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What does this chart about emulsifying ability of LHS vs CAPB mean?
This chart is from supplier and it is supposed to show lauryl hydroxysultaine emulsifies more sebum than CAPB. But cant understand the chart.
What does ABS mean?
How is the chart showing that LHS is better than CAPB?
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4 Replies
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@Abdullah That chart is extremely missleading. First, you’re not comparing the sultaine va CAPB, but each mixed with SLES (they clearly interact differently with SLES). Then, I wouldn’t buy that SLES/CAPB is similar (or even slightly “less emulsifying”) to SLES alone, which contradicts the whole scientific literature and practical experience.
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ketchito said:@Abdullah That chart is extremely missleading. First, you’re not comparing the sultaine va CAPB, but each mixed with SLES (they clearly interact differently with SLES). Then, I wouldn’t buy that SLES/CAPB is similar (or even slightly “less emulsifying”) to SLES alone, which contradicts the whole scientific literature and practical experience.
Thanks
I don’t even understand the chart. Can you explain it a bit to me.
Is numbers in flat line like 0.04 and 0.05 the percentage of sebum in this test?
And what does those ABS numbers mean?
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The ABS numbers are a measure of how much light with a wavelength of 500 nm is absorbed by the sample.
I’m assuming that sebum oil has particular carbon chemistry that absorbs light in the 500 nm region. The sample that absorbs more light therefore has more of the absorbing compound, which we are lead to believe is sebum.
Without knowing a lot more about emulsion science and the details of the test, I remain skeptical that the graph actually demonstrates that LHS has indeed emulsified more sebum than CAPB in an identical situation.
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RobboAU said:The ABS numbers are a measure of how much light with a wavelength of 500 nm is absorbed by the sample.
I’m assuming that sebum oil has particular carbon chemistry that absorbs light in the 500 nm region. The sample that absorbs more light therefore has more of the absorbing compound, which we are lead to believe is sebum.
Without knowing a lot more about emulsion science and the details of the test, I remain skeptical that the graph actually demonstrates that LHS has indeed emulsified more sebum than CAPB in an identical situation.
Thanks
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