belassi
Forum Replies Created
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How disgusting.
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It’s probably the allantoin.
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https://www.sciencedirect.com/topics/pharmacology-toxicology-and-pharmaceutical-science/bronopol Not a preservative I would be using.
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Not to mention that olive oil causes dandruff,
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The last time I used violet it turned to turquoise when exposed to sunlight. You could see the change it was so fast. For a while I considered selling colour-changing shampoo. But no.
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Shouldn’t the order of addition be to neutralise before adding alcohol? It’s probably the fragrance though.
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apart from its sensitising potential.
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Try it and see.
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Thalidomide was regarded as safe until thousands of malformed babies were born. I suggest that the actual evidence is that the preservative is unsafe.
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What dermatologists say.
The first cases of ACD to MCI/MI were reported in 1985 from cosmetic use, marking the beginning of the first epidemic to isothiazolinones. In 1988, de Groot and colleagues reported on the significant ingredients responsible for allergy to cosmetics. In the 119 patients with cosmetic-related contact dermatitis, 56.3% were associated with skincare products. They also found that preservatives were most frequently implicated (32.0%), followed by fragrances (26.5%) and emulsifiers (14.3%). The most significant cosmetic allergen was Kathon CG, (a preservative system containing, as active ingredients, a mixture of MCI and MI) reacting in 33 patients (27.7%). Within 6 months de Groot and Herxheimer published another study on a significant number of the cases of Kathon CG (MCI/MI) allergy caused by products of the “leave-on” variety (eg, moisturizing creams) and stated that an epidemic had begun.
- a SAFE preservative? I think not. -
https://web.facebook.com/Zolinones-100514198452842
- My Facebook page. -
What is the criteria by which we decide when a reaction effects enough people that the ingredient is banned from products?
- In my opinion commercial interests. They like it because it is incredibly cheap. -
You would use potassium chloride in order to maintain the correct electrolyte balance. 1% sodium chloride in one litre is 10g of salt!! I assume you don’t want to give your customers high blood pressure or palpitations?
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What convinces me? My two dogs. Other people’s dogs. My own hands (Blumen liquid soap). Huge numbers of consumer complaints. Consumer groups campaigning against it. There’s another member here who is being damaged by it. Is that not enough?
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Parabens are non-sensitising, broad spectrum, and effective in low concentrations. A good choice. Do you have sodium benzoate available? I just keep the pH to 4.7-4.9 and use 0.4% sodium benzoate.
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Your packaging needs to be airtight to prevent the EO from evaporating.
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Seems unlikely to me. That is quite a low usage level. You can easily test your idea by replacing it with sodium benzoate which is commonly used in soft drinks and will not discolour your product over time. Actually one of my MBA students is responsible for a major brand of sports drink over here, so I am well aware of the typical formula. And why is sodium chloride in there without potassium chloride?
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Normally when I do this it is because I think the question is silly and there is no logical cosmetic chemistry. I am sure that WD-40 will give you a transparent, lubricated, shaving experience. What’s more, you won’t rust, either.
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yes. better packaging.
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with correct emulsion design there’s no need for stabilisers.
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0.1% Kathon CG / CMIT
THIS is the reason. Horrible poisonous preservative is giving you A.D. (Atopic Dermatitis). Yet another example of why this preservative should be banned. And it is why your hair is falling out. Nothing to do with sulphates. -
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Use plastic. Aluminium will react with soap.
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I covered the vessel with aluminium foil
Do NOT do this. NaOH + Al -> NaAlO2 +H2. BOOM! -
Yes.