Non-Surgical Penis Enlargement in Denver, CO

Experience male enhancement with a world-renowned, board-certified surgeon who brings 20 years of cosmetic surgical expertise and over 8,000 procedures to every Upsize treatment. Dr. James Harris combines his extensive training from the University of Colorado School of Medicine with exacting standards and meticulous attention to detail, ensuring exceptional precision, safety, and natural-looking results. At Upsize Denver, Dr. Harris delivers the same rigorous clinical excellence and patient-centered care that has made him an international leader in cosmetic surgery, helping Colorado men achieve enhanced confidence through advanced, non-surgical penis enlargement.

What is Upsize™

Upsize™ is a physician-performed medical procedure that increases penile girth and length using FDA-approved dermal fillers—the same trusted products used for years in facial aesthetics. Unlike pills, pumps, or other ineffective gimmicks, Upsize™ provides immediate, long-lasting enhancement through a minimally invasive treatment performed entirely in-office by specialist doctors. The procedure takes about 45 minutes, requires no surgery or implants, and involves little to no downtime—most men return to normal activities right away. If you’re seeking a safe, proven option for real penis enlargement, Upsize™ delivers consistent, natural-looking results.

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Key Differences of Upsize™

What Else Should You Know

Ideal Candidates:

  • Men 21+ seeking girth enhancement with realistic goals

  • In good general health (no active infections, allergies to HA, or bleeding disorders)

  • Seeking a discreet, natural-looking result

You may not be a candidate if:

  • Active penile/urinary infection, untreated STD

  • Severe body dysmorphia or unrealistic expectations

  • Known allergy to dermal fillers

Not sure? Our physicians will assess during your consultation.

  • Mild swelling, temporary soreness, rare chance of asymmetry or nodule formation

  • Not designed for major erect length gain

  • Rare side effects: allergic reaction, vascular occlusion (less than 0.1%, industry data)

  • All risks personally discussed before any procedure

  • Valenzuela, R. et al., Journal of Sexual Medicine, 2023

  • Bawa, R. et al., Aesthetic Surgery Journal, 2021

  • Maercks, R., UroToday Clinical Review, 2022

Disclaimers:

While hyaluronic acid filler is approved by the FDA it is used “off label” for penis girth enhancement by all physicians in the United States who perform penis enlargement procedures (including Upsize physicians).  There is no filler that is commercially available that has been approved by the FDA.

Results may vary.  While Upsize has an extensive safety record and a 98% satisfaction rate, different anatomy and physiology make it impossible to guarantee the same results in all individuals.  You will discuss with your physician individual expectations at your consultation.

Upsize physicians are independent practitioners and while they are trained by Upsize, they practice medicine individually. While Upsize does our best at vetting our doctors, it is the patients responsibility to know your doctor and vet them appropriately. 

Upsize™ Penis Filler Injections in Denver

Why Men Choose Upsize™ for Penis Enlargement in Denver

Upsize™ Proprietary Procedure

The proprietary Upsize™ method uses a standardized protocol across all locations, ensuring consistent, high-quality outcomes. Every procedure is performed exclusively by Dr. Harris, a board certified physician specially trained by Upsize™ founders in advanced microcannula techniques.

Key Benefit: “Whether you choose Denver, NYC, or in the US, you receive the exact same medical protocol and superior results at every Upsize™ location.”

20+ years of experience in plastic surgery

Advanced residency training at University of Colorado School of Medicine

Over 8000 cosmetic procedures performed

Medical Education: University of Colorado School of Medicine,
Expertise: Plastic Surgery
NPI: 1689998379
Dr. Harris brings two decades of board-certified medical expertise to penis enlargement for Colorado patients.
A graduate of Texas Tech University who earned his medical degree from University of Colorado, School of Medicine, Dr. Harris completed extensive medical training with an internship at St. Joseph’s Hospital in Colorado and residency at University of Colorado, School of Medicine. An international leader in cosmetic surgery, Dr. Harris has spent two decades performing specialized cosmetic surgery. He has brought exacting standards and a rigorous attention to detail to over 8,000 procedures. Combining a patient centered approach with fastidious clinical excellence, Colorado men seeking safe and proficient penis enlargement procedures will receive exceptional skill and quality of care from this world renowned surgeon.
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Upsize™ Penis Enlargement Denver

