P-Long Protocol · Blog

P-Long Results Timeline: What to Expect Month-by-Month

Based on the published clinical study and PMG’s clinical experience — a realistic timeline of what actually happens during the P-Long® Protocol, from the internal changes in the first weeks to peak results at six months.

12 Min Read · Reviewed by Dr. Gabal

“Understanding what’s happening — and what isn’t — during each phase is one of the best predictors of patient success. Men who know that early weeks are about cellular regeneration stay consistent through the phase where nothing looks like it’s happening.”

The P-Long® Protocol combines monthly PRP injections, daily traction therapy, daily vacuum device use, and a targeted nutritional supplement to stimulate natural tissue remodeling. Unlike surgical procedures where results appear immediately, P-Long produces gradual, sustained improvement as your body builds new tissue over months.

This means it takes time — and the biggest reason men don’t get optimal results isn’t the protocol itself. It’s losing faith during the early cellular regeneration phase, when internal changes are happening but visible results haven’t emerged yet.

Below is a realistic month-by-month breakdown of what happens during the P-Long Protocol at Prestige Medical Group, based on both the published clinical study and Dr. Gabal’s clinical experience treating patients.

Peer-Reviewed Clinical Evidence
The P-Long protocol has been studied and published in a peer-reviewed medical journal.
Brandeis J, Lu S, Runels C. (2023). Increasing Penile Length and Girth in Healthy Men Using a Novel Protocol: The P-Long Study. Andrology: Open Access. 12:293.

What the Published Study Showed at 6 Months

+0.805“
Mean Length Gain
p<0.001, N=29
+0.469“
Mean Girth Gain
p<0.001, N=29
100%
Reported Better
Erectile Function
Zero adverse events
Important Note

Individual results vary. The study represents healthy men aged 20-55 with normal baseline erectile function. Your experience may differ based on age, tissue health, adherence to the daily protocol, ED status, and individual biology.

The Protocol

Four Coordinated Components

P-Long isn’t a single treatment — it’s a carefully coordinated protocol combining four components that work together.

PRP Injections
Ultrasound-guided platelet-rich plasma injections deliver concentrated growth factors to targeted tissue — monthly for 6 months.
Traction Therapy
Daily use of a traction device (AndroDEEP or equivalent) provides the mechanical signal that directs tissue growth for length gains.
Vacuum Therapy
Daily use of a vacuum device (Kaplan pump or Vaxaid, based on preference) supports girth enhancement and blood flow.
AFFIRM Supplement
Nitric oxide-boosting nutritional supplement supports penile vascular smooth muscle function. Available in-office at PMG.
The Journey

Month-by-Month What to Expect

A realistic breakdown of the P-Long journey — including the critical early weeks when patience matters most.

Day
0

Consultation & First Treatment

Dr. Gabal reviews your goals, medical history, anatomy, and — if applicable — your SHIM score for erectile function assessment. If you’re a candidate, your first PRP injection is often performed the same day, under ultrasound guidance. You receive your traction device, vacuum device, and AFFIRM supplement to begin your daily home protocol.

You leave with: your complete home protocol setup
Wk
1-6

The Cellular Regeneration Phase

This is the most misunderstood — and most important — phase. Your body is doing significant work internally, but nothing is visible externally yet. PRP growth factors have activated cellular signaling. Traction is stimulating tissue remodeling. Cells are multiplying and producing new collagen. But this happens at the cellular level first.

Most patients do NOT see visible changes during this phase. This is normal, expected, and a sign the protocol is working correctly. Focus entirely on consistency with your daily traction and vacuum routines.

Milestone: 2nd PRP injection at week 4-6
Wk
6-16

Deep Tissue Remodeling

Cellular regeneration transitions into deeper tissue remodeling. New collagen is being laid down. New blood vessels are forming to support the tissue. Traction is now directing how the new tissue organizes. Some men may notice subtle changes toward the end of this phase — often described as a “fuller” feel — but visible measurable results are still typically ahead.

The temptation to quit is highest here. Stay the course. Continue monthly PRP appointments and daily home protocol.

Milestones: 3rd, 4th PRP injections
Mo
4

First Visible Results

This is when most patients begin seeing visible, measurable results. Progress photos taken now vs. day 0 typically show clear differences. Length gains become measurable. Many men also report noticeably improved erection quality and function — especially significant for men who started with ED.

If you’ve stayed consistent with the daily traction and vacuum protocols, this is your reward month.

Milestone: progress check-in with Dr. Gabal
Mo
5

Continued Gains

Additional PRP treatment continues to build on earlier progress. Tissue remodeling continues, and gains typically become more noticeable each week during this period.

Mo
6

Study Endpoint

This is the 6-month endpoint measured in the published Brandeis et al. 2023 study. In that study, participants averaged 0.805 inches of length gain, 0.469 inches of girth gain, and 100% reported improved erectile function, with zero adverse events reported.

