this potent retinaldehyde serum contains 0.05% retinaldehyde, the high-iq retinoid for sensitive skin, and first-time retinoid users. formulated with hydroxysome microencapsulation and allosteris, a retinaldehyde amplifier, skin experiences powerful, yet gentle, results in skin. enhanced with bakuchiol and soothing botanicals, this formula is the perfect entry point into retinoid use while avoiding sensitivity and downtime typically associated with retinol. redness is relieved, lines are softened, discoloration is brightened, and blemishes are reduced. for all skin types, including sensitive.