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Hair conditioner
Hi,
I’m actually having stability problem with my hair conditioner. Product separating into 2 phases. Could you please help. Formulation is as follows:
water 83.32%
Hydroxyethyl cellulose 0.95%
Citric Acid 0.03%
Quaternium 87 3.5%
Glycerin 2%
Cetyl Alcohol 2.2%
Stearyl Alcohol 1.5%
Isopropyl Palmitate 4.5%
D-Panthenol 75W 0.5%
Soium Benzoate and Potassium Sorbate 1%
Perfume 0.5%
Thank You
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7 Replies
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Hi, it looks like you’re missing an emulsifier here. Your fatty alcohols can support an emulsion but they won’t cut it on their own. A pretty common one in conditioners is Glyceryl Stearate SE.
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Gms se alone will not lead to stable emulsion.
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True, though it is a start.
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Already tried with Glyceryl Stearate. No improvement.
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Cetyl and Stearyl Alcohol are great stabilizers, but they are not dedicated emulsifiers. For a conditioner, you will likely want to add a cationic emulsifier, such as Behentrimonium Chloride, Behentrimonium Methosulfate, and/or Stearamidopropyl Dimethylamine, at around 1-2% (active material).
I would also recommend reducing your Isopropyl Palmitate to ~3% or less, as you want to avoid weighing the hair down. You should also consider adding a chelating agent, like Disodium EDTA, at around 0.1%, to better support your preservative system.
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Thank you Fedaro for information. I’ve a Quaternized Guar Flour, (3-chloro-2 hydroxypropyl trimethyl ammonium
chloride available. Can I use it as a stabilizer?
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Even though Quaternium-87 would do the job also as an emulsifier, the cationic amine is sterically hindered. Can you switch to Behentrimonium chloride or methosulfate? Also, don’t use more than 2-2.5%. Also, HEC doesn’t help stabilize much since it doesn’t have mich surface activity. Could you replace it by <b style=”font-family: inherit; font-size: inherit; color: var(-bb-body-text-color);”>Hydroxypropyl Starch Phosphate?
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