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View Full Version : less than .05 preservatives?

bbrown1226
04-25-2006, 12:31 PM
O.k, I was asked this question, and always wondered myself. Our products say less than .5 preservatives, but if you are using 7 different products in the morning, does that me they all add up to 3.5% preservatives? Curious...

cassandra
04-25-2006, 01:18 PM
no, that's the percentage of how much that product is preservatives
bbrown1226
04-25-2006, 02:30 PM
I know, but if you are using several products w/ small amounts of preservatives, do the "stack up" the more products you use?

cassandra
04-25-2006, 02:38 PM
no, because it's a percentage of the amount of perservatives in the product... in a way it's like the spf... wearing an 8 and a 15 together won't give you 23
anet
04-25-2006, 02:45 PM
Look at it this way. If you use one product, say you use 1 mililiter of it per day .005ml of that is preservative.


If you use 5 products per day, and use 1 mililiter of each, that is 5 mililiters a day, with .025 of it being preservative.


if you divide it out, the percentage is the same, because it is spread out over more products. Does that make sense?


(I simplified the numbers and am not a math whiz,smileys/smiley5.gif so please be kind to me if I got the decimal in the wrong place, smileys/smiley36.gif)
cassandra
04-25-2006, 02:58 PM
you do get more preservatives, but you also get more product, but the percentage of preservative to product is still the same