Velsan® SC (INCI: Sorbitan Caprylate) is a 100% nature-based, multifunctional liquid booster and co-emulsifier. Derived from renewable feedstocks (Sorbitol and Caprylic Acid), this innovative monoester is designed to significantly enhance the efficacy of traditional and natural preservative systems. By acting as a “synergy engine,” it allows formulators to achieve robust microbial protection at lower active concentrations, making it a good ally for modern, skin-friendly preservation strategies.
Key Benefits and Performance
- Targeted Antifungal Potency: On its own, Sorbitan Caprylate demonstrates notable efficacy against yeasts, particularly Candida albicans. This specialized activity makes it an essential partner for systems that are primarily antibacterial.
- The “Pseudomonas” Gap Closer: One of its most critical technical advantages is its ability to boost protection against Pseudomonas aeruginosa—a common “weak spot” in many formulations. When combined with Phenoxyethanol or Benzyl Alcohol, it dramatically increases their lethal effect on this resilient Gram-negative bacterium.
- Sensory & Odour Optimization: At a 1:1 ratio with Phenoxyethanol, it significantly reduces the sharp, chemical odour of the preservative while simultaneously improving its overall antimicrobial performance.
- Hydrotropic & Co-Emulsifying Action: Beyond preservation, it functions as a hydrotrope, increasing the solubility of other ingredients in aqueous systems. As a co-emulsifier, it helps stabilize O/W emulsions and can improve the “whiteness” and texture of creams and lotions..
Formulation Guidelines
- Synergy Recommendation: While it has moderate antibacterial activity, it is not intended for use as a standalone preservative. It is designed to be paired with established preservatives to create a “hurdle” effect.
- Incorporation:
- Solubility: Dispersible in water; soluble in oils, alcohols, and glycols.
- Phase Addition: It is typically added to the oil phase in emulsions or pre-mixed with surfactants/solubilizers in aqueous systems.
Applications
- Skin Care: O/W emulsions, moisturizing lotions, and anti-ageing creams.
- Cleansing: Body washes, facial cleansers, and shampoos.
- Hygiene: Wet wipes and hand sanitizing gels.
