SY-PHP Preservative

Features and Benefits:

• Broad-spectrum bactericide
• Easy to use, soluble in glycol, ethanol, and oily substances, slightly soluble in water
• Preservative free of formaldehyde-releasing agents
• Very low irritation, suitable for use in infant skincare products
• Effective preservative even in the presence of natural organic ingredients such as proteins
• Recommended usage level is 0.25%–1.0% for safe use. Shampoos, liquid soaps, and creams are recommended at 0.3%–0.7%. For more difficult-to-preserve products or nonionic surfactant emulsions, the effective dosage should reach 1.0%
• Excellent environmental profile: rapidly degrades, does not accumulate in organisms, and does not persist under normal environmental conditions

Usage Recommendations      

• Recommended for use in rinse-off and leave-on personal care formulations at a concentration of 0.25–1.0%, with an applicable pH range of 4–8.
•     During production, SY-PHP can be added to the aqueous or oil phase. Heating (up to 60°C) can enhance its solubility in water. Alternatively, it can be dissolved in a suitable solvent such as propylene glycol before being added to water, but the final concentration must be confirmed to be below its solubility limit in water.
•     For shampoos, liquid soaps, and cream products, the recommended addition level is 0.3%–0.7%. For more difficult-to-preserve products and nonionic surfactant emulsions, the effective dosage should reach 1.0%.
• Due to the wide variation in ingredients and formulations of personal care products, which may affect the efficacy of preservatives, we strongly recommend verifying the efficacy and stability of SY-PHP before production.