Not exactly. To find out more about this and to understand the science of it, I spoke with Thong Vu, a CND chemist, on why one acetone may be different from another:
“Technically, there is no such thing as an absolute 100% pure chemical. There are always small traces of impurities in any chemical. Practically, the number is rounded (up or down) both in science and in life. The term '100%' is for purities of 99.50% to 99.99%.
Not all '100%' acetone is made the same. In fact, they differ in their purities (99.50% to 99.99%) and the contents of the impurities (the ones that make up the other 0.01% to 0.50%). While all 99.50% to 99.99% acetones can be considered "100%", the contents of the impurities assign them to different grades.
• U.S.P or N.F. grades are suitable for human use (in food, drug, and skin applications)
• "ACS" and "Reagent" are not certified for human use
• "Lab", "Purified", or "Technical" grades are also not pure enough for human use
For more information, visit http://secure.sciencecompany.com/Chemical-Grade-Designations-W53C665.aspx.
Acetone from hardware stores is probably not appropriate for human skin. Check the grade specified on their label. Acetone (100%) supplied by cosmetic distributors are more likely to comply.”
I hope this information helps you in the salon. Increasing costs for our services are another reason that salons need that 3.7% price increase every year. Shall we all consider a pact to go up at least 3.7% together this October?
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