Preservatives for Hydrogel Mask with Natural Extracts

For a hydrogel mask formulation containing natural extracts, it is important to select a preservative that is water-soluble, offers broad-spectrum protection against bacteria, yeast, and mold, and is compatible with natural ingredients, potentially requiring consideration for pH and temperature sensitivity.

Here are some suitable options:

• Coco-Preserve™: A natural origin preservative derived from coconut extract. It is water-soluble, provides broad-spectrum coverage, and works effectively in a wide pH range of 4-8. Avoid heat above 50°C during formulation.
• NaturePreserve™ Ultra: A natural origin preservative combining Gluconolactone and Sodium Benzoate. It is water-soluble, broad-spectrum, and heat tolerant, effective in a pH range of 3-6. Note that it is acidic and may lower the formula's pH. Avoid using with L-Ascorbic Acid (Vitamin C).
• PaeoniaPreserve™: A natural preservative extracted from Paeonia root. It is water-soluble and effective against infection. It can be used alone or combined with other preservatives. Avoid heat above 60°C.
• Probio-Protect™: A pro-biotic derived preservative (Lactobacillus Ferment) that is water-soluble and offers broad-spectrum protection. It is often used in "preservative-free" formulations and also provides moisturizing benefits. Avoid heat during mixing.
• Global Guard™ 221: A natural origin, water-soluble, broad-spectrum preservative effective in a pH range of 2-7. Avoid heat above 45°C.
• Preserve-BSB™: A water-soluble, broad-spectrum preservative effective up to pH 5.5. It utilizes synthetic versions of naturally occurring substances and is suitable for natural personal care products within its pH range. Avoid heat above 80°C.
• Mild Preserved™ COS: A broad-spectrum, water-soluble preservative effective in a wide pH range of 2-8. While not natural origin, it is a highly effective option. Avoid heat above 45°C.

When incorporating natural extracts, it is crucial to perform a challenge test on your final formulation to ensure the chosen preservative system is effective against potential microbial contamination introduced by the extracts and provides adequate long-term protection for the product.