Your Upsize™ non-surgical penis enlargement in Denver is performed at our Greenwood Village location in the prestigious Denver Tech Center (DTC), conveniently situated at 5445 DTC Parkway, Suite 1015. We’re easily accessible from I-25 and I-225, just minutes from downtown Denver, Aurora, Littleton, Highlands Ranch, and Centennial, near popular landmarks like Park Meadows Mall and the Denver Technological Center light rail station. Ample on-site parking is available in our professional medical building, and our discreet, private environment ensures comfort for men seeking non-surgical penis enlargement treatments in Denver and throughout the Front Range of Colorado.

5445 DTC Parkway, Suite 1015, Greenwood Village, CO, 80111

What to Expect With Upsize

Before & After Results of Girth Enhancement Patients from the Denver Clinic

Most men see noticeable improvements in size, appearance, and sexual performance… often starting the same day. The added volume isn’t just visible… it enhances the way the penis looks and functions, both flaccid and erect, with results that feel as good as they look.
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Image ©Upsize LLC
Before 15ml
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After 15ml
Popular
Upsize™ XL
Premium cannula injected dermal filler

$5,990

  • Premium cannula injected dermal filler
  • $5,990 for 10ml HA dermal filler
  • Up to 1 inch or more of erect girth
  • Up to 3/4 inches flaccid length
Firm-X
100 U intracavernosal neuromodulator

$1890

  • 100 U intracavernosal neuromodulator
  • Improve erections
  • Decrease shrinkage
  • Up to 1cm length increase*

Current Denver Pricing

Upsize™ penis filler procedure in the Denver clinic starts at $3,990 (typical cost $5,990) – compared to surgical alternatives costing $15,000-25,000 with weeks of downtime. This pricing is specific to our Denver location and includes all consultations, the procedure, and lifetime follow-up support. Financing options are available to ensure the procedure can stay within your budget.

Reviews from Dr. Harris' Denver Patients

Choosing the right penis enlargement clinic is a big decision. Upsize™ has helped thousands of men across the U.S. achieve noticeable gains in girth, confidence, and sexual satisfaction… all without surgery.
Terrific experience from start to finish. Dr. Harris and his team and top notch and made me feel very comfortable in an otherwise stressful situation. Lawrence and Katie were so great
leading up to the procedure and helping me plan. Would highly recommend!
Delmar W.
Denver
I had a procedure done about a week ago with Dr. Harris and his team/staff which included Derrick, Claudia, Jas, Ale and Keila. They were all very professional and welcoming. 
They made the procedure fly by with how attentive they were and the painless procedure itself. I highly recommend this location for anyone who has been thinking about getting anything done.
Ralph S.
Denver
The entire team did a fantastic job! You can tell they are always striving for excellence. Joe communicated well, the OR staff was kind and caring, and Dr Harris exhibited great skills. Thank you team!
DR Tippets
Denver
Dr Harris and his team are world class. Best in the world. Done 2 surgeries and highly recommend!
Riad N.
Denver

Meet the Founders of Upsize™

Learn directly from the physicians who created the Upsize™ procedure in these candid, engaging interviews. Watch Dr. Joel Pash and the founding medical team discuss the real science behind penis enlargement with the honest, straightforward approach this topic deserves. These media appearances showcase both the medical expertise and approachable personality that make Upsize™ the trusted choice for men nationwide.

43:01

Interview with Jordan Harbinger

In this interview, Dr. Pash speaks with Jordan Harbinger (of The Jordan Harbinger Podcast) about the Upsize Procedure and general penile enlargement topics.
Interviews

44:24

Talking with the Creators of Upsize

In this video podcast, Dr. Pash and Dr. Friedlander speak with Mrs. Poindexter, an Onlyfans performer and host of the iRRational Mom’s podcast. Learn about Upsize and discuss penile enlargement.
Video Podcasts

41:21

The Joel Evan Show

In this interview, Dr. Joel Pash, co-founder of Upsize, discusses penis enlargement with Joel Evans.
Video Podcast

FAQs for Upsize Penis Enlargement - Denver, CO (Dr. James Harris)

Considering penis filler or girth enhancement? You’re not alone in having questions. Most men see noticeable improvements in both size and self-esteem starting the very same day, with 1–2+ inches girth gain and approximately 0.75 inch flaccid length gain that lasts 2+ years with proper maintenance. Our board-certified physicians have performed over 1,200 procedures with a 98% satisfaction rate, and they’re here to address your concerns about safety, results, cost, and what to expect.

