STRENGTH IN EVERY SIP

dóttir is built on Icelandic marine collagen, clean caffeine, and essential nutrients - crafted to fuel both performance and recovery. More than just energy, it's a daily ritual of resilience: strength you can depend on in training, competition, and in life.

Clean ingredients scientifically proven to help.

Icelandic Marine Collagen

Sustainably sourced from wild-caught North Atlantic fish, our collagen supports firm skin, strong hair and nails, joint resilience, and full-body structural strength from within.

Vitamin C & Glycine

Vitamin C and Glycine (amino acid) are essential cofactors that activate and enhance collagen synthesis. They support tissue repair, smooth skin, and help your body truly absorb and utilize collagen.

Active B-Complex

Methylated B vitamins, biotin, and nicotinamide riboside to fuel cellular metabolism, restore energy, and support recovery where your body needs it most.

Natural Caffeine

Our caffeinated drinks contain 105 mg per can derived from green tea with a smooth, steady rise in energy and focus. Clear, and clean without the wired crash.

Natural Fruit Flavors

Our flavor profiles are crafted specifically for dóttir — light, refined, and modern. Never sugary, artificial, or overpowering.

Hydration With Sea Salt

Unrefined, trace-mineral sea salt supports fluid balance and muscle performance, helping your system stay hydrated, stable, and strong.

why dóttir

For women in Iceland, “dóttir” (“daughter” in English) is added to their father’s first name to mean “daughter of.” For example, if a man named Jón has a daughter named Anna, her full name would be Anna Jónsdóttir, meaning “Anna, daughter of Jón.” This unique tradition reflects a person’s immediate parentage rather than a fixed family surname. It honors where you come from and highlights a culture built on individuality, strength,identity, and heritage.

But “dóttir” is more than a naming tradition, it’s a testament to the strength of Icelandic women. Despite being a small nation, Iceland produces some of the world’s most resilient, determined, and high-performing athletes. Growing up in a landscape shaped by harsh weather, volcanic terrain, and long winters, Icelandic women learn early what it means not just to endure, but to rise. That spirit lives in Anníe Mist Þórisdóttir and Katrín Davíðsdóttir, two of Iceland’s most iconic athletes, who each earned the title of Fittest Woman on Earth in back-to-back years. Their stories embody the heart of our brand: women shaped by their environment, fueled by resilience, and commitment to lifting others.

At dóttir, we believe that our wellness drinks fuel strength and recovery today, while the dóttir Resilience Fund invests in the strength of tomorrow. The product builds resilience in the body; the mission builds resilience in the community. This is our why — to craft the cleanest, most intentional wellness drinks possible while creating lasting impact for generations to come.

Meet Our Fomulator

Jennifer Milks, PhD, MBA

Jennifer holds a PhD in Biomedical Sciences and an MBA with a focus on Human Performance Optimization, shaped by specialized research in nutritional genomics and the biochemical pathways that drive nutrient absorption and utilization.

She applies this expertise to engineer formulations built on purity, potency, and synergistic action within the body — designed to perform at the cellular level. This philosophy forms the foundation of every dóttir formulation. Each detail reflects her commitment to creating products that are research-driven, thoughtfully crafted, and built on real pathways rather than trends.

“Because when science honors biology, performance becomes inevitable."

Supporting Women in Strength & Sport

The dóttir Women’s Resilience Fund

Every purchase helps power the next generation of strong, resilient women. Through our dóttir Resilience Fund, we financially support female athletes, coaches, and youth leaders pursuing elite training, certification, or competition opportunities.