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water quality
I just got back from a doctor’s appointment and he asked me what water I drink. (I drink the same bottled R.O. water I use for my products, from a very well known company.) He told me to change to an alternative because it has too much salt. This was quite a surprise as you can imagine.
So, on arrival home, I checked the bottled water. It states: <5mg per 100mL. Which seems little, but then, 100 mL is only 0.1Kg and so 1Kg of this water contains possibly 50mg of sodium. I think it is safe to assume NaCl, which, doing a little math, 120mg of sodium chloride per kilogram.Is this good enough for cosmetic products or should I change my supplier? -
7 Replies
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I’ve just discovered it is natural spring water and so has minerals in it. I’ll have to get my ion-exchange column installed. I checked other water - and guess what? For instance, coca-cola sell one called Ciel. And they ADD minerals to it “to make it taste better” (hell, what else can we expect from a company like they are?) So, I now have to say: DON’T TRUST R.O. WATER - they may be adding all kinds of crap.
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Wow, interesting. Thanks for the share.
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I think you would be better off with distilled water. That is what I subscribe to, although some say deionized water is much better because even distilled water may contain organic residues.
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I find it difficult to comprehend how deionized water could have less organic residue than distilled water - it just doesn’t make sense.
It would be an acceptable argument to say that the extra cost of distilled water is not worth the increase in purity of the water, and that properly filtered deionized water provides everything needed for cosmetic manufacturing.It might also make sense to say that commercially available distilled water has insufficient quality control, and might allow some organic residue through. But to paint all distilled water with the same brush is disturbing from a chemistry point of view, since I know that it is possible to distill water to the point that no contamination is even faintly detectable. -
@Belassi. I don’t understand why you think that adding minerals to bottled water is wrong. Most bottled water is just municipal water that has been purified by R.O. and then some minerals are added back to make it taste like water again. I never seen a brand that claims R.O. water on the label. On the other hand, here in the US, there is a brand that bottles distilled water and I personally think it is undrinkable. Mineral and spring water are a different animal. They normally contain quite a bit of calcium and magnesium carbonates, but in general they are low in sodium.
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It might be OK to drink but I don’t need any added minerals in my products!
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Well, I must confess that it was some sellers on UK Amazon who were making these claims.
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