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How to make this shampoo completely transparent or opaque?
In a Shampoo with SLES/SLS/CAPB/APG, with 0.2% guar Hydroxypropyltrimonium Chloride and 1% Amodimethicone macro emulsion (0.3% silicone) the product is not completely transparent and not completely opaque and in middle. Is these a way by adding something or changing to make this product completely transparent or opaque without changing these two conditioner in shampoo?
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8 Replies
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I guess you could try to solubilize the Amodimethicone prior to adding it?
And add that in small increments and always wait until solution clears out.I believe Amodimethicones are more suited for conditioners - o/w emulsions.
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@Paprik it is already in solution of 30% Amodimethicone. Should i solubilize it in what?
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@Abdullah As you mentioned, your Amodimethicone is a macro emulsion, so unless you manage to create a micro emulsion on your own, you won’t be able to avoid that opaque look. You could switch to a Amodimethicone microemulsion though, or if you want to make the product completely opaque, you could add an opacifier.
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@ketchito how to create a micro emulsion by my own?
Is there any cold process opacifir?
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@Abdullah To create a microemulsion, it depends on many factors, like the type of oils you’re using, surfactants that you can have access too, specific concentrations, etc. You can find some useful info in a very good book “Microemulsions: properties and applications” (CRC Press).
Regarding opacifiers, the easiest ones are styrene/acrylates opacifiers (like Dow’s Opulyn). You also have the distearate based, but you’ll need a suspending agent to prevent sedimentation. You can work with both in cold process.
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@ketchito do we need suspending agent for styrene/acrylates?
And is the common emulsions (lotion and cream) macro emulsion or micro emulsion?
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@Abdullah Styrene/acrylates opacifiers don’t require suspending agents.
Common emulsion are macroemulsions (that’s why they are white; microemulsions are transparent).
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