Solésence (formerly Nanophase Technologies) is a contract development and manufacturing organization (CDMO) focused on skin health and beauty. The company develops and manufactures finished skin care, sun care, and color cosmetic products for beauty brands — called "brand partners" — who sell them to consumers under their own names. Solésence does not sell directly to consumers. The company's core technology is its proprietary Active Stress Defense platform, which enables mineral-based UV filters (zinc oxide and titanium dioxide) to be formulated into aesthetically appealing finished products — addressing the well-known problem that mineral sunscreens can appear white or chalky on skin. This allows brand partners to incorporate SPF protection into formats like tinted moisturizers, foundations, and lip oils that traditional mineral sunscreen formulations could not easily accommodate. Brand partners include Colorescience, Tatcha, and Credo, among more than 70 total. Consumer products account for roughly 88% of revenue. A secondary business involves selling nano-scale zinc oxide APIs to BASF under a long-term exclusive supply agreement, representing roughly 10-12% of revenue. Solésence's growth strategy centers on deepening existing brand partner relationships, adding new prestige beauty brand partners, and expanding internationally through regulatory approvals in Australia, Canada, and Europe. The company holds 11 U.S. patents and 91 issued foreign patents supporting its technology platform.