BioTone manufactures and distributes massage oils, cremes, lotions, gels, and spa treatment products from a San Diego production facility on Old Cliffs Road in Allied Gardens, supplying practicing massage therapists and estheticians across the United States and internationally. Founder Jean Shea, a San Diego native and SDSU graduate, started the company in 1980 by formulating Chamomile Moisture Lotion in her Kensington home with a mixing pot, then expanded into massage-specific products when a nearby massage school asked her to develop formulations for student clinics. The Allied Gardens manufacturing facility produces the full product line in-house — massage oils, dual-purpose cremes, aromatherapy blends, body wraps, exfoliants, and facial treatment products — employing a staff of twenty-five across production, quality control, and distribution. Chiropractors and manual therapists, including practitioners at Family Connection Chiropractic in College Area, use BioTone's deep-tissue massage cremes and hypoallergenic lotions in clinical treatment settings where product consistency and ingredient transparency are non-negotiable. The EASE-Z line extends the company's formulation expertise into a diabetic dry-skin therapy product backed by a three-million-dollar annual promotional budget, broadening BioTone's reach beyond the massage-therapy channel into medical dermatology. Estheticians and spa operators, such as T L Spa Skin Studio in San Carlos, stock BioTone's facial treatment products and body-care lines for use in clinical skincare protocols that require clinical-grade formulations. The 92120 headquarters runs an EDU-Partner educational program with weekly Zoom sessions led by industry experts, training massage students and working practitioners on modality-specific product selection and application techniques. Shea continues to oversee all formulation development and manufacturing quality at the Allied Gardens plant, maintaining the same natural-ingredient focus that launched the company more than four decades ago.