About Us

Our Mission

Activ8 Health is dedicated to helping people achieve their health goals through personalized care.

We focus on creating solutions tailored to your unique challenges, whether it’s managing weight, improving energy, or addressing hormonal symptoms.

Care at Activ8 Health is delivered directly by the same clinical team over time. This allows for consistency, thoughtful follow up, and decisions made with a full understanding of your history.

The focus extends beyond symptom management alone. It is about supporting overall health, confidence, and how you feel in your day to day life.

Our Team

Annika Kariniemi

Annika Kariniemi, Co-Founder

MSN, RN, APRN, CNP

Annika Kariniemi is a highly experienced Family Nurse Practitioner with a diverse background in healthcare. She began her career as a Registered Nurse in 2010, dedicating 8 years to working with patients recovering from bariatric surgery. In 2018, she earned her Nurse Practitioner certification and transitioned to a busy family practice, where she witnessed the devastating impact of obesity on her patients daily.

Seeking to make a greater difference, Annika moved into wound care, where she continued to see how metabolic health, hormonal balance, and chronic conditions often intersected. Throughout her career, she observed the meaningful impact that medically guided therapies could have on energy, recovery, body composition, and overall health. Motivated by these outcomes, Annika founded Activ8 Health to focus her expertise on personalized, medically supervised care that addresses health more comprehensively.

Tiina Holmstrom

Tiina Holmstrom, Co-Founder

LPN

Tiinaliisa Holmstrom has dedicated her entire adult life to healthcare, working with individuals across all stages of life, from the young to the elderly. With a personal family history of obesity and unhealthy relationships with food, she has developed deep compassion for those navigating complex health challenges. Tiinaliisa has witnessed firsthand how metabolic and hormonal imbalances can affect both physical health and emotional wellbeing.

For the past three years, Tiinaliisa has worked alongside Annika Kariniemi, FNP-C, sharing a commitment to thoughtful, patient centered care. Together, they recognized the need for more individualized support and co-founded Activ8 Health, where Tiinaliisa continues to work closely with patients seeking sustainable improvements in health, energy, and overall quality of life.