[0027] (Conclusion) Based on consumer testing and breaking strength measurements, the preferred concentration range for CapiSeal™ Formula #1 is 1% to 5%, with 3% being the optimum embodiment of the present invention. The carrier triglyceride oil does not appear to be critical. Both sunflower and safflower oils provide similar benefits. Cost, cache, and aesthetic considerations should determine which product to use. 4% squalane improves the activity of the product. Higher concentrations have not been tested due to cost considerations. The penetration enhancer Vegelite 912 is most effective at 10% and outperforms similar hydrocarbons. Argan concentrate is most effective at 0.1% to 1.0%. 0.1% is the optimum concentration for cost considerations. Argan concentrate provides unique benefits while similar terpenoid blends provide reduced efficacy. Using 3% CapiSeal™ is the optimum concentration to maximize efficacy and avoid undesirable aesthetic effects.

[0028] It should be understood that the above description and examples are illustrative and not limiting. Many embodiments will be apparent to those skilled in the art upon reading the above description and examples. Therefore, the scope of the present invention should not be determined with reference to the above description and examples, but rather with reference to the appended claims and the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes.

Claims

1. 1. An oily composition for use in a rinse-off or leave-on hair product for protecting the hair cuticle, the oily composition comprising a triglyceride carrier, squalene, a coconut oil-based alkane, melon seed oil, argan seed oil, and argan seed oil unsaponifiables.

2. 2. The composition of claim 1, wherein the triglyceride carrier is sunflower oil or safflower oil.

3. 2. The composition according to claim 1, characterized in that the coconut oil-based alkane is Vegelite 912.

4. 2. The composition of claim 1, wherein the melon seed oil contains triglycerides.

5. 2. The composition according to claim 1, characterized in that the argan seed oil contains triglycerides.

6. 2. The composition according to claim 1, characterized in that the argan seed oil unsaponifiable matter is a terpenoid or a branched hydrocarbon.

7. 2. The composition according to claim 1, characterized in that it contains 73.9% to 93.9% of triglyceride carrier, 0% to 20% of coconut oil based alkane, 0% to 4% of squalene, 1% of melon oil, 1% of argan seed oil and 0% to 1% of argan seed oil unsaponifiables.

8. 8. The composition according to claim 7, characterized in that 1% to 5% of the composition is used in rinse-off or leave-on products.

9. 8. The composition according to claim 7, characterized in that 3% of the composition is used in rinse-off or leave-on products.

10. 1. A method of improving the condition of hair, said method comprising using a rinse-off or leave-on hair product comprising 0.001% to 25% of a composition comprising a triglyceride carrier, squalene, a coconut oil based alkane, melon seed oil, argan seed oil, and argan seed oil unsaponifiables.

11. 11. The method of claim 10, wherein the condition of the hair that is improved is the breaking strength of the hair.

12. 11. The method according to claim 10, wherein the condition of the hair that is improved is the moisture content of the hair.

13. 11. The method of claim 10, wherein the improved hair condition is hair shine.

14. 11. The method of claim 10, wherein the hair condition that is improved is inter-fiber friction.

15. 11. The method of claim 10, wherein the hair condition that is improved is the curl retention of the hair.

16. 11. The method of claim 10, wherein the improved hair condition is hair smoothness.

17. 11. The method of claim 10, wherein the hair condition that is improved is hair elasticity.

Images