At PMG, we take final measurements at this checkpoint and compare to your day-0 baseline. Your before/after photos typically tell a compelling story.

Milestone: final measurements & before/after comparison
Mo
6-12

Stabilization & Additional Growth

The published study noted that the growth curve suggests continued gains are possible with sustained protocol adherence. Some patients continue traction and periodic PRP for another 3-6 months to build additional results. Dr. Gabal will discuss the right path forward at your 6-month evaluation.

For Men With ED

P-Long + ED Enhancement

While the published study was conducted on healthy men without ED, at Prestige Medical Group we routinely treat men with erectile dysfunction using a customized P-Long approach. Based on your SHIM score at consultation, Dr. Gabal may recommend adding complementary treatments to your protocol:

  • ShockWave Therapy — often added for mild ED to improve blood flow
  • Apex RF — radiofrequency treatment for enhanced tissue quality
  • Exosome Therapy — advanced regenerative option for select candidates

The right combination is determined case-by-case at your consultation. This customized approach is one of the ways PMG’s P-Long program is uniquely positioned to help men with erectile dysfunction — not just enhancement candidates.

What Affects Your Personal Timeline

Not everyone follows the exact same trajectory. Factors that influence how quickly and how much you see results:

  • Consistency with daily traction and vacuum use — the #1 predictor of results
  • Age and tissue quality — younger men often remodel tissue faster
  • Baseline length — the study showed men with baseline ≤5.40″ saw 21% growth vs. 10.4% in men above 5.40″
  • Blood platelet quality — affects PRP potency
  • Overall health — nutrition, sleep, exercise, and blood flow all matter
  • ED status and treatment approach — whether ED add-ons are integrated
  • Individual biology — genetic factors influence connective tissue response

Setting Realistic Expectations

The P-Long Protocol is not a quick fix — it’s a physician-supervised regenerative treatment leveraging your body’s natural healing mechanisms. Men who commit fully to the protocol — especially through the first 6-week regeneration phase when nothing looks like it’s happening — typically achieve the best results.

Dr. Gabal and the team at Prestige Medical Group set individualized expectations at your consultation based on your specific goals, anatomy, health profile, and — if applicable — ED status.

Certified P-Long Provider

Not Just Any Provider

P-Long is not a DIY protocol or a technique any office can offer well. Prestige Medical Group is a certified P-Long provider with a direct relationship with Dr. Brandeis’s office — the developers of the protocol. This ensures you receive the authentic protocol as researched, published, and continuously refined by its originators.

Timing Questions

Frequently Asked Questions

When will I see my first P-Long results?
Most patients begin seeing visible results around month 4. The first 6 weeks are a cellular regeneration phase where important changes are happening internally but not yet visible externally. This is normal and expected — patience during this phase is one of the biggest predictors of success.
What did the published clinical study show?
The Brandeis et al. 2023 study (published in Andrology: Open Access) showed a mean length increase of 0.805 inches and mean girth increase of 0.469 inches at 6 months in healthy men aged 20-55. All participants reported improved erectile function. No adverse events were reported.
Why don’t I see results in the first 6 weeks?
Because tissue growth doesn’t work like adding a weight to your body. During the first 6 weeks, your body is completing cellular regeneration — activating cellular repair pathways, stimulating collagen production, laying groundwork for tissue remodeling. Visible changes at the surface come later, typically around month 4.
How long does the total protocol take?
The active protocol runs 6 months with monthly PRP injections. Daily traction and vacuum device use continues throughout. The 6-month mark is the study endpoint, but many patients continue for another 3-6 months to build additional results — the growth curve suggests continued gains are possible.
Are P-Long results permanent?
Results from the P-Long Protocol are considered long-lasting when the protocol is followed consistently — because gains come from actual tissue remodeling, not filler or implants. Individual results and durability may vary.
Does P-Long work for men with ED?
Yes — and at PMG we routinely treat men with erectile dysfunction using a customized P-Long approach. Based on your SHIM score at consultation, Dr. Gabal may recommend adding ShockWave Therapy (mild ED), Apex RF, or Exosome Therapy to enhance results for ED patients.
What if I don’t see results at month 4?
Timelines vary. If you haven’t seen changes by month 4, Dr. Gabal will assess your adherence, technique, and biology to identify what may need adjustment. Some men respond more slowly and see gains later in the protocol.

Ready to Start Your P-Long Journey?

Schedule a private consultation with Dr. Lamia Gabal to discuss whether the P-Long® Protocol is right for you. We’ll assess your candidacy — including SHIM score for ED patients — walk you through the process, set realistic expectations, and answer every question.

Reference

Brandeis J, Lu S, Runels C. (2023). Increasing Penile Length and Girth in Healthy Men Using a Novel Protocol: The P-Long Study. Andrology: Open Access. 12:293. DOI:10.35248/2167-0250.23.12.293

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