Table 3.
Viscosity measurements (mean ± SD, n = 3) for the tested shampoo brands.
| Time for sample | Pantene | Sunsilk | Herbal essences | Ultra Doux | Syoss | L'Oreal Elvive | ||
|---|---|---|---|---|---|---|---|---|
| At 25 °C | At zero time | 1 | 10131.67 ± 874.53 | 6213.67 ± 1544.62 | 9226.67 ± 797.26 | 5297.33 ± 473.66 | 3457 ± 435.57 | 9593.67 ± 1209.75 |
| 5 | 3566.0 ± 159.35 | 3304.67 ± 360.98 | 3551 ± 187.58 | 3447.67 ± 352.46 | 2668 ± 370.526 | 4792.67 ± 605.74 | ||
| 10 | 1762.67 ± 146.18 | 2022 ± 134.1801 | 1823.33 ± 150.01 | 2414.67 ± 109.16 | 1863 ± 167.57 | 2493.67 ± 317.23 | ||
| 20 | 938.80 ± 185.04 | 1130 ± 134.59 | 910.71 ± 142.02 | 1227.67 ± 145.24 | 1033.33 ± 137.82 | 1245.33 ± 113.77 | ||
| After four weeks | 1 | 9990.45 ± 654.53 | 6626.77 ± 1440.75 | 9303.45 ± 810.22 | 5927.27 ± 434.34 | 3554 ± 455.55 | 9610.12 ± 1190.60 | |
| 5 | 3510.5 ± 177.55 | 3298.55 ± 133.60 | 3490.51 ± 182.78 | 3320.45 ± 363.36 | 2611 ± 366.22 | 4801.55 ± 599.22 | ||
| 10 | 1797.67 ± 111.46 | 2199 ± 123.48 | 1804.46 ± 115.45 | 2390.89 ± 99.67 | 1845.63 ± 154.65 | 2503.56 ± 3287.78 | ||
| 20 | 925.88 ± 108.85 | 1090 ± 112.34 | 899.10 ± 112.02 | 1212.55 ± 105.24 | 1093.56 ± 103.37 | 1124.53 ± 104.13 | ||
| After eight weeks | 1 | 9980.11 ± 753.74 | 6187.67 ± 1505.44 | 9122.66 ± 806.77 | 5310.97 ± 510.47 | 3505. 57 ± 405.45 | 9222.93 ± 1190.97 | |
| 5 | 3511.66 ± 98.10 | 3285/557 ± 290.34 | 3515.11 ± 101.85 | 3222.44 ± 315.24 | 2466.83 ± 325.70 | 4814.67 ± 590.55 | ||
| 10 | 1715.62 ± 101.46 | 2185.15 ± 112.34 | 1788.81 ± 100.11 | 2388.23 ± 112.22 | 1801.37 ± 144.23 | 2511.11 ± 290.20 | ||
| 20 | 925.24 ± 105.34 | 1166.67 ± 107.23 | 905.34 ± 113.38 | 1144.67 ± 124.45 | 985.54 ± 102.37 | 1331.15 ± 96.67 | ||
| At 4 °C | After four weeks | 1 | 10000.11 ± 775.42 | 6113.34 ± 1414.44 | 9393.36 ± 800.97 | 5285.14 ± 510.11 | 3522.45 ± 403.55 | 9622.45 ± 1185.68 |
| 5 | 3336.45 ± 109.36 | 3270.50 ± 297.67 | 3505.17 ± 113.33 | 3404.77 ± 305.52 | 2560.68 ± 345.70 | 4710.09 ± 450.55 | ||
| 10 | 1706.67 ± 108.11 | 2191.88 ± 114.18 | 1790.45 ± 100.50 | 2400.14 ± 122.96 | 1786.33 ± 133.67 | 2511.22 ± 333.34 | ||
| 20 | 1009.10 ± 103.22 | 1206.66 ± 101.56 | 955.39 ± 102.56 | 1292.77 ± 124.12 | 997.67 ± 103.72 | 1124.33 ± 101.43 | ||
| After eight weeks | 1 | 9944.78 ± 790.34 | 6197.45 ± 1496.44. | 9226.67 ± 797.26 | 5297.33 ± 473.66 | 3457 ± 435.57 | 9593.67 ± 1209.75 | |
| 5 | 3495.57 ± 113.65 | 3322.56 ± 296.56 | 3499.30 ± 99.56 | 3411.47 ± 311.34 | 2575.57 ± 344.45 | 4811.55 ± 577.67 | ||
| 10 | 1744.67 ± 118.46 | 2111.11 ± 101.34 | 1801.33 ± 100.51 | 2488.46 ± 97.67 | 1805.67 ± 113.67 | 2513.67 ± 288.69 | ||
| 20 | 984.0.80 ± 114.08 | 1090.30 ± 103.45 | 955.10 ± 102.55 | 1311.22 ± 111.24 | 1005.29 ± 113.78 | 1194.59.33 ± 100.13 | ||
| At 45 °C and 75% humidity | After four weeks | 1 | 7315.67 ± 1234.71 | 6579.0 ± 70.71 | 8441.33 ± 531.53 ± 780.55 | 5290.22 ± 430.67 | 4542.33 ± 114.69 | 8992.5 ± 13.43 |
| 5 | 3793.33 ± 61.81 | 4110 ± 141.42 | 3495 ± 173.98 | 5197 ± 115.96 | 3522.67 ± 126.12 | 5001.5 ± 13.43 | ||
| 10 | 1961.33 ± 181.09 | 2382 ± 165.46 | 1911 ± 123.51 | 4209.33 ± 106.21 | 2120.33 ± 171.23 | 2583.5 ± 157.27 | ||
| 20 | 953.28 ± 125.84 | 1307.5 ± 108.19 | 1026 ± 125.16 | 2488.5 ± 177.07 | 1158.67 ± 145.78 | 1240.5 ± 140.30 | ||
| After eight weeks | 1 | 10110.88 ± 820.88 | 6499.36 ± 1510.44 | 9204.09 ± 805.55 | 5303.66 ± 461.73 | 3422 ± 410.33 | 9550.11. ± 1195.77 | |
| 5 | 3551.66 ± 165.95 | 3996.30 ± 355.69 | 3511 ± 190.19 | 3405.57 ± 343.36 | 2611 ± 361.70 | 4804.34 ± 595.65 | ||
| 10 | 1712.20 ± 155.46 | 2255 ± 144.44 | 1888.33 ± 112.50 | 2501.44 ± 111.19 | 1910 ± 155.89 | 2533.67 ± 290.77 | ||
| 20 | 925.80 ± 111.34 | 1190.13 ± 122.34 | 989.10 ± 114.22 | 2227.67 ± 122.45 | 1103.03 ± 141.78 | 1277.45 ± 99.90 | ||