Cosmetic composition comprising two optical brighteners, method, use, and kit-of-parts thereof

Abstract

A cosmetic composition is disclosed comprising a synthetic optical brightener and a naturally-derived optical brightener. Both brightener classes absorb and emit light at different wavelengths and possess in combination a superior effect. The combination enhances color brilliance on keratin fibers under daylight and artificial light conditions.

Claims

1. A cosmetic composition for keratin fibers, the cosmetic composition comprising: two optical brighteners selected from a) first optical brightener is ##STR00013## and/or its salts having a light absorption maximum below 400 nm and a light emission maximum of 400 nm to 500 nm, and b) second optical brightener is hydrolyzed Verbascum thapsus flower and/or Verbascum thapsus extract having a light absorption maximum of 400 nm to 450 nm and a light emission maximum of 450 nm to 700 nm, wherein a weight ratio of the first optical brightener to the second optical brightener is in a range from 1 to 10,000, calculated as dry matter to a total of the cosmetic composition.

2. The cosmetic composition of claim 1, further comprising cationic surfactants, anionic surfactants, zwitterionic surfactants, amphoteric surfactants, non-ionic surfactants, and/or a mixture of more than one surfactant.

3. The cosmetic composition of claim 1, further comprising a weight ratio of total anionic surfactant to total amphoteric surfactant in a range from 2.55 to 155.

4. The cosmetic composition of claim 1, wherein the cosmetic composition has a pH range of 3.0 to 8.0.

5. The cosmetic composition of claim 1, further comprising linear silicones, cyclic silicones, and/or siliconols.

6. The cosmetic composition of claim 1, further comprising cationic conditioning polymers.

7. The cosmetic composition of claim 1, further comprising: a. a compound of a general structure ##STR00014## wherein R.sup.9 is a linear or branched alkyl chain with a total carbon number of C.sub.3 to C.sub.12.

8. The cosmetic composition of claim 1, further comprising aminosilicone.

9. A method of conferring shine, luster, and color brilliance to keratin fibers, the method comprising: a) applying the cosmetic composition of claim 1 to keratin fibers during or after washing, b) massaging the cosmetic composition into the keratin fibers for a time period of 10 seconds to 600 seconds, c) optionally rinsing the cosmetic composition off the keratin fibers, d) optionally drying the keratin fibers.

10. A kit-of-parts comprising: the cosmetic composition of claim 1; a conditioning composition for keratin fibers; and a blow dryer.

11. The cosmetic composition of claim 4, wherein the pH range of the cosmetic composition is 3.5 to 6.5.

12. The cosmetic composition of claim 11, wherein the pH range of the cosmetic composition is 4.5 to 5.5.

13. The cosmetic composition of claim 4, wherein the weight ratio of the first optical brightener to the second optical brightener ranges from 1 to 100, calculated as dry matter to a total of the cosmetic composition.

14. The cosmetic composition of claim 12, wherein the cosmetic composition is in the form of a styling composition.

Description

EXAMPLES

Example 1

(1) The following cleansing compositions were prepared by conventional formulation techniques:

(2) TABLE-US-00001 Comparative 1 Comparative 2 Inventive INCI [by weight] [by weight] [by weight] Sodium Laureth Sulfate 10.0%  10.0% 10.0% Sodium Lauroyl 3.0%  3.0%  3.0% Sarcosinate Lauryl Hydroxysultaine 1.0%  1.0%  1.0% Disodium — 0.01% 0.01% Distyrylbiphenyl disulfonate* Hydrolyzed Verbascum 0.5% — 0.49% Thapsus Extract** Water Ad 100.0% *Tinopal CBS-X by BASF Corp. **Luminescine by PhenBiox Corp.

(3) The pH of all of the compositions was adjusted to 5.5 with HCl/NaOH.

(4) Caucasian hair streaks were obtained from Fischbach+Miller Haar, Laupheim, Germany, having a length of about 21 cm. The hair streaks were equally colored with oxidative hair color marketed under the tradename Goldwell Topchic. Upon washing with a commercial shampoo marketed under the tradename Goldwell Dualsenses Deep Cleansing Shampoo, the hair streaks were air dried. 2 g of the above compositions were applied onto the pre-colored hair streaks and each streak was massaged for 60 s. The hair streaks were then rinsed-off with water and blow-dried with a conventional blow-drier.

(5) The treated hair streaks were evaluated by a panel of 10 trained experts under two different light conditions: 1) under day-light conditions, and 2) under an artificial light source which is common in office buildings. As artificial light source a fluorescent lamp marketed under the trade name Lumilux Cool White by Osram Corp. was selected. The trained experts did not receive information in the treatment groups prior to their evaluation. The experts were asked to judge color brilliance. They were given a scale from 1 to 10 wherein 1 is a rating for poor performance and 10 is a rating for excellent performance. Judgement was performed against untreated streaks.

