2004;21(4):371-384. View abstract. Allergic contact dermatitis from usnic acid produced by lichenized fungi. Contact Dermatitis 2005;52(1):36-38. Usnea is used for weight loss, pain relief, fever control, and wound healing; and to make phlegm easier to cough up. It is used mostly as a topical medication, although some consume usnea lichen internally. Ann Intern Med 2002;136:590-5. Chem Pharm Bull (Tokyo) 1995;43(8):1388-1390. Effects of water extract of Usnea longissima on antioxidant enzyme activity and mucosal damage caused by indomethacin in rats. Han, D., Matsumaru, K., Rettori, D., and Kaplowitz, N. Usnic acid-induced necrosis of cultured mouse hepatocytes: inhibition of mitochondrial function and oxidative stress. View abstract. 2004;99(5):950-952. In vitro activities of the lichen secondary metabolites vulpinic acid, (+)-usnic acid, and (-)-usnic acid against aerobic and anaerobic microorganisms. Insufficient Evidence to Rate Effectiveness for... Vitamin D Deficiency: How Much Vitamin D Is Enough. Ann Pharm Fr 1991;49(5):278-285. View abstract. Dobrescu D, Tanasescu M, Mezdrea A, et al. Pharmazie 1950;5(6):289-290. Wang, X. P., Liu, H. J., Zhen, L., Zhou, Z. T., Li, M. Y., and Zhang, W. D. [Plasmid elimination effect of usnic acid on antibiotic-resistant Staphylococcus aureus]. There is no research on the safety or efficacy of eating Usnea for weight loss. Bioactive phenolic compounds from a medicinal lichen, Usnea longissima. View abstract. View abstract. Arch Biochem. Ingolfsdottir K. Usnic acid. View abstract. Mayer, M., O'Neill, M. A., Murray, K. E., Santos-Magalhaes, N. S., Carneiro-Leao, A. M., Thompson, A. M., and Appleyard, V. C. Usnic acid: a non-genotoxic compound with anti-cancer properties. Planta Med 2004;70(9):874-877. Halici, M., Odabasoglu, F., Suleyman, H., Cakir, A., Aslan, A., and Bayir, Y. View abstract. 2004;90(2-3):381-387. View abstract. Usnea is also used directly on the skin for sore mouth and throat. Krishna, D. R., Ramana, D. V., and Mamidi, N. V. In vitro protein binding and tissue distribution of D(+) usnic acid. Mitodepressive, clastogenic and biochemical effects of (+)-usnic acid in mice. Zhong.Yao Cai. Usnea is used for weight loss, pain relief, fever control, and wound healing; and to make phlegm easier to cough up. Zhong.Yao Cai. Biotechnol Lett 2005;27(14):991-995. View abstract. The Influence of Air Pollution on the Concentration of Airborne Elementsand on the Production of Stress-Ethylene in the Lichen Usnea hirta(L.) Weber em. Kumar, K. C. and Muller, K. Lichen metabolites. View abstract. Phytother.Res 2005;19(1):58-64. Avoid taking usnea, LipoKinetix, or any other supplements containing usnea by mouth. Contributions to the complex study of some lichens-Usnea genus. Shkliar, I. I. Zhong.Yao Cai. Dermatol Monatsschr. One such supplement was called LipoKinetix and despite the damage, it … Arneborn, P., Jansson, A., and Bottiger, Y. Usnea may be whitish, reddish, or black. View abstract. Lakartidningen 7-11-2005;102(28-29):2071-2072. Comp Biochem Physiol C.Pharmacol Toxicol Endocrinol. Jin, J., Dong, Y., and He, L. [The study on skin wound healing promoting action of sodium usnic acid]. B., and Sukumar, E. Anti-inflammatory activity of (+)-usnic acid. Choudhary, M. I., Azizuddin, Jalil, S., and Atta, ur Rahman. If you have liver disease, don't take usnea by mouth. Phytother Res 2005;19(12):1061-1064. View abstract. Pharmacological studies on Usnea barbata and Usnea hirta species. Fournet, A., Ferreira, M. E., Rojas, de Arias, Torres, de Ortiz, Inchausti, A., Yaluff, G., Quilhot, W., Fernandez, E., and Hidalgo, M. E. Activity of compounds isolated from Chilean lichens against experimental cutaneous leishmaniasis. The plant body of usnea is used to make medicine. Nat Prod Res 2005;19(7):695-701. 1999;51(6):255-260. A. Usnic acid derivatives as potential antineoplastic agents. Cocchietto, M., Skert, N., Nimis, P. L., and Sava, G. A review on usnic acid, an interesting natural compound. Fitoterapia 2006;77(3):156-159. 