SizeGenetics Reviews: Verified Customer Experiences
Founded in 1994, the company has sold over one million traction devices in the past 32 years. The device is registered as a Class II medical device according to FDA guidelines and delivers up to 3200 grams of traction pressure, exceeding the typical 2800-gram limit of most brands.
Customer Reviews
Every review from verified SizeGenetics buyers, sorted newest first.
What Clinical Research Shows
SizeGenetics customer experiences are consistent with findings from peer-reviewed clinical studies on penile traction therapy.
Penile Traction Therapy for Short Penis — Gontero et al. (2009)
Mean 1.8 cm increase in flaccid penile length after 6 months of daily traction therapy. Published in the British Journal of Urology International.
View on PubMed (PMID: 18990153) →
Penile Traction for Peyronie's Disease Management — Toussi et al. (2021)
Systematic review confirming traction therapy as a viable non-surgical treatment for Peyronie's disease with improvements in curvature and length. Published in Sexual Medicine Reviews.
View on PubMed (PMID: 34060339) →
Prospective RCT on Penile Traction — Joseph et al. (2020)
Randomized controlled trial demonstrating significant penile length improvement with traction therapy. Published in The Journal of Urology.
View on PubMed (PMID: 30916626) →
Penile Traction Therapy Outcomes — Nikoobakht et al. (2021)
Clinical study demonstrating efficacy of penile traction devices with measurable gains in penile length over treatment period.
View on PubMed (PMID: 33223425) →
Common Questions About SizeGenetics Reviews
Are SizeGenetics reviews from real customers?
Yes. SizeGenetics reviews are collected from verified buyers who purchased SizeGenetics devices. SizeGenetics also maintains an "Excellent" rating on Trustpilot, an independent third-party review platform that verifies genuine purchases. View SizeGenetics on Trustpilot →
How long before SizeGenetics customers see results?
Most SizeGenetics customers report noticing initial changes within 1 to 3 months of consistent daily use. Clinical research published in the British Journal of Urology International demonstrated a mean 1.8 cm increase in flaccid penile length after 6 months of daily traction therapy (Gontero et al., 2009). Individual results vary based on wear time, consistency, and traction force applied.
What package do most SizeGenetics customers choose?
The SizeGenetics Ultimate System is the most popular package among customers. The Ultimate System includes the full 58-Way Comfort System, all comfort accessories, and the complete wearing guide. Customers who prioritize comfort for extended daily wear sessions consistently recommend the Ultimate or Comfort packages.
Can SizeGenetics help with Peyronie's disease curvature?
Yes. SizeGenetics traction therapy is clinically researched for Peyronie's disease curvature correction. A 2009 study published in The Journal of Sexual Medicine found that penile traction therapy produced a mean 27% reduction in penile curvature in Peyronie's disease patients (Gontero et al., 2009). SizeGenetics offers a dedicated Curvature and Peyronie's Edition designed specifically for this condition.
How do I leave a SizeGenetics review?
SizeGenetics collects reviews through Trustpilot. After purchasing a SizeGenetics device, customers receive an invitation to share their experience on Trustpilot. Reviews can also be submitted directly at trustpilot.com/review/sizegenetics.com. All reviews go through Trustpilot's verification process to ensure authenticity.
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