Hi. I've been curious about the pH of my filtered drinking water, so I bought pH testing drops ( "pH Perfect" brand). After discovering that my filtered water is slightly alkaline (it tested at an 8) , I got curious and decided to test Dasani bottled water and also CVS brand distilled water. Both the Dasani water and the distilled water tested at a 4, which is quite acidic.
So I'm confused. The info on the website says that even a 5.5 pH would be acidic enough to make henna dye-release in an optimal manner. So if Dasani water and distilled water are acidic enough, why would fruit juice or fruit acid powders be needed for dye release?
Thanks!
Maya
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