The Upsize™ procedure is a non-surgical penis enlargement treatment that uses advanced hyaluronic acid dermal fillers to increase penile girth and enhance flaccid length. Performed by Dr. James Harris, a world-renowned, board-certified surgeon with over 20 years of cosmetic surgery experience and more than 8,000 cosmetic procedures completed, the treatment involves precise injection of medical-grade filler into the shaft of the penis using techniques refined through two decades of surgical excellence. Dr. Harris brings the same exacting standards and meticulous attention to detail to penis enlargement that has made him an international leader in cosmetic surgery. The procedure typically takes 30-45 minutes, is performed under local anesthesia at our Greenwood Village location in the Denver Tech Center, and provides immediate, natural-looking results with minimal downtime.

Most patients see an increase of 1-2 inches in girth (circumference) with the Upsize™ procedure, with some also noticing an increase in flaccid length. Results are visible immediately and typically last 24 months, depending on individual factors such as metabolism and lifestyle. The procedure can be repeated to maintain or enhance results. During your confidential consultation with Dr. Harris at our Denver location, he will discuss realistic expectations based on your individual anatomy and goals, utilizing his extensive surgical background and rigorous attention to anatomical detail to create a personalized treatment plan that ensures exceptional outcomes.

Yes, the Upsize™ procedure is extremely safe when performed by Dr. Harris, who brings 20 years of board-certified surgical expertise and a proven track record of over 8,000 cosmetic procedures to ensure the highest standards of patient safety and care. His extensive medical training, including his internship at St. Joseph’s Hospital and residency at the University of Colorado School of Medicine, combined with his fastidious clinical excellence and meticulous surgical precision, ensures optimal safety protocols. Hyaluronic acid is a naturally occurring substance in the body that has been used safely in medical procedures for decades. Common side effects are mild and temporary, including minor swelling, bruising, or tenderness at the injection sites, which typically resolve within a few days. Serious complications are extremely rare, particularly under Dr. Harris’s expert care and exacting standards.

The Upsize™ procedure requires minimal downtime, and most patients return to normal daily activities immediately after treatment. You should avoid sexual activity 7 days to allow for optimal healing. Dr. Harris’s extensive surgical experience and patient-centered approach ensures maximum comfort during and after the procedure. Some mild swelling or bruising may occur but typically resolves within a few days. Results are visible immediately, with final results apparent within 1-2 weeks once any minor swelling subsides. Dr. Harris provides comprehensive aftercare instructions and remains available to address any questions or concerns throughout your recovery, delivering the same exceptional quality of care that has made him a trusted name in cosmetic surgery.

Most healthy adult men are good candidates for the Upsize™ penis enlargement procedure. The treatment is ideal for men who want to increase their penile girth and enhance their confidence without surgery, risks, or extended downtime. During your private, confidential consultation with Dr. Harris at our Greenwood Village location in the Denver Tech Center, he will evaluate your health history, anatomy, and goals using his two decades of surgical expertise to determine if Upsize is right for you. The cost varies depending on the amount of filler needed to achieve your desired results. Dr. Harris will provide transparent pricing information and create a personalized treatment plan tailored to your individual needs, combining his patient-centered approach with the fastidious clinical excellence and world-class surgical precision that Colorado men deserve.

Still Have Questions About Penis Enlargement?

Ready to take the next step but need to speak with an expert? Our board-certified physicians are here to answer your specific questions about candidacy, results, and what to expect during your procedure. Call us or book a private, no-pressure consultation to get personalized answers and see if Upsize™ is right for you.

Book Your Free Phone Consultation

Is Upsize™ right for you? Contact us for your free penis enlargement consultation. Our board certified physicians are here to discuss your male enhancement goals and discuss how to move forward to the next step towards a safe and effective Upsize™ procedure.

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