Cosgard Preservative 1 L

Keeping Water-Based Formulas Stable Across Large Production Runs

Cosgard Preservative in a 1 liter container is built for manufacturing lines and labs that need a reliable, tested ingredient in bulk without repeated small purchases. This ready-to-use blend based on dehydroacetic acid and benzyl alcohol belongs to the Preservatives and Antioxidants category and is used to protect water-containing formulas from yeast, mold and part of the bacterial microflora throughout the shelf life of a finished product.

The main demand for this preservative comes from the cosmetic industry: creams, emulsions, lotions, serums, shampoos, conditioners, shower gels and baby care products, especially formulations positioned as natural or organic where manufacturers want to avoid traditional parabens and formaldehyde-releasing agents. Beyond skin and hair care, Cosgard is also used in water-based color cosmetics, in household chemistry such as liquid soaps and dish detergents, and in select niches of the food and pharmaceutical sectors where its use is permitted under local regulations. It occasionally appears in soap making too, though that remains a minor use case rather than the primary source of demand.

Typical dosage ranges from 0.6 to 1 percent of total formula weight, with the exact figure depending on the acidity of the medium, water content and intended shelf life. The preservative performs best in a slightly acidic environment and loses efficacy above pH 7, so checking the final pH of an emulsion before adding it is a practical step. It should be introduced at the final stage of production, at temperatures not exceeding 40 degrees Celsius, to prevent degradation of active compounds under heat. Thorough mixing matters, since even distribution throughout the batch directly affects how well the preservative performs.

Because its spectrum leans toward fungal and yeast control, formulators dealing with higher bacterial contamination risk often pair it with complementary ingredients. A common partner in such combinations is Euxyl PE 9010 Preservative 10 g, which extends protection against gram-negative bacteria. In formulas built around plant extracts and natural oils, adding Thymol 10 g as a natural antimicrobial booster can further improve overall stability. Lines working with a wide range of emulsions at different pH levels also benefit from keeping Preservative Nipaguard CMB 10 ml on hand for formulas with a more neutral pH.

Store the preservative in a tightly closed container, in a dry place away from direct sunlight, at room temperature, avoiding temperature swings and moisture exposure until the moment of use. The 1 liter format suits conveyor-based manufacturing and helps secure stable raw material supply across several production cycles, reducing the risk of shortages and allowing precise purchase planning against output volume.

Bulk facial moisturizer batch

Distilled water 720 g

Jojoba oil 90 g

Plant-based emulsifier 55 g

Glycerin 35 g

Cosgard 8 g

Fragrance oil 4 g

Heat the water phase and the oil phase with emulsifier separately to 70 degrees Celsius, then slowly pour the oil phase into the water phase while mixing continuously until a uniform emulsion forms. Cool the mixture to 38-40 degrees Celsius, then add glycerin, Cosgard and fragrance oil, blending on low speed for another 10 minutes until the texture is fully stabilized and smooth.