With over 35 years of expertise as a cosmetic scientist and an international career that spans multiple countries, Dr Theresa M. Callaghan (pen name Tess M. Calloway) is a seasoned authority in her field. Born and raised in Wales, she has navigated the high-stakes, image-obsessed, and profit-driven world of global beauty, publishing influential research, leading dynamic teams, and providing critical analysis on cosmetic claims. All while remaining grounded in the unwavering truth, regardless of shifting trends.
Through her conspiracy thrillers, Theresa delves into the hidden tensions, secrets, and personalities she’s encountered throughout her international career—unleashing her imagination with the freedom only fiction can offer. What if a revolutionary product was failing to deliver as promised? What if the world’s most influential beauty brand had buried a dangerous secret?
