IV Therapy in Castle Rock
Choose Onus IV & Longevity, the premier destination for IV therapy, hormones & peptides in Castle Rock. Our lounge is ready to help you make your next healthy choice in one of Colorado's most beautiful towns!
Location & Hours
Hours
Monday - Thursday: 10am-6pm
Friday: 10am-5pm
Saturday: 10am-4pm
Sunday: 10-3pm
Please note that appointments are available up to 45 minutes before closing time. While walk-ins are always welcome, we encourage you to book an appointment to ensure you can be seen.
Services Offered at Castle Rock
Choose from any of our IV Therapy and Longevity services at our Castle Rock location.

Onus IV Therapy + Longevity
Castle Rock Located in the heart of Castle Rock, our clinic is your go-to destination for premier longevity and wellness services. We offer a full range of treatments, including IV Therapy, IM Injections, Hormone Replacement Therapy, GLP-1s, Peptides, NAD+, and more. Whether you're looking to boost energy, recover faster, or optimize your health, we’re here to help you feel and perform at your best.
With convenient access and ample parking, our Castle Rock location provides a comfortable and inviting space for individuals and groups. For those who prefer a more private experience, we also offer dedicated treatment rooms for maximum relaxation.
Our team of ER-certified professionals is committed to delivering expert care, helping you achieve your health and longevity goals so you can live better, longer!

Hydrate and pursue health and wellness with confidence. Find one of our convenient locations for IV therapy, BHRT, and other health and wellness services. Our promise, and our duty, is to help others fight back against conditions that rob them of the joys of life. We endeavor to deliver on our promise of giving you “Your Best Days,” and have taken every precaution, every detail into consideration to deliver on that goal to the best of our ability.
Frequently Asked Questions
Onus prides itself on having an ER foundation, with all employees having 2+ years ER experience, working under ER protocols, overseen by an ER physician. Our ER nurses perform, monitor and ensure safety & compliance for all our clients at Onus!
Our Immunity drip is not only great for combating illness, but it’s also part of our New Client Offers! Try an Immunity IV, with Vitamin C, Zinc & Glutathione, for only $99 on your first visit.
Absolutely! Visit New Client Specials for offers on IV Drips, Shots & BHRT 😊
For weddings, bachelor / bachelorette parties & groups of 4 or more, we offer in-home service! Visit Mobile IV Therapy for more info and to get started.
Find Your Best Days
Find out more information about Onus IV and other wellness tips, tricks and information.