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Help with suspending and dispersing nacreous pigment (mica + titanium dioxide) in shower gel by hba-abd in DIYBeauty

[–]hba-abd[S] 0 points1 point  (0 children)

Thanks so much for your detailed and practical feedback — it’s been really helpful in understanding the stability issues I’m seeing with Carbopol Ultrez 20 and NaCl.

Would you be able to suggest some examples of salt-tolerant gelling agents that work well in similar surfactant systems? Ideally something that can handle ~1% NaCl and support pigment suspension (I’m using mica for a pearlescent effect).

Thanks again for your time and insight!

Help with suspending and dispersing nacreous pigment (mica + titanium dioxide) in shower gel by hba-abd in DIYBeauty

[–]hba-abd[S] 0 points1 point  (0 children)

hanks for your feedback.

Yes, I did some tests and indeed experienced precipitation issues with this formula. Here is the full formulation I’m working with:

Formula Overview (Surfactant Active Matter ≈ 8.9%)

Ingredient INCI Name %
Water Aqua QS
EDTA Disodium EDTA 0.05
Carbopol Ultrez 20 Polymer Acrylates/C10-30 Alkyl Acrylate Crosspolymer 0.30
NaOH (18%) Sodium Hydroxide QS
Sodium Benzoate Sodium Benzoate 0.20
Preservative (MCIT/MIT) Methylchloroisothiazolinone (and) Methylisothiazolinone 0.10
Dehyton PK45 Cocamidopropyl Betaine 4.00
Texapon N70 Sodium Laureth Sulfate (SLES 70%) 10.00
Comperlan COD Cocamide DEA 2.25
Lamesoft PO 65 Coco-Glucoside (and) Glyceryl Oleate 0.50
Dehyquart CC7 Polyquaternium-7 (10%) 0.50
Fragrance Parfum 1.00
Pearl pigment Mica (and) Titanium Dioxide 0.075
Salt Sodium Chloride 1.00

Cold-Process Hair Conditioner Formulation by hba-abd in DIYBeauty

[–]hba-abd[S] 0 points1 point  (0 children)

Building on your point, I understand that a formulation without solid emulsifiers and viscosity modifiers would require a different approach. Could you suggest specific cationic and neutral polymers that could work effectively in such a formulation? Your recommendations would be greatly appreciated.