Frontier Pharmaceutical develops chlorine-dioxide personal-care and professional products through its proprietary DioxiCare system, which makes the difficult-to-handle gas available in shelf-stable formulas for uses such as oral, skin, nasal and veterinary care. Founded in 1993 by Howard Alliger, the company grew from his 1970s work adapting chlorine dioxide for practical small-scale and topical use, including a patented skin application in 1978. Howard’s daughter, Valerie Alliger-Bograd, joined in 1995 and continues to run the company, carrying forward the family’s focus on chlorine-dioxide technology.