Capryloyl salicylic acid, an ester derivative of salicylic acid, has emerged as a star ingredient in modern skincare for its unique balance of efficacy and gentleness. With a modified chemical structure (C₁₅H₂₀O₄), this compound offers enhanced skin penetration and reduced irritation compared to traditional salicylic acid, making it ideal for sensitive or acne-prone skin. Synthesized by esterifying salicylic acid with caprylic acid, it combines the keratolytic properties of salicylic acid with improved lipid solubility, enabling deeper delivery into the skin barrier.