Ethoxydiglycol
Back in the ’50s, home hair dyes were laced with toxic chemicals that turned a simple touch-up into a haz-mat operation. Luckily, dye makers found substitutes like EDG, a fume- free organic solvent that keeps the ingredients in a thin, pourable consistency.
Oleyl Alcohol, Vegetable Fatty Acid
That thin, pourable consistency would be problematic during application. Mixing the base with the separate bottle of “color developer” causes these two fatty organic thickeners to kick in, making the product cling to your hair like shampoo.
Ethanolamine
In last month’s episode of What’s Inside, this ingredient starred as a solvent in Easy-Off oven cleaner. Here it’s an alkalizer that boosts the pH toward bleachlike levels and swells the hair’s outer layer so the color can penetrate more fully.
Erythorbic Acid
If you take ascorbic acid — aka vitamin C — and rearrange the atoms just so (isomerization!), you get erythorbic acid. It’s a cheaper antioxidant that protects the […]
Original post by Patrick Di Justo
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