Even though they are safe and legal to use, preservatives are often targeted because sensitive skin may be more reactive to them. The cosmetic industry is constantly trying to innovate and develop new products without preservatives.

1. Sterile cosmetics

To avoid the use of preservatives in the formulation, two types of sterilization are used:

The ultra-high temperature process (UHT) involves heating formula to 155°C to sterilize it, followed by rapid cooling. Sterilizing the packaging and antibacterial caps and suitable packaging (tubes, vacuum pump) will help keep the formulation clean.

The first large-format (reusable) sterile cream is made possible by a unique patented packaging and formula from France. Airless and sterile packaging avoids any external contamination. The formulation remains sterile during product use. The entire process is carried out in a strictly regulated sterile environment to avoid bacteria and contamination.

2. Innovative products

Microbial contamination of cosmetic products is mainly due to the presence of moisture in the formulation. A French brand has innovated by using "gel" water in its formula. The product was developed in a sterile environment to ensure zero bacteria in the formulation or packaging. This highly innovative alternative to the use of preservatives in cosmetics ensures consumers get clean formulations even without the use of preservatives.

How to limit the development of microorganisms?

Choosing airless packaging or tubes rather than jars may help reduce the risk of microbial development. Contamination of the product is higher when consumers have direct access to the formulation.

No matter which preservative system you choose, if your formulation contains water, you should always perform a challenge test to demonstrate the effectiveness of the preservative system.

If you want to avoid water in makeup, you can always formulate a water-free product as a powder or lipstick. You must remember that whatever process you choose, it must be validated with sufficient data and testing when placing it on the EU market.