-
Incorporating vegetable oil into a shampoo
Hi all. I’m looking for a simple method for dispersing or solubilizing a vegetable oil into a traditional surfactant (sulfate/sultaine/amide) system. I cannot use a rheology modifier.
-
4 Replies
-
Why vegetable oil?
-
If you need to use vegetable oil for marketing reasons you have to add PEG-40 Hydrogenated Castor oil or tween - 20 (approximate percentage 0.8%) to make a clear emulsion with the oil and do not use more than 0.15% of the oil. Since you don’t use thickeners or reology modifiers increase the amide percentage to around 4-5% if the sultaine/sulfate mix is at around 15-18%.
I wouldn’t use vegetable oil at all. Instead if you need emolliency use PEG-7 or PEG-6 which are readily soluble and light. -
Here’s a formula from Innospec that includes 10% Canola oil. It is for a body wash but you might be able to get some ideas from this.
David
Sulfate-free Body Wash
Posted: February 15, 2012 10:05 AM CSTApplication: Bath/Shower
This body wash (AC125) is a mild, sulfate-free facial cleanser featuring sodium lauroyl methyl isethionate and sodium methyl cocoyl taurate to product a dense, creamy lather upon application. The guar hydroxypropyltrimonium chloride imparts a soft, elegant feel to the skin and also helps improve foam quality. The guar gum and the cocamide MEA thicken this formulation and help stabilize the foam. The C12-15 alkyl benzoate acts as a mild solubilizing agent to gently remove soils from the skin as well as to provide conditioning
Request a Sample
Phase A
Water (aqua) QS to 100% 0.0%
Phase B
Sodium Chloride 4.0%
Phase C
Guar Hydroxypropyltrimonium Chloride ( Activsoft C-17 , Innospec) 0.2%
Phase D
Disodium Cocoamphodiacetate 7.5%
Phase E
Sodium Methyl Cocoyl Taurate ( Pureact WS Conc. , Innospec) 7.5%
Phase F
Cyamopsis Tetragonoloba (Guar) Gum ( Activsoft S , Innospec) 0.5%
Glycerin 1.0%
Phase G
Sodium Lauroyl Methyl Isethionate ( Iselux LQ-CLR , Innospec) 30.0%
Phase H
Cocamide MEA ( Aminol CM Flakes , Innospec) 3.5%
Phase I
Cocamidopropyl Betaine 10.0%
Phase J
Canola Oil 10.0%
C12-15 Alkyl Benzoate ( Finsolv TN , Innospec) 2.0%
Phase K
Preservatives QS 0.0%
Dyes QS 0.0%
Fragrance (parfum) QS 0.0%
Phase L
Citric Acid QS 0.0%
Formula ProcedureDissolve B in A. With smooth mechanical agitation, slowly blend C into AB. Mix until completely dispersed and uniform. Slowly blend D into system. Mix until uniform. Warm system to 40-45ºC with smooth mechanical agitation. Slowly blend E into heated system and mix until completely dissolved. In a separate mixing vessel, combine F. Mix into a soft slurry that is completely uniform. Slowly blend F into batch and mix until uniform. Slowly blend G into system. Mix until uniform. Slowly blend H into system. Mix until uniform. Remove heat. Slowly blend I into system. Mix until uniform. In a separate mixing vessel, combine J with mixing. Add J into batch with smooth agitation. Add compatible K to batch. 11 Adjust pH of system to 5.0-5.6 with L solution (50% aq.) as required. The system should thicken noticeably with the pH adjustment. Mix for at least 30 min to reach final consistency.
-
The vegetable oil is, in fact, for marketing purposes. Thanks for the tips, manstra. Unfortunately, the Innospec formulation uses guar gum, which I need to avoid.
Log in to reply.