Alternatives for Reservoir-Tech in Cream Formulation

Based on the information about Reservoir-Tech and other available ingredients, "Sugar film" is not a direct substitute for Reservoir-Tech.

Reservoir-Tech works by forming a film on the skin that helps to retain active ingredients and release them gradually. This mechanism is particularly useful for reducing irritation and extending the effectiveness of certain water-soluble active ingredients like AHAs and some whitening agents.

"Sugar film," based on the product search results, appears to refer to ingredients like Sucrose Cream Maker, which is an emulsifier used to create cream textures, not a film-forming agent for controlled release of actives. Other "film" products found are typically for makeup to improve longevity and are not designed for gradual release of skincare actives.

If you are looking for an alternative to help carry active ingredients into the skin, there are other options depending on whether your active ingredients are water-soluble or oil-soluble.

• For oil-soluble active ingredients that are not on the list of ingredients tested with Reservoir-Tech, Phospholipids (Hydrogenated Lecithin) are recommended as an alternative carrier.
• Other ingredients that function as penetration enhancers (though with a different mechanism than Reservoir-Tech's gradual release film) include Laurocapram (Water Soluble) for water-soluble actives, Laurocapram (Oil Soluble) for oil-soluble actives, 1,2-Hexanediol, and Ethoxydiglycol. These ingredients help facilitate the absorption of active substances into the skin.

To choose the best alternative, consider the solubility of the active ingredients in your moisturizing cream and the desired effect (general penetration enhancement versus gradual release).