Packaging Requirements for Volatile Emollients

For products containing volatile emollients like Cyclopentasiloxane (Low-Odor Cyclomethicone), LipidSoft™ Cyclo, and LipidSoft™ D5, the choice of packaging is critical to maintaining the stability and performance of your formulation.

1. Packaging Requirements

Since these ingredients are designed to evaporate, they require airtight packaging.

• Pump Bottles: These are highly recommended. Airless pump bottles are the best choice because they minimize air exposure and prevent the volatile components from escaping every time the product is used.
• Jars: Using a standard wide-mouth jar is not recommended. Every time the jar is opened, the volatile emollients will evaporate into the air. Over time, this will cause the product to become thicker, stickier, or change its skin feel because the ratio of ingredients has shifted. If you must use a jar, it should have a very tight-sealing inner lid (liner) and a high-quality screw cap.

2. Additional Precautions

• Material Compatibility:
  • Glass: The most stable option and has no compatibility issues with these ingredients.
  • Plastics: Most common cosmetic plastics like PET, PP, and HDPE are generally compatible. However, avoid low-density plastics (like LDPE) if the formula contains a very high percentage of these emollients, as they may slowly permeate through the plastic or cause the bottle to "collapse" slightly over time as the contents evaporate.
• Heat and Sunlight: Volatile substances evaporate much faster when exposed to heat. Store the finished products in a cool place and avoid transparent packaging if the product will be displayed in direct sunlight, as the heat buildup can increase internal pressure or speed up evaporation if the seal is not perfect.
• Seal Integrity: Ensure that the gaskets or liners in your caps are compatible with oils and silicones to prevent leaking or "creeping" of the liquid through the threads of the bottle.

In summary, while you don't necessarily need "specialized" industrial packaging, you must prioritize airtightness and prefer pump systems over open jars to ensure the product remains consistent until the end of its shelf life.