i-Health—the company behind women’s over-the-counter brands AZO, Estroven, and Culturelle—has expanded its relationship with Dentsu, naming the agency its media and creative AOR as it looks to modernize its portfolio and reignite growth.
A division of Dutch multinational DSM-Firmenich, i-Health operates primarily in women’s health and gut health, with brands spanning intimate health, menopause relief, and probiotics.
Prior to the review, Dentsu handled media planning and buying for Culterelle. Dentsu’s appointment, awarded after a competitive pitch, covers i-Health’s full U.S. portfolio across strategy, media planning, and buying, creative, social, influencer, and measurement and technology. COMvergence estimates iHealth spent $2 million on ads in 2025.
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