Solubility and Formulation of Activated Resorcinol in Oil-Free Gel
Question
Regarding the use of Activated Resorcinol, the product description mentions a warning about using it in "skin gel" (leave-on) and suggests dissolving it in the oil phase.
- What is the meaning of "skin gel" in this context?
Can I use Activated Resorcinol in an opaque gel formula that does not contain oil or LipidSoft, such as the following proposed formula, by simply dispersing it?
Proposed Formula for a Fast-Evaporating Whitening Gel for Oily Skin:
- Water 92.8%
- Dimethicone 1Secs 5% (replacing LipidSoft)
- Light Cream Maker 1%
- Pro Polymer or AnyGel 0.5% (to help stabilize the formula)
- Activated Resorcinol 1%
- Disodium EDTA 0.2%
Is this type of formula feasible?
Answer
Understanding Your Activated Resorcinol Gel Formula
You've asked about using Activated Resorcinol in an oil-free gel formula for oily skin, specifically replacing the oil phase with Dimethicone 1Secs and incorporating the Activated Resorcinol by simple dispersion.
First, regarding the term "skin gel" mentioned in the Activated Resorcinol description, it refers to a leave-on gel product applied to the skin, as opposed to a product that is washed off.
Now, let's look at your proposed formula and the solubility of Activated Resorcinol. Activated Resorcinol is soluble in oil. The recommended method for incorporating it is to dissolve it in the oil phase of your formulation.
Your proposed formula aims to create a gel base primarily from water, Dimethicone 1Secs, Light Cream Maker, and Pro Polymer or AnyGel, without a traditional oil phase like LipidSoft. While Dimethicone 1Secs is a useful ingredient for a fast-evaporating feel suitable for oily skin, and can be incorporated into a water base using a suitable binder like SiliSolve, Activated Resorcinol's solubility in oil means it cannot be simply dispersed as a powder in this type of oil-free water/silicone gel base. It will not dissolve properly and will likely lead to an unstable or ineffective product.
To successfully incorporate Activated Resorcinol into a gel-like formula, you would still need to dissolve it in a suitable oil or solvent phase first. This oil/solvent phase would then need to be properly emulsified into the water base using an appropriate emulsifier, even if the final texture is a light gel rather than a cream. Light Cream Maker can function as an emulsifier and can help incorporate silicone, but the Activated Resorcinol needs a solvent to be dissolved in before emulsification.
Therefore, your proposed method of simply dispersing Activated Resorcinol powder in an oil-free water/Dimethicone 1Secs gel base is not feasible based on the ingredient's solubility characteristics.
Related Products Mentioned
Light Cream Maker™
Disodium EDTA
Pro Polymer™ (Gel Maker)
AnyGel™