Adebayo, G.B.Okoro, H.K.Oluyide, A.A.2021-04-202021-04-2020151596-7026https://uilspace.unilorin.edu.ng/handle/20.500.12484/4753Study on the effects of different concentrations of (10ppm, 20ppm and 50ppm) hydroquinone solutions has been carried out on Salvinia Cucullata growth. The plants were cultured in a control with no hydroquinone and at different concentrations of hydroquinone solutions in the laboratory for a period of 8days. The toxicity symptoms, total chlorophyll content and biomass were determined at 2,4,6 and 8days.The results revealed significant (P ≤ 0.05) effects on chlorophyll contents. Plants in the control having the highest chlorophyll content) and biomass as the concentration increases (from 11.45g which is control to 5.79g which is 50 ppm). The result has shown that cosmetic products that contain 2% hydroquinone (20,000ppm) are likely to produce residue of about 50ppm and hence can be detrimental to the ecosystem.enCosmetic residue,ecotoxicity, salvinia cucullattapigment, hydroquinoneArticle