Formulating

Silicon

Posted by Anonymous on July 25, 2017 at 8:30 pm

Hi everybody
I am trying to do a cream and I incorporate 6% of a mixture of Cyclomethicone & Dimethicone & Phenyl trimethicone but I noticed that after one day my formulation was not stable and I could see some silicone in the top of my cream
My formula is below, do you know if my formulation is missing some emulsifier ? Do you know how can make my formulation more stable ?
Thank you very much

INCI	%
Water	69,2
Glycerin	2,00
Polyglyceryl-6 Distearate	2,00
polyglyceryl-10 Oleate	2,00
Glyceryl Stearate	4,00
Stearyl Alcohol	3,00
Sclerocarya birrea Seed oil	2,00
Niacinamide	0,50
Water & Pentylene Glycol & Rhodiola rosea Root Extract	0,30
Caprylic/Capric Triglyceride	1,00
Cyclomethicone & Dimethicone & Phenyl Trimethicone	6,00
Tapioca Starch and water	6,00
Parfum	0,50
Benzyl Alcohol & Salicylic Acid & Glycerin & Sorbic Acid	1,50

belassi replied 7 years, 4 months ago 1 Member · 1 Reply

silicones

1 Reply

belassi

Member
July 25, 2017 at 9:30 pm

Silicones are notoriously difficult, you will just have to play around with it. You could begin by trying a quick fix, EG:
try replacing the glyceryl stearate with Dow Corning ES 5300 formulation aid - begin at say 4% and try reducing the C/D/P cones from 6% to 4% at the same time. Adjust.