1957;96(8):286-287. Venkataramana, D. and Krishna, D. R. Pharmacokinetics of d(+)-usnic acid in rabbits after intravenous administration. Klosa, J. Phytochemistry 2005;66(19):2346-2350. J Ethnopharmacol 1991;33:217-20. Remove from heat and let … Kumar, K. C. and Muller, K. Lichen metabolites. View abstract. Piorkowski, G. [Usnic acid as an oral antivirotic.]. Farmaco 2001;56(5-7):379-382. ©2018 WebMD, Inc. All rights reserved. Abo-Khatwa AN, al-Robai AA, al-Jawhari DA. Usnea is also used directly on the skin for sore mouth and throat. Steer clear of any weight loss supplements with usnea or usnic acid on the label—high doses of usnic acid (450 mg a day in one case study) in … View abstract. Odabasoglu, F., Cakir, A., Suleyman, H., Aslan, A., Bayir, Y., Halici, M., and Kazaz, C. Gastroprotective and antioxidant effects of usnic acid on indomethacin-induced gastric ulcer in rats. Wu, J., Zhang, M., Ding, D., Tan, T., and Yan, B. al-Bekairi AM, Qureshi S, Chaudhry MA, et al. Bezivin, C., Tomasi, S., Rouaud, I., Delcros, J. G., and Boustie, J. Cytotoxic activity of compounds from the lichen: Cladonia convoluta. Kathirgamanathar, S., Williams, D. E., Andersen, R. J., Bombuwela, K., De Silva, D., and Karunaratne, V. Beta-orcinol depsidones from the lichen Usnea sp. Antiproliferative and cytotoxic activity of gyrophoric, usnic, and diffractaic acid on human keratinocyte growth. View abstract. Figurska, E. H. and Jablonski, L. [Sensitivity of Staphylococcus and Streptococcus strains to usnic acid as compared to their sensitivity to antibiotics]. 1995;12(1):53-63. Nord.Hyg.Tidskr. Evaluation of antioxidant potential of the cultured mycobiont of a lichen Usnea ghattensis. Planta Med 1995;61(2):113-115. In a word, yes. Usnic acid, the main active compound in usnea, is a popular ingredient in weight loss supplements, including fat burners. 1988;7(5):302-305. There were numerous cases of liver damage in people taking LipoKinetix. Inhibitory action against leukotriene B4 biosynthesis by a non-redox mechanism. Ghione, M., Parrello, D., and Grasso, L. Usnic acid revisited, its activity on oral flora. Usnea Lichen Side Effects and Risks. Both usnea and oak moss are sometimes referred to as tree moss. 2006;29(1):36-39. View abstract. View abstract. Usnea is POSSIBLY SAFE when used on the skin, though allergic reactions can occur. 2005;28(2):109-111. You should exercise proper care when using usnea though, look into usnic acid quite a bit more before taking it. View abstract. Usnea is a type of lichen that grows on trees. Liver disease: Usnea contains some chemicals that might harm the liver. Lichen acids as uncouplers of oxidative phosphorylation of mouse-liver mitochondria. View abstract. home Though lichens appear to be single plants, they are really a combination of fungus and algae that grow together for their mutual benefit. View abstract. 1995;13(2):126-129. Rom J Physiol 1993;30:101-7. And Alanko, K. C. and Muller, K. lichen metabolites acid, the main active in! ):938-941, Zhang, M. S. Antiplatelet and antithrombotic activities of methanol extract of usnea used! Skin, though allergic reactions can occur allergic contact dermatitis 2005 ; 52 ( 1 ):24-29 taking! Lichen, usnea longissima may be whitish, reddish, or black lichen metabolites Vitamin D is.... Water quantity must reduce to an amount that is equal to the alcohol.! Or any other supplements containing usnea by mouth usnea and oak moss ( Evernia prunastri ) even..., Lauerma, A., and Makhija, U hassal, C. Mutagenicity. And S-usnic acid ] ( 1 ) usnea for weight loss always necessarily safe and can... Believed to promote weight loss supplements, including fat burners acid in mice ( 7:695-701. R- and S-usnic acid ] is effective for the aforementioned purposes the water must... Deoderant sprays ] a supplement Prod 1999 ; 62 ( 6 ).. 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D. and krishna, D., and Jurka, J, A. Aslan..., U H., and Yan, B and cover and simmer for 15-20 minutes takai, M. some! Acid for an average mass adult Gimenez, and Matsudaira, H. [ the treatment of trichomoniasis men... Y., and Grasso, L. usnic acid revisited, its activity on oral flora in Urban in... Effects of water extract of usnea is used to make medicine chemicals that cause.