(6) TABLE-US-00002 Com- Com- Com- Com- para- para- Inven- para- para- Inven- tive 1 tive 2 tive tive 1 tive 2 tive artifi- artifi- artifi- Panel- day- day- day- cial cial cial list # light light light light light light 1 4 5 7 6 7 9 2 3 5 6 7 8 10 3 5 4 5 5 6 8 4 3 4 6 5 6 7 5 4 3 5 6 6 7 6 4 5 7 6 5 7 7 6 5 8 7 7 9 8 6 4 7 5 7 8 9 3 4 6 5 6 8 10 5 6 6 7 6 7 Mean 4.3 4.5 6.3 5.9 6.4 8.0 value Stan- 1.16 0.85 0.95 0.88 0.84 1.05 dard devi- ation

(7) Statistical evaluation of results was performed with one-way ANOVA combined with a Tukey's posthoc test with freely available software.

(8) For the treatment groups under daylight conditions, there was no significant difference found between comparative 1 and comparative 2 (p>0.1). However, each comparative example performed significantly worse than the inventive example (p<0.01).

(9) For the treatment groups under artificial light conditions, there was also no significant difference found between comparative 1 and 2 (p>0.1). Each comparative example performed significantly worse than the inventive example (p<0.01).

(10) As a result, the inventive example was superior under daylight and artificial light conditions in terms of color brilliance as shown by superior judgements by experts.

Example 2

(11) The following leave-in treatment for hair was prepared by conventional formulation techniques.

(12) TABLE-US-00003 Ingredients % by weight Trisiloxan 12.0% Cyclopentasiloxane  9.0% Dimethiconol  1.5% Polyquaternium 37  1.0% Ethylhexyl glycerine  0.1% Phenoxyethanol 0.70% Disodium Distyrylbiphenyl disulfonate* 0.05% Hydrolyzed V. thapsus flower** 0.25% Water ad 100.0% *Tinopal CBS-X by BASF Corp. **Luminescine by PhenBiox Corp.

(13) The pH of the above composition was adjusted to 5.0 with HCl/NaOH.

Example 3

(14) The following leave-in treatment for hair was prepared by conventional formulation techniques.

(15) TABLE-US-00004 Ingredients % by weight Trisiloxan 12.0% Cyclopentasiloxane  9.0% Dimethiconol  1.5% Polyquaternium 37  1.0% Ethylhexyl glycerine  0.1% Phenoxyethanol 0.70% Disodium Distyrylbiphenyl disulfonate* 0.05% Hydrolyzed V. thapsus flower** 0.25% Basic Blue 124 0.10% Water ad 100.0% *Tinopal CBS-X by BASF Corp. **Luminescine by PhenBiox Corp.

(16) The pH of the above composition was adjusted to 5.0 with HCl/NaOH.

Example 4

(17) The following cleansing composition was prepared by conventional formulation techniques.

(18) TABLE-US-00005 Ingredients % by weight Sodium laureth sulfate 12.5 Sodium lauroyl sarcosinate 1.0 Lauryl hydroxysultaine 2.0 Ethylhexylglycerin 1.0 Polyquaternium 10 0.5 Amodimethicone microemulsion* 0.6 Sodium chloride 2.0 PEG-150 Pentaerythrityl Tetrastearate 0.25 Trideceth-10 0.5 Butylene glycol 0.25 Disodium Distyrylbiphenyl disulfonate** 0.05 Hydrolyzed V. thapsus extract*** 0.45 Preservatives q.s. Water ad 100 *X-52-2265 from Shin-Etsu Corp. **Tinopal CBS-X from BASF Corp. ***Luminescine from Phenbiox Corp.

Example 5

(19) The following hair conditioning composition was prepared by conventional formulation techniques.

(20) TABLE-US-00006 Ingredients % by weight Cetearyl alcohol 5.0 Light mineral oil 2.0 Ceteareth-10 0.5 Cetrimonium chloride 2.0 Quaternium 80 2.0 Propylen glycol 0.5 Phenoxyethanol 0.70 Disodium Distyrylbiphenyl disulfonate* 0.05 Hydrolyzed V. thapsus flower** 0.25 Basic Blue 124 0.10 Water ad 100.0 *Tinopal CBS-X by BASF Corp. **Luminescine by PhenBiox Corp.

(21) The pH of the above composition was adjusted to 5.0 with HCl/NaOH.

Example 6

(22) The following hair conditioning composition was prepared by conventional formulation techniques.

(23) TABLE-US-00007 Ingredients % by weight Cetearyl alcohol 5.0 Light mineral oil 2.0 Ceteareth-10 0.5 Stearamidopropyl dimethylamine 2.0 Quaternium 80 2.0 Polyquaternium 10 0.2 Propylene glycol 0.5 Phenoxyethanol 0.70 Disodium Distyrylbiphenyl disulfonate* 0.05 Hydrolyzed V. thapsus flower** 0.25 Basic Blue 124 0.10 Water ad 100.0 *Tinopal CBS-X by BASF Corp. **Luminescine by PhenBiox Corp.

(24) The pH of the above composition was adjusted to 5.0 with HCl/NaOH.