Table 2.

Evaluation for physical appearance and pH (mean ± SD, n = 3).

	Time for sample	PH concentration	Pantene	Sunsilk	Herbal essences	Ultra Doux	Syoss	L'Oreal Elvive
Physical appearance			White, shiny	Faint yellow, shiny	Sky blue, shiny	Faint yellow, shine	Faint pink, shiny	Faint yellow, shiny
At 25 °C	At zero time	1%	6.34 ± 0.2	6.72 ± 0.6	6.04 ± 0.3	5.34 ± 0.5	4.99 ± 0.4	6.03 ± 0.3
		10%	6.13 ± 0.3	6.57 ± 0.3	5.92 ± 0.4	5.06 ± 0.2	4.82 ± 0.3	5.87 ± 0.4
	After four weeks	1%	6.23 ± 0.2	6.57 ± 0.6	5.97 ± 0.5	5.21 ± 0.5	4.87 ± 0.6	6.03 ± 0.10
		10%	6.03 ± 0.3	6.45 ± 0.5	5.79 ± 0.4	5.16 ± 0.2	4.68 ± 0.3	5.67 ± 0.7
	After eight weeks	1%	6.25 ± 0.3	6.61 ± 0.5	5.97 ± 0.5	5.21 ± 0.5	4.87 ± 0.6	6.03 ± 0.10
		10%	6.05 ± 0.4	6.52 ± 0.5	5.82 ± 0.5	5.24 ± 0.4	4.73 ± 0.4	5.74 ± 0.6
At 4 °C	At zero time	1%	6.34 ± 0.2	6.72 ± 0.6	6.04 ± 0.3	5.34 ± 0.5	4.99 ± 0.4	6.03 ± 0.3
		10%	6.13 ± 0.3	6.57 ± 0.3	5.92 ± 0.4	5.06 ± 0.2	4.82 ± 0.3	5.87 ± 0.4
	After four weeks	1%	6.34 ± 0.4	6.64 ± 0.4	5.85 ± 0.4	5.18 0.4	4.94 ± 0.4	5.96 ± 0.3
		10%	6.12 ± 0.4	6.52 ± 0.4	5.86 ± 0.5	5.26 ± 0.4	4.77 ± 0.4	5.74 ± 0.3
	After eight weeks	1%	6.14 ± 0.4	6.55 ± 0.4	5.86 ± 0.4	5.31 ± 0.4	4.69 ± 0.4	5.93 ± 0.4
		10%	6.15 ± 0.4	6.59 ± 0.4	5.79 ± 0.4	5.35 ± 0.5	4.63 ± 0.5	5.66 ± 0.4
At 45 °C and 75% humidity	At zero time	1%	6.34 ± 0.2	6.72 ± 0.6	6.04 ± 0.3	5.34 ± 0.5	4.99 ± 0.4	6.03 ± 0.3
		10%	6.13 ± 0.3	6.57 ± 0.3	5.92 ± 0.4	5.06 ± 0.2	4.82 ± 0.3	5.87 ± 0.4
	After four weeks	1%	6.41 ± 0.3	6.77 ± 0.4	6.55 ± 0.4	6.44 ± 0.3	5.55 ± 0.4	6.87 ± 0.3
		10%	6.33 ± 0.3	6.42 ± 0.3	6.22 ± 0.4	5.58 ± 0.4	5.513 ± 0.4	6.56 ± 0.3
	After eight weeks	1%	6.23 ± 0.3	6.74 ± 0.3	6.52 ± 0.3	6.44 ± 0.3	5.56 ± 0.5	6.42 ± 0.3
		10%	6.18 ± 0.4	6.65 ± 0.4	6.14 ± 0.4	5.37 ± 0.4	5.33 ± 0.4	6.23 ± 0.4