Formulating a Lightweight Lotion Base

Asked by: hiphop5142 On: November 04, 2013 Product Type: Cosmetics

Question

I am looking to create a lightweight lotion base similar to the texture of Nivea lotion. Based on the ingredients commonly found in such lotions, what are the key components and their approximate starting percentages to achieve a lightweight, non-greasy, smooth texture? Specifically, how can I combine ingredients like Aqua, Glycerin, Paraffinum Liquidum, Dimethicone, and alternatives to potentially comedogenic ingredients like Isopropyl Palmitate (such as Cyclomethicone or Isododecane) into a stable emulsion? What is the role of the emulsifier and thickener system in achieving the desired texture and stability, and what is a suggested starting percentage range for this system?

Answer

Based on the staff's advice and the ingredients of the Nivea lotion you mentioned, the key components to create a similar lightweight base texture are:

  • Aqua (Water): The main solvent.
  • Glycerin: A humectant that helps draw moisture into the skin.
  • Paraffinum Liquidum (Mineral Oil): An emollient that provides a lightweight, non-greasy feel and slip.
  • Dimethicone: A silicone that contributes to a smooth, silky feel and reduces tackiness.
  • Cyclomethicone or Isododecane: These are suggested alternatives to Isopropyl Palmitate (which the staff mentioned can be comedogenic). They are lightweight, fast-spreading emollients that provide a dry, non-oily feel.

To combine these oil and water-based ingredients into a stable lotion texture, you will also need an appropriate emulsifier and thickener system. The specific type and amount of emulsifier and thickener will significantly impact the final texture and stability of your base.

Here is a suggested starting point for the proportions of these ingredients in your base. Please note that these are approximate percentages, and you may need to adjust them based on the specific ingredients you use and the desired final texture:

  • Aqua (Water): 75-80%
  • Glycerin: 3-5%
  • Paraffinum Liquidum (Mineral Oil): 5-8%
  • Dimethicone (low viscosity): 2-4%
  • Cyclomethicone or Isododecane: 5-8%
  • Appropriate Emulsifier and Thickener System: 4-7% (The exact percentage will depend on the specific emulsifier/thickener used)

Creating a stable emulsion requires careful selection and use of the emulsifier system. Experimentation with the proportions of the oil phase (Paraffinum Liquidum, Dimethicone, Cyclomethicone/Isododecane) and the emulsifier/thickener system will be necessary to achieve the exact lightweight and comfortable texture you desire.

Tags

Cosmetic Formulation Emulsification Light Texture Lotion Texture Modification