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learning about % in formulas
hey, im new at the whole formulating thing. and i keep messing up with the percentage in my formulas. i always go way to high. and i dont get what ingridients should be in what percentage. any tips on where i can find ore about witcch percentage i should put each ingridient. (tho yes its different from formula to oformula. if i gave the impression that i thought all ingridients was just used at a spesific percentage )
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3 Replies
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To get an idea of how much to use you can:
1. look at any and all material the ingredient supplier can provide you. Suppliers often provide recommended use levels, even tips on how to incorporate their material.
2. Look at other formulas and start recognizing trends. You can read off the back of labels you like and start guessing what the ingredients might be at. Perry often links people here.
3. If you are going way too high across the board, you can dilute some products by either adding water or a thinner version of the same product.Over time it gets easier to judge what level things need to be at to achieve certain feels/textures
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General Guidelines:
Plant Extracts 1% or less
Emulsifiers 2% to 4%
Fatty Alcohol Thickeners 2% to 3%
Gums 1% or less
Preservatives 1%
Surfactants 20% for primary, less for secondary surfactants. Shoot for a total surfactant load of 35% to 45%.If you are trying to dupe formulas by looking at list of ingredients, try to find the “!% line” … this will generally be a preservative, but not necessarily so. Regardless, if you find the 1% line … that is an ingredient most likely added at 1%, then all ingredients below that are added at less than 1% and all ingredients that preceed it are loaded at greater than 1% and are in descending order ranked from highest percentage to lowest percentage. As to how much of each, it’s an educated guess.
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thank you sooo much, that was help full, genuinly
EVchem
MarkBroussard
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