Several types of nanoparticles are commonly used in responsive skincare products:
1. Liposomes: Phospholipid-based vesicles that can encapsulate both hydrophilic and hydrophobic substances. 2. Nanoemulsions: Submicron-sized emulsions that enhance the solubility and bioavailability of active ingredients. 3. Solid Lipid Nanoparticles (SLNs): Particles made from solid lipids that provide controlled release of active ingredients. 4. Metal Oxide Nanoparticles: Such as titanium dioxide and zinc oxide, used in sunscreens for their UV-protective properties.
