Preservatives for Fresh Boiled Herbal Insect Repellent

For preserving fresh boiled herbal insect repellent, we recommend selecting a broad-spectrum preservative that is effective against bacteria, yeast, and mold, and is suitable for water-based formulations. Here are some suitable options from our range:

• PE 1090 Preservative: This is a highly effective, broad-spectrum preservative that is paraben-free and formaldehyde-free. It works in a wide pH range (3-12) and can withstand high temperatures (up to 120°C for 2 hours), making it very suitable for boiled herbal solutions. It is water-soluble.
• Zinc-Ben (Sodium Benzoate, Zinc Acetate Preservative): A water-soluble, broad-spectrum preservative effective in a pH range of 2-8. It is odorless and can be used in food and cosmetic applications, making it a good choice for a natural-based product. It should be mixed into the formula when the temperature is below 45°C.
• Coco-Preserve™ (Preservative from Coconut Extract): A natural, water-soluble, broad-spectrum preservative derived from coconut extract. It is effective against bacteria, yeast, and mold in formulas with a pH range of 4-8. To maintain its efficacy, avoid heat exceeding 50°C during mixing.
• Thyme Care™ (natural preservative): This natural preservative is extracted from Thyme and Bois De Rose, offering broad-spectrum protection against bacteria, yeast, and mold. It is effective in a wide pH range (2-10) and can withstand heat up to 80°C for up to 15 minutes. Please note it has a natural thyme scent, which might need to be considered for the final product aroma.
• PaeoniaPreserve™ (Natural Preservative): A natural preservative derived from Paeonia root extract. It is effective in controlling infection in cosmetic formulations and is water-soluble. It has a mild natural scent. To preserve its properties, avoid heat above 60°C during mixing.

When selecting a preservative, it is crucial to perform a challenge test on your specific herbal insect repellent formulation to ensure the chosen preservative is effective and suitable for your product's unique composition and pH.

You can find links to all mentioned products below this answer.