| Evaluation Parameters | Stability Studies of Herbal Shampoo Formulations (for 60 Days) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| F1 | F3 | F5 | ||||||||||
| 0 | 15 | 30 | 60 | 0 | 15 | 30 | 60 | 0 | 15 | 30 | 60 | |
| Physical Appearance | Light brown | Light brown | Light brown | Light brown | Light greenish brown | Light greenish brown | Light greenish brown | Light greenish brown | Dark brown | Dark brown | Dark brown | Dark brown |
| pH | 5.93 ±0.057 |
5.83 ±0.057 |
5.90 ±0.000 |
5.80 ±0.000 |
6.16 ±0.057 |
6.00 ±0.000 |
6.20 ±0.100 |
6.13 ±0.057 |
6.10 ±0.100 |
6.00 ±0.000 |
6.03 ±0.057 |
6.10 ±0.000 |
| Viscosity (cP) | 1.06 ±0.010 |
1.06 ±0.011 |
1.08 ±0.01 |
1.07 ±0.000 |
0.98 ±0.005 |
0.99 ±0.005 |
1.00 ±0.000 |
1.03 ±0.057 |
1.01 ±0.011 |
1.02 ±0.000 |
1.00 ±0.011 |
1.02 ±0.005 |
| Dirt Dispersion | Light foam | Light foam | Light foam | Light foam | Light foam | Light foam | Light foam | Light foam | Light foam | Light foam | Light foam | Light foam |
| Solid Content (%) | 1.75 | 1.78 | 1.80 | 1.84 | 2.54 | 2.59 | 2.61 | 2.65 | 1.76 | 1.79 | 1.83 | 1.86 |
| Surface tension (dyne/cm) | 42.18 ±0.965 |
42.48 ±1.49 |
41.65 ±0.406 |
39.67 ±0.465 |
35.88 ±1.65 |
35.61 ±0.587 |
36.79 ±0.625 |
37.14 ±0.201 |
32.96 ±0.140 |
34.12 ±0.230 |
33.80 ±0.786 |
32.95 ±0.178 |
| Wetting time (sec) | 11 | 10 | 11 | 11 | 5 | 4 | 5 | 4 | 9 | 8 | 8 | 9 |