What haircolor is right for me?
Ingredients or Formulas The
simple answer is 'Not much'. Not any more than you can tell how a cake
is going to taste by reading the recipe.
Let's take shampoo just as an
example. Because manufacturers are required by law to list ingredients
by there ppm (parts per million), water is usually the first ingredient
in a shampoo. Take any shampoo that has water, as it's first
ingredient. Then add 1/4 teaspoon of that shampoo to a gallon of water.
If you write a new ingredient list it will read exactly the same. Do
you think the shampoo will clean your hair? Will it even lather?
Formulations are well-guarded secrets among manufacturers and rightly
so. There is no way to tell how a product is going to perform without
actually trying it.
As for ingredients that you may
be allergic to, you can and should avoid them. But to try and determine
how a cake is going to taste by reading the ingredients and without
tasting it? Not even a professional baker could do that. All the
ingredients are going to tell you are what kind of cake it is.
The following was taken from a
mesageboard that was discussing ingredient listings where someone was
trying to make a point about the amount of an ingredient in two given
products. This was the response given by a person with a Phd in science
and the point being made was that there is just not enough information
in an ingredient listing to tell if one product is better over another
or whether one product has more of an ingredient than another. I hope
you find this interesting.
"Here is an example to try to clarify the point I made before:
The FDA requires that ingredients
are listed in descending order of most parts per billion (quantity):
Here are the actual ingredients for 2 products (shamelessly C&Pd
from your earlier post). I have inserted hypothetical parts per billion
(ppb) values next to each ingredient.
#11 Medium Auburn
Ingredients:AFTER YOU ADD WATER (which is how you use it) WATER
999999045ppb, 2-Nitro-p-Phenylenediamine Sulfate 100ppb;
4-Amino-2-Hydroxytoluene 99ppb; 6-Cloro-2-Amino-4-Nitrophenol 98ppb;
p-Phenylenediamine Sulfate 97ppb; Sodium Lauroyl Sarcosinate 96ppb;
Sodium Sulfate 95ppb; Sodium Perborate 94ppb; Sodium Silicate 93ppb;
Sodium 92ppb; Xanthan Gum 91ppb
Brand X Colour Permanent
Haircolour Gel Ingredients: Water 999979210ppb, Cocamide Dea 1000ppb,
Butoxyethanol 999ppb, Peg-2 Tallow Amine 998ppb, Alcohol Denat 997ppb,
Polyglyceryl-4 Oleyl Ether 996ppb, Oleyl Alcohol,polyglyceryl-2 Oleyl
Ether 995ppb, Propylene Glycol 994ppb, Oleic Acid 993ppb, Sodium
Diethylaminopropyl Cocoaspartamide 992ppb, Ammonium Hydroxide 991ppb,
Fragrance 990ppb, Pentasodium Pentetate 989ppb, Ammonium Acetate
987ppb, P-aminophenol 986ppb, P-phenylenediamine 985ppb, Metabisulfite
984ppb, Resorcinol 983ppb, Erythorbic Acid 982ppb, Methyl Pyrazolone
981ppb, 6-hydroxyindole 980ppb.
Now what is NOT important is if
these numbers reflect reality. What IS important is that IF THERE WERE
two products with this profile:
1: They would have their
ingredients listed just as you originally listed them in your earlier
post 2: The TOTAL amount of PPDs in RC would be 198 ppb versus Brand X
which has PPDs of 985 ppb. 3. Brand X would have 5 TIMES more TOTAL
PPDs than RC even though it lists only ONE PPD on its ingredients list
and it is listed further down the ingredients list than RC.
I am NOT saying that RC has more
PPDs than Brand X or that it has less. What I am saying and what I hope
you get from this is that THERE IS NOT ENOUGH INFORMATION in the
ingredients list to be able to tell the amounts of PPDs that RC has
compared to Brand X. It IS IMPOSSIBLE to determine."