Mainya, O. N., & Tum, P. K. (2026). Quantitative Determination of Formaldehyde and Ammonium Thioglycolate (ATG) Allergen Levels as “Quality Markers” in Commercial Synthetic Braiding Hair Sold in Selected Cosmetic Beauty Shops in Kisii Town, Kenya. Journal of the Kenya National Commission for UNESCO, 6(2). https://doi.org/10.62049/jkncu.v6i2.555