Bromothymol Blue synthetic dye that use in cosmetics for pH indicator and Color-changing cosmetics pH 6 = yellow, pH 7.6 = blue ฿142.00 View Cosmetics Usage:0.01-0.1%(0%) Cost:1.695-16.95฿/kg View
Bromocresol Green a synthetic dye that is commonly used as a pH indicator in various applications, including some cosmetic products yellow = pH below 4, green = pH around 5, blue = pH more than 6 ฿314.00 View Cosmetics Usage:0.01-0.1%(0%) Cost:3.995-39.95฿/kg View