Biologica launched today as the newest venture from Allbirds co-founder Joey Zwillinger, but the company’s origins sit with his wife and co-founder, Liz Zwillinger, whose years of navigating shifting hormonal symptoms exposed a gap in the women’s health market.
As a 43-year-old former family law attorney and mother of three, Liz spent more than a decade moving through pregnancy, postpartum and the early stages of perimenopause, feeling as though no single product reflected what her body was actually experiencing.
“I have always struggled with my hormonal health and how my hormones were impacting my mood — and how I was showing up for my family,” she told Athletech News. “I was mixing different pills and powders, listening to Instagram doctors, talking to friends, and it all felt completely disaggregated. I couldn’t find one solution that met me where I was in my hormonal stage.”
That frustration became the catalyst for Biologica, a new women’s health brand built around a long-overlooked premise: hormonal age, not chronological age, should determine a woman’s nutritional support.
The company debuted with three effervescent daily Essentials for the reproductive years, perimenopause and postmenopause, each formulated with clinically backed dosages, acute symptom support and foundational nutrients that shift with hormonal biology rather than general demographic categories.
Biologica also announced a $7 million seed round led by Addition with participation from Hawktail, Greycroft, True Beauty Ventures, Good Friends, Gabrielle Bernstein and Katherine Schwarzenegger Pratt.
A New Type of Women’s Health Supplement
Investors generally pointed to the brand’s focus on hormonal specificity as a meaningful departure from traditional supplement models, which often repurpose generic formulas for men and women alike.
After early conversations with friends revealed a common pattern: either no supplementation at all, or an overwhelming assortment of pills and powders that were difficult to sustain, the Zwillingers conducted a series of age-segmented focus groups to test whether Liz’s experience mirrored a broader reality. They found that women across life stages were overwhelmed by information, eager for simplicity and consistently dealing with symptoms that changed dramatically depending on their hormonal phase.
Those findings led Joey, who stepped back from leading sustainable footwear and apparel brand Allbirds in 2024, to oversee a full research initiative, including a 1,000-woman health study that mapped the prevalence and severity of symptoms across hormonal ages. Digestive discomfort, lethargy and nutrient deficiencies emerged as universal patterns, while mood, irritability, sleep disturbances, cognitive shifts and PMS-related complaints clustered tightly around specific stages of hormonal change.
“What we found was that hormonal age dictates women’s health outcomes much more than chronological age,” he told ATN. “Once we saw that clearly in the data, the product strategy became obvious.”
Inside the Biologica Formulation
From there, Biologica spent a year in R&D to engineer a single daily format capable of delivering both foundational nutrients and stage-specific clinical actives in effective dosages.
The result is an effervescent beverage designed to replace the equivalent of multiple pills. Each tin contains 30 sachets formulated with five grams of active ingredients, including electrolytes tailored for women, a targeted probiotic strain for digestion, iron encapsulated to avoid unwanted taste, vitamin D, B-complex vitamins and a rotating set of clinically validated botanicals.
For PMS and mood-related symptoms in the reproductive years, Biologica uses chasteberry extract and pomella pomegranate; for perimenopause, it incorporates L-theanine, GABA and Affron saffron to address irritability, brain fog and sleep disruptions; for postmenopause, it introduces hobamine to help counter oxidative stress alongside nutrients for bone, heart and cognitive health.
To validate the formulations further, the company created a medical advisory board of OB/GYNs, a breast-cancer surgeon and naturopathic doctors. A staff naturopathic doctor has spent more than a year refining ingredient interactions, while the brand’s first clinical study, focused on the perimenopause formulation, is underway.
Though deeply research-driven, Biologica was also designed for usability. Liz pushed for a format that felt elegant and visible rather than medicinal, leading to recyclable tins embossed with Greco-Roman reliefs intended to encourage daily use.
“There was a missing space for something elevated, science-backed and truly designed for women,” she said. “I didn’t want to choke down seven pills. I wanted something that supported my symptoms and my underlying health in one step.”
Biologica’s three Essentials are available at biologica.com for $70, or $59 through subscription.
