Dispersions in the context of cosmetics refer to a mixture where fine ground particles are distributed uniformly throughout a liquid or another solid in which they are not soluble. This process ensures consistent color and texture in the final product. Achieving a successful dispersion requires determining the right combination of components for each formulation, which is essential to attain optimum color strength and stability. Sensient Beauty, known for its expertise in color and formulation technology, utilizes advanced dispersion techniques to enhance the performance, appearance, and longevity of various beauty products, including foundations, lipsticks, and eyeshadows.
Why use dispersions?
- Easy-to-use, ready-to-use pigments that eliminate the need for milling, making the formulation process simpler and quicker.
- Dispersions ensure brighter colors and complete color strength development with batch-to-batch consistency, allowing for high pigment load in fluid formulations.
- Cost-effective, saving time and labor while requiring less energy and facilitating easier scaling up.
Benefits of using dispersion
- Good dispersion will exhibit vibrant, uniform color throughout, free from streaks or clumps.
- Texture will be smooth and consistent, enhancing the product’s aesthetic appeal and application experience.
- Glide effortlessly onto the skin, providing even coverage and a flawless finish.
- Lightweight and silky, without any graininess or uneven patches.
- Pigments are fully developed, resulting in intense color payoff and long-lasting wear.
- Superior sensory experience and professional-grade results.
Oil or Water?
There are two broad categories of dispersions from Sensient — Oil dispersions which include Covascreen, Covanol and Covalight; as well as water dispersions which include Covasop, Covarine WS, Covarine WN, Covasorb and Natpure Screen TWG.
Oil dispersions involve dispersing fine particles in an oil medium. They are typically used in oil-based products such as certain types of foundations, lipsticks, and sunscreens. Oil dispersions tend to provide a richer, more emollient texture, which can be particularly beneficial for dry skin. They often offer better stability for oil-soluble pigments and active ingredients. Additionally, oil dispersions can enhance the product’s spreadability and adherence to the skin, providing a smooth, even application with a lasting finish.
Water dispersions involve dispersing fine particles in a water-based medium. These are commonly used in products like water-based foundations, lotions, gels, and personal care products such as toothpaste, liquid soaps, and shampoos. Water dispersions tend to be lighter and more refreshing, making them suitable for oily or acne-prone skin and hair types. They generally dry faster and feel less greasy compared to oil dispersions. Water dispersions are easier to wash off and can be more comfortable in hot and humid climates. They provide a lighter, more breathable finish while maintaining good pigment distribution and color intensity.
Covarine WS and WN Dispersions: What’s The Difference?
Covarine WS dispersions involve synthetic pigments, known for their superior chemical purity, in a water/glycerin mixture.
- High pigment load and ensure batch-to-batch consistency with intense and stable colors
- Fine and homogeneous dispersions prevent re-agglomeration and sedimentation
- Extended shelf life of up to two years
- Can be used in versatile applications such as toothpaste, soap, and makeup, thanks to the preservative system and water/glycerin base
- Improve processes by being ready-to-use, milling-free solutions, providing time savings
- Consistent quality from pale to intense colors with high stability
Covarine WN dispersions, on the other hand, use natural pigments in a water/glycerin base which offers similar benefits
- High pigment load and color intensity
- For formulations prioritizing natural ingredients, ideal for products marketed with a natural or clean beauty focus.
- Ready-to-use, milling-free solution for the water phase of formulations.
- Immediate and easy adjustability of shades with simple stirring, facilitating faster industrial up-scaling.
- Excellent performance in oil-in-water (O/W) emulsions, aqueous gels, and soaps.
- Optimized for compatibility with anionic thickeners and contain a high concentration of pigments.
- Excellent stability, making them a reliable choice for high-quality, natural-focused cosmetic products.
Interested in learning more about the use of dispersions in cosmetics and personal care products? Explore our formulations and contact us to discover how Covarine WS and Covarine WN dispersions can enhance your formulations.
