Description
Ethylhexyl Palmitate is an ester of 2-ethylhexyl alcohol and palmitic acid. It is an alternate to silicone-based ingredients offering a 'dry-slip' feel. It helps adjust consistency in skin-care products.
Ethylhexyl palmitate is a mixture of a fatty alcohol and palmitic acid that functions in cosmetics products as an emollient (meaning it can soften and smooth skin), texture enhancer, and solvent in amounts from 2–50%, depending on the type of formula and desired aesthetics. It improves the look of skin, particularly dry skin, by helping reduce moisture loss from its upper layers. As a solvent, it helps solubilize other ingredients, helping active ingredients more readily penetrate skin. It helps sunscreen active ingredients such as avobenzone and ethylhexyl triazone disperse and remain evenly suspended in a formula.
Ethylhexyl palmitate has a feel like some silicones and silicone derivatives, making it an alternative to those ingredients in certain formulations. There’s no research indicating this ingredient, which may be synthetic, plant-, or animal-derived, is a problem for skin. Paula’s Choice Skincare uses either the synthetic or plant-derived form of this ingredient depending on the product.
https://www.paulaschoice.com/ingredient-dictionary/emollients/ethylhexyl-palmitate.html
Chemical Properties
Ethylhexyl palmitate is a colorless, odorless liquid derived from palm oil that’s used as a skin conditioning emollient and to give products their slip. It's similar in texture and sometimes used as an alternative to silicone.
Ethylhexyl palmitate is an ester of 2-ethylhexyl alcohol and palmitic acid. 2-ethylhexyl alcohol can be found in natural plant fragrances and also synthetically produced. Palmitic acid is the most common saturated fatty acid found in animals, plants and microorganisms, and is a major component of palm oil.
Ethylhexyl palmitate is a clear, colorless liquid at room temperature with a slightly fatty odor. It is insoluble in water but mildly dissolves in oils.
Uses
Ethylhexyl palmitate is an ingredient that is used to improve the texture, feel, and the scent of skincare and cosmetic products. It functions as an emollient, solvent, and fragrance fixative.
In cosmetics and skincare products, ethylhexyl palmitate functions as an emollient, solvent, and fragrance fixative.
Moisture
As an emollient, ethylhexyl palmitate helps to keep the skin moist and supple by reducing water loss from the top layers of the skin. Emollients also act as lubricants by reducing friction when anything rubs against the skin. Ethylhexyl palmitate is considered to be a non-occlusive emollient, which means it does not form a film on the surface of the skin. It is often used as an organic replacement to silicones in a cosmetic formulation because it provides a dry-slip, silky feel that is very similar to how a silicone would feel.
While all skin types can benefit from emollients like ethylhexyl palmitate, emollients are very beneficial for those who have dry, rough, and/or flaky skin. Emollients can treat these symptoms, leaving the skin looking and feeling soft and smooth. In addition, emollients may be suitable for those that suffer from conditions such as eczema, psoriasis, or other inflammatory skin conditions.
Solvent
Ethylhexyl palmitate functions as a solvent by helping other ingredients dissolve. Solvents can also increase the efficacy of active ingredients in a formulation by enhancing their absorption through the skin.
Appearance
Another function of ethylhexyl palmitate in cosmetics is as a pigment wetting agent. Wetting agents work by reducing the interfacial tension between two different types of ingredients in a cosmetic formulation. Wetting agents are useful in makeup as they improve the pigment or color distribution in the formulation. Think about even eyeshadow or foundation pigment.
Fragrance
Lastly, ethylhexyl palmitate functions as a fragrance fixative in cosmetics and skincare products. A fixative helps to equalize the volatile fragrance components making them last longer and remain more stable on the skin.
Safety
The safety of the Palmitates has been assessed by the Cosmetic Ingredient Revies (CIR) Expert Panel. The CIR Expert Panel evaluated the scientific data and concluded that Ethylhexyl Palmitate, Cetyl Palmitate and Isopropyl Palmitate were safe as cosmetic ingredients. In 2001, the CIR Expert Panel considered available new data on Ethylhexyl, Cetyl and Isopropyl Palmitate and reaffirmed the above conclusion.
https://cosmeticsinfo.org/ingredient/ethylhexyl-palmitate
Uses
Octyl Palmitate is used in the making of topical moisturizing and restructuring compositions.
Flammability and Explosibility
Non flammable
Safety Profile
Low toxicity by ingestion and skincontact. A skin irritant. When heated to decomposition itemits acrid smoke and irritating fumes.
Synthesis
1. Preparation of nano solid superacid catalyst SO2/CoFeO: Co-precipitation to form a precursor, impregnation with ammonium sulfate, and calcination.
2. Catalytic synthesis: Palmitic acid, isooctanol, toluene, and catalyst are mixed and reacted under reflux at 140-160C. The product is obtained after neutralization, washing, and distillation under reduced pressure.
