Centella Asiatica Extract

// Evidence: Cleansing ingredients remove sebum, dirt, cells, and cosmetics through surfactant action, emulsification, or solubilization. Surfactants reduce surface and interfacial tension, allowing water to wet oily surfaces. Micelle formation enables hydrophobic substances to be solubilized and rinsed away. Must balance efficacy with mildness to avoid stripping natural lipid barrier.

// Evidence: Skin conditioning ingredients enhance appearance, texture, and health of skin through various mechanisms. This broad category encompasses emollients, humectants, occlusives, and other agents that improve skin feel, appearance, and function. May work by moisturizing, smoothing, softening, or protecting skin. Effects include improved tactile properties, enhanced barrier function, and better overall skin condition.

// Evidence: Smoothing ingredients improve surface uniformity by filling irregularities, coating surfaces, or temporarily contracting tissues. Include silicones that fill microscopic surface gaps, optical diffusers that scatter light to minimize imperfections, and film-formers creating even coating. On hair, smoothing agents flatten cuticle scales reducing roughness. Mechanism involves physical filling of surface irregularities and light diffusion. Results in silky-smooth tactile sensation and improved visual appearance.

// Evidence: Soothing ingredients reduce discomfort, redness, and inflammation through anti-inflammatory mechanisms. Include allantoin (stimulates healing), bisabolol (anti-inflammatory), colloidal oatmeal (skin protectant), panthenol (hydrating, barrier repair), and botanical extracts (aloe, chamomile, calendula). Mechanisms involve inhibiting inflammatory mediators (prostaglandins, cytokines), reducing histamine release, strengthening barrier function, and providing cooling sensation. Essential for sensitive, reactive, or post-procedure skin.