Collection: Sleep + Energy

We offer both standard and express shipping options. If you need your items sooner, simply choose express shipping at checkout. Plus, we’re excited to offer free standard shipping on orders over $150 within the USA, making it easier for you to get more of what you love. If you have any questions about shipping, don't hesitate to contact us.

If you're looking to return a supplement, you're in luck. We offer a 30-day return policy, which means from the day you receive your item, you have 30 days to initiate a return. Remember, the supplement must be unopened, and you'll need to provide the original order receipt or proof of purchase from our company.

To begin the return process, simply contact us at support@drstengler.com.

Once your return is approved, we'll give you all the necessary instructions on how and where to send your package. Please note, items returned without prior approval will not be accepted.

Many of our products are designed to complement one another, but we recommend reviewing labels and consulting your healthcare provider if you have questions.

Yes, our supplements undergo quality testing to help ensure purity, potency, and consistency.

Our products are developed under the guidance of Dr. Stengler using clinically researched ingredients.

Visit www.markstengler.com to learn more about Dr. Mark and Dr. Angela Stengler and to find contact details for scheduling an appointment.