Study at U.C. Berkeley Reaffirms Efficacy of Human Pheromone Sciences, Inc.'s Patented Technology (Study Confirms that Androstadienone Improves Mood in Women and Increases Positive Feelings) SAN JOSE, Calif., Oct. 7 /PRNewswire-FirstCall/ -- Human Pheromone Sciences, Inc. (NASD: EROX) ("the Company") confirmed today that an independent study conducted by researchers at the University of California, Berkeley, and recently published in the scientific journal, Psychoneuroendocrinology, involved 4,16-androstadien-3-one (androstadienone), one of the primary compounds used in the Company's patented technology. The study, performed by members of the Helen Wills Neuroscience Institute and the Department of Psychology at the University, measured in 60 subjects the effects of just sniffing various concentrations of the compound on autonomic nervous system function and mood. Simply stated, higher concentrations of this compound increased positive mood and decreased negative mood in the women tested. Psychological and physiological evaluation methods were used to measure the effects on the women in the study. In commenting on this new research, a Company spokesperson indicated that this new data, issued by a prestigious group of independent scientists, once again validates the studies performed by the Company's scientists and other independent research projects performed at leading research centers around the world, including Stanford University, the University of Chicago and the Karolinska Institute in Sweden. Human Pheromone Sciences, Inc. is a technology-based company, whose proof-of concept products included prestige-priced fragrances and toiletries and environmental products sold under the REALM(R), innerREALM(R), EROX(R) and Natural Attraction(R) trademarks. These products contain synthesized human pheromones covered under U.S. and foreign patents. Scientific and consumer studies have shown that the Company's human pheromones positively impact on the moods, attitudes and emotions of wearers. Further information is available on line at http://www.naturalattraction.com/. The statements in this news release may contain forward-looking statements that involve risks and uncertainties that could cause results to differ from predicted results. Further information on factors that could affect the Company's results is detailed in the Company's annual report to shareholders on Form 10-KSB for the year ended December 31, 2003 AND Form 10-QSB for the six months ended June 30. 2004 as filed with the Securities and Exchange Commission. The Company undertakes no obligation to publicly release the result of any revisions to these forward-looking statements. DATASOURCE: Human Pheromone Sciences, Inc. CONTACT: William P. Horgan, Chairman, CEO of Human Pheromone Sciences, Inc., +1-408-938-3030 Web site: http://www.realmfragrances.com/

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