Comparison of Isododecane and ISO-Lite Fast

Both Isododecane and ISO-Lite Fast are lightweight emollients commonly used in cosmetics to provide a non-greasy feel and quick drying time.

1. Evaporation: Both evaporate quickly from the skin. ISO-Lite Fast is specifically described as having quick evaporation and is often used as a substitute for alcohol in applications like perfume sprays due to its fast evaporation without irritation. Isododecane is also described as quickly evaporating and ultra-lightweight. Both are effective for achieving a dry-touch feel.

2. Use in Cream (Non-greasy, Fast-drying): Both are excellent choices for making creams feel less greasy and dry faster. They help reduce the heavy feel often associated with oils. Isododecane is highlighted for use in oil-free formulas requiring extra lightness and preventing stickiness. ISO-Lite Fast also provides a non-sticky, light feel. You can choose either based on desired feel and cost, but Isododecane is specifically termed "ultra-lightweight".

3. Miscibility with Water: Neither Isododecane nor ISO-Lite Fast are miscible with water. They are oil-soluble ingredients and would require an emulsifier to be incorporated into a water-based cream or serum.

4. Use on Acne-Prone Skin: Both ingredients are described as not clogging pores, which makes them suitable for use on acne-prone skin.

5. Choice for Serum/Cream: For a serum or cream where a very light, fast-absorbing, non-greasy finish is desired, both are good options. Isododecane is often preferred when an "ultra-lightweight" feel is paramount.

6. Choice for Sunscreen: Both can be beneficial in sunscreen formulations. They can help improve the feel of the sunscreen, making it less heavy or greasy. Isododecane is also noted for providing water-repellent properties and helping to disperse pigments, which are useful in sunscreens. ISO-Lite Fast's quick evaporation can also contribute to a lighter feel. Both are suitable, and the choice may depend on the specific requirements of the sunscreen formula (e.g., level of water resistance needed, pigment dispersion needs).

In summary, both Isododecane and ISO-Lite Fast are volatile, lightweight emollients that provide a non-greasy, fast-drying feel and are suitable for acne-prone skin. They are not miscible with water. Your choice between them for serums, creams, or sunscreens may depend on the specific desired texture, evaporation speed preference, and cost considerations.