Meet the Team
Led by experienced medical professionals dedicated to transforming midlife wellness through science and compassion.
Medical Expertise Meets Compassionate Care
Our founders are practicing physicians and healthcare professionals who saw firsthand the struggles of midlife patients. We created Pure Peptide Collective to offer a better solution — one rooted in medical science and delivered with genuine care.
Dr. Jesse Pierce
Bsc, ND
Dr. Jesse Pierce, ND, B.Sc. is a licensed Naturopathic Doctor who graduated from the Canadian College of Naturopathic Medicine in 2007 and has been in practice in Ottawa since 2008. Dr. Jesse Pierce has a busy practice with special interest in treating complex chronic illness. She has a professional interest in untangling difficult cases by addressing mold/mycotoxins, chronic infections, an overall high toxic load, and mental/emotional blockages that prevent the body from healing.
When she is not seeing patients, attending conferences, or preparing for speaking engagements, she is using on an adventure with her family - skiing, paddling, biking or hiking.
Dr. Marie Matheson
Bsc, ND
Dr. Marie Matheson is a Naturopathic Doctor and co-founder of BioHeal Ottawa, a multidisciplinary health clinic specializing in complex chronic illnesses. She is a community builder, creator, and facilitator of LymeBright Collective, a Lyme health education program, and the online course Tick Bite Ready.
A member of the International Lyme and Associated Diseases Society (ILADS), she completed the ILADs Physicians Training Program with the late Charles Ray Jones, MD. In addition, she serves on the Advisory Board for The Forum for Integrative Medicine (TFIM). Dr. Matheson is a featured author of a chapter within Connie Strasheim’s groundbreaking book, New Paradigms in Lyme Disease Treatment.
Carrie Whittley
MScN, NP
Carrie Whittley is a Nurse Practitioner with nearly 25 years of experience in Ottawa. Initially focused on primary care, her expertise now spans trauma-based mental health, integrative oncology, and perimenopause. Carrie believes in personalized care, often repurposing medications and offering comprehensive, individualized treatment to achieve the best results for her clients. She emphasizes client goals, tailoring her approach to meet their unique needs through testing, counseling, or collaboration.
Her recent interest in peptides stems from seeing many patients struggle with traditional treatments. She believes a more refined program using lower doses of peptides can enhance health outcomes and help clients reach their goals more effectively.
Why Medical Oversight Matters
Expert medical guidance transforms your wellness journey from risky to reliable
Safety First
GLP-1 peptides are powerful medications that require professional guidance. Our physicians ensure your safety through careful monitoring and personalized protocols.
Personalized Approach
Every person's health journey is unique. Our team creates customized protocols based on your individual health profile, goals, and medical history.
Ongoing Support
We're with you throughout your journey. Regular check-ins, adjustments, and support ensure you achieve sustainable results safely.
Evidence-Based Care
Our protocols are grounded in the latest clinical research. We stay current with medical literature to provide you with the most effective, science-backed approach.
Ready to Meet Our Team?
Book a complimentary discovery call to learn more about our program and see if we're the right fit for your wellness journey.