Intestin ALL
Safe & Tested Ingredients
Dr. Formulated
Optimized For You
You May Also Need
Clinical Grade Products
Formulated using clinically studied ingredients and produced under strict quality standards. Each of our products undergoes thorough review to guarantee safety, purity, and potency.
Cassie Smith, MD Approved
Cassie Smith, MD is dual board-certified in endocrinology, diabetes, metabolism, and internal medicine. She’s a certified health care professional who understands the power of high quality vitamin and supplement formulas. She has approved every selected ingredient to support your long term wellness.
Why Our Supplements Work
Expertly Curated
Every product is hand-selected by Dr. Cassie Smith and our team of medical professionals, rooted in science, not trends.
Compassionate Care
We prioritize your comfort, well-being, and long-term success with supplements designed to support real healing, not just symptom relief.
Whole-Body Wellness
We take a functional, holistic approach—pairing high-quality supplements with lifestyle guidance, nutrition support, and stress management.
Frequently Asked Questions
How should I store my supplements?
Most supplements should be kept in a cool, dry place away from direct sunlight.
Are your supplements third-party tested?
Our manufacturer maintains a legacy of good manufacturing practices, instated long before cGMPs became compliance requirements. They stay up-to-date on industry research and testing methods, and fine-tune their manufacturing practices accordingly. They own and operate a cGMP, FDA-audited manufacturing and distribution facility here in the United States. The facility is equipped with high-performance HVAC and desiccant control that maintains ideal manufacturing conditions. Their staff are highly trained personnel who share a passion for efficacy. Because they control the entire production process—from formulation, raw material sourcing, and manufacturing, to laboratory testing of incoming materials and finished products, to bottling and labeling—they are free to be perfectionists. Their manufacturing facility is strictly controlled by rigorous standards that meet cGMPs, and it routinely passes FDA and third-party audits. Extensive testing on every lot they manufacture means you can trust the consistent purity, strength, identity and composition of each and every product formula.
Do you ship internationally?
Currently we only ship inside the United States.
What is your return policy?
We accept returns on unopened products within 30 days of purchase. Please see our full return policy here
When are orders shipped?
Orders are typically shipping out the next business day. Weather events or holidays can affect processing time. Customers will receive an email with tracking upon their order processing.
Still need help?
Please visit or contact page here