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What does “above this ratio” mean here?
“However the ratio of detergent solution to the monoethanolamide must be 100:15 and above
<div>this ratio may be harmful to scalp and hair.” From book TextbookofCosmetology. </div>Doe above this ratio mean more surfactant like SLES or more monoethanolamide?
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3 Replies
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I would read this as more monoethanolamide.
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…and this is where math and the author’s thinking (the author of your quote) might collide:
A ratio of 100:15 is greater than a ratio of 100:20, again, mathematically speaking. Increasing monoethanolide, you’ll get smaller and smaller ratios, whereas increasing the detergent solution, you’ll get greater ratios.
@Adamnfineman might be right, if the author used a poor choice of words to explain himself.
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@Adamnfineman @Aniela thanks a lot.
That had confused me too.
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