Formulating Vitamin C 30% in Silicone: Preventing Settling and Stickiness

Question

I am looking for guidance on formulating a product similar to "Ordinary Vitamin C 30% in Silicone". I plan to use the following ingredients:

Dimethicone (Heavy, Low-Odor)
Cyclomethicone / Cyclopentasiloxane (to replace PolySilicone-11 and help lighten texture)
PEG-10 Dimethicone (Silisolve) 1% (to help emulsify various silicones)
Vitamin C Ultra-Fine 30% (must be Ultra-Fine type for this formula)

I need to adjust the proportions of Dimethicone and Cyclomethicone / Cyclopentasiloxane to achieve the following:

A. Sufficient viscosity to prevent the Vitamin C Ultra-Fine from settling.
B. A non-sticky texture when applied to the skin.

Please advise on how to achieve these properties.

MySkinRecipes Expert · Accepted Answer

Based on the provided information, a formulation similar to "Ordinary Vitamin C 30% in Silicone" typically uses: Vitamin C Ultra-Fine: 30% (Only the Ultra-Fine type is recommended for this formula type). PEG-10 Dimethicone (Silisolve): 1% (Acts as a silicone emulsifier). Dimethicone (Heavy, Low-Odor) and Cyclomethicone / Cyclopentasiloxane: The proportions of these silicones are adjusted to achieve the desired consistency (sufficiently viscous to prevent Vitamin C settling) and texture (non-sticky). Cyclomethicone helps to lighten the texture.

Formulating Vitamin C 30% in Silicone: Preventing Settling and Stickiness

คำถาม

คำตอบ

ผลิตภัณฑ์ที่เกี่ยวข้องที่กล่าวถึง

Vitamin C (L-ascorbic acid) (Ultra-Fine)

Cyclopentasiloxane (Low-Odor Cyclomethicone)

SiliSolve™ (PEG-10 Dimethicone, Odorless)

Dimethicone (Light/50, Low-Odor)

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