Bulking agents are solid, non-reactive, and chemically inert ingredients used to increase volume, and refine essential textural, stability and sensory characteristic a product without significantly altering its function and safety. They help improve the feel, application, and appearance of makeup and skincare formulations.
Also bulking agents are often added to dilute active or highly potent components, to facilitate manufacturing, or improve handling and usability of the end product.
Bulking agent can have other roles such as opacifying effect, oil absorbing, controlling viscosity, enhancing spreadability.
Bulking agent are used in creams, powders, and other solid or semi-solid cosmetics.
Bulking agents in cosmetics can be classified based on their composition and function.
common categories:
1. Mineral-Based Bulking Agents like talc
2. Synthetic Polymers Nylon-12
3. Natural Bulking Agents such as starches
4. Silicone-Based Bulking Agents
5. Inorganic Compounds like silica