Raw coconut water vinegar

[fictor]

This is what I am referring to.
http://www.tropicaltraditions.com/organ ... inegar.htm

This is made with coconut water and brown sugar.
The coconut water is obviously ok, from a Wai point of view,
but sugar should be white, containing no protein and other
residue, just carbohydrates.

However, this vinegar contains no sugar, because the bacteria has
converted it into lactic acid (is it not?), but it has a brown color, from
the brown sugar. Now, the labeling says 0 g. protein, but I am unsure
if this product is safe, regarding acne?

[RRM]

It may be relatively safe, but not totally safe, as 0.49 gram is also 0 gram.
If it would list 0.0 gram protein, then it might maximally contain 0.049 gram protein, and so on.
What causes the brown colour?

[fictor]

What causes the brown colour?

The manufacturer claims it is caused by the brown sugar, but
not specify exactly what chemical component in the sugar.

[RRM]

Sure, thats possible.