He was 38. Crossfit four days a week, sleep-tracked, owned a CGM. He'd already done a full panel through Function Health and was supplementing based on the results. He came in asking about the P-Shot not because anything was wrong, but because he'd read about it and wanted to know if it made sense to do it now, before things changed.

The man who came in the following week was 57. He'd been on tadalafil for two years. It worked, mostly, but he hated the planning, hated the headaches, and had started to notice it wasn't working as reliably as it once did. He'd heard about the P-Shot from a friend and wanted to know if it was too late — if there was still enough tissue health left for it to do anything.

Two men. Completely different situations. Same question, really: is this the right time?

The answer to both of them was yes. But the reason why matters, and it's worth explaining.

What the P-Shot actually does (and doesn't do)

The P-Shot, short for Priapus Shot, uses platelet-rich plasma drawn from your own blood and injected directly into penile tissue. The platelets carry growth factors — PDGF, VEGF, TGF-beta — that signal the body to repair and regenerate the tissue they're delivered to. In the penis, that means improved blood flow, better nerve sensitivity, and in some cases, measurable increases in firmness and responsiveness.

What it doesn't do is override severe vascular disease or replace testosterone that isn't there. It works with the tissue you have. Which is exactly why timing matters.

The evidence so far

The research is promising, though it's still developing. A 2021 double-blind, placebo-controlled trial published in the Journal of Sexual Medicine found that 69% of men who received PRP injections achieved a clinically meaningful improvement in erectile function at six months, compared to 27% in the placebo group. A 2025 meta-analysis in UroPrecision reviewed twelve controlled trials involving 991 men and found consistent improvements in IIEF scores among the PRP-treated groups versus controls.

Not every study shows the same results. A 2023 randomized trial found no statistically significant difference between PRP and placebo at six months. The International Society for Sexual Medicine notes that the evidence is promising but mixed, and that standardization of protocols is still needed. That's an honest read of where the science is.

What the consistent findings do show: PRP is safe, well-tolerated, and produces meaningful improvement in a significant subset of men, particularly those with mild-to-moderate vascular ED and men who are starting from a relatively healthy baseline.

The optimizer's case: why earlier is not too early

The 38-year-old who came in tracking his sleep and wearing a CGM wasn't being paranoid. He was being consistent.

He already maintains his cardiovascular health, his fitness, his nutrition. He gets his teeth cleaned twice a year not because his teeth hurt, but because he knows what happens when you don't. The P-Shot, for him, fits the same logic. Penile tissue health, like all vascular tissue, responds better to intervention when the baseline is strong. Growth factors delivered into healthy, well-perfused tissue have more to work with.

There's also a less-discussed benefit for men in this category: sensitivity. Many men who've had the procedure report improved sensation and more reliable responsiveness, not just firmness. For a man who's optimizing everything else, that's not a trivial outcome.

The NOVOscore assessment is the right starting point for men in this group. It maps where you actually are, not where you assume you are. A lot of men in their late 30s and early 40s who think everything is fine discover, through an objective assessment, that there are early indicators worth addressing now rather than later.

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The man noticing change: why later is not too late

The 57-year-old on tadalafil is not a lost cause. Not even close.

The concern men in his situation often have is that the tissue has already degraded past the point where regenerative therapy can do anything meaningful. That's rarely true. What matters is whether there's still functional vascular tissue to work with, and in most men with mild-to-moderate ED, there is.

The men who tend to respond best to PRP are those with vascular ED, which is the most common kind, where the issue is blood flow rather than nerve damage or hormonal deficiency. If tadalafil works but you don't like depending on it, that's actually a good sign. It means the mechanism is intact. The P-Shot works on the same mechanism, just from a different direction — it's trying to restore the tissue's ability to do what the pill was compensating for.

Men who've been on tadalafil or trimix for years sometimes worry they've missed the window. The more accurate framing is that they've been managing the symptom while the underlying tissue continued to age. The P-Shot is an attempt to address the tissue itself. Whether it's the right move depends on a full picture of where things actually stand, which is what the NOVOscore assessment is designed to provide.

Treatment and optimization are the same act

Here's the thing that doesn't get said enough: the distinction between "I'm treating a problem" and "I'm optimizing my health" is mostly a story men tell themselves about which category they're in.

The man who gets his cholesterol checked at 42 because his father had a heart attack at 58 — is he treating a problem or optimizing? Both. The man who starts resistance training at 45 because he wants to stay strong into his 70s — treatment or optimization? The question doesn't really have a clean answer, and it doesn't need one.

Every man already maintains what he values. His car gets oil changes. His investments get rebalanced. His teeth get cleaned. The system that most men treat as "fine until it breaks" is the one that, when it does break, they'd give almost anything to have addressed earlier.

The P-Shot sits at the intersection of those two groups because it works the same way regardless of which side of the line you're on. The growth factors don't know whether you're 38 and optimizing or 57 and treating. They respond to the tissue environment they're delivered into.

What to expect from the procedure

The P-Shot at The Novus Center is done in-office, typically in under an hour. A small amount of blood is drawn, processed to concentrate the platelets, and injected using a fine needle after a topical numbing agent is applied. Most men describe minimal discomfort. There's no downtime.

Results vary. Some men notice changes within a few weeks. Others see the most significant improvement at the three-to-six-month mark as the tissue responds to the growth factors. The 2021 Poulios trial found statistically significant improvements at one, three, and six months, with 69% of recipients achieving clinically meaningful improvement by the six-month mark.

The Novus Center also offers the Galaxy Shot, which combines PRP with exosome therapy for men looking for a more intensive regenerative protocol. Stephanie Wolff, P.A.-C has drawn patients from outside the country specifically for the exosome-enhanced version, which isn't widely available.

For men whose sexual health concerns go beyond the P-Shot, the NOVOWave shockwave therapy and men's health overview page are worth reviewing as well.

Frequently Asked Questions

How do I know if I'm a good candidate for the P-Shot?

The best candidates are men with mild-to-moderate vascular ED, men who want to maintain or improve sexual function proactively, and men who've had a partial response to PDE5 inhibitors like tadalafil. Men with severe vascular disease, significant hormonal deficiencies, or nerve-related ED may need additional or different interventions first. The NOVOscore assessment at The Novus Center is designed to map exactly where you stand before any recommendation is made.

Is the P-Shot FDA-approved?

PRP therapy is FDA-cleared as a process (the centrifuge equipment and collection kits are regulated), but the P-Shot as a specific indication for ED is not FDA-approved. It's an off-label application of an autologous therapy, meaning it uses your own blood. The International Society for Sexual Medicine describes it as a promising emerging treatment with a strong safety profile and ongoing research.

Can I still get the P-Shot if I'm currently taking tadalafil or trimix?

Yes. Many men who come to The Novus Center are currently using PDE5 inhibitors or intracavernosal injections. The P-Shot isn't a replacement for those in the short term — it's a regenerative intervention aimed at improving the underlying tissue over time. Some men are able to reduce or discontinue their medications after treatment. Others continue both. That conversation happens based on your individual response and goals.

How long do results last?

Most men who respond well to the P-Shot report improvements that persist for twelve to eighteen months. Some elect to repeat the procedure annually as part of a broader men's health maintenance protocol. The 2025 meta-analysis in UroPrecision noted that follow-up periods in most trials ran to six months, so longer-term data is still accumulating.

What's the difference between the P-Shot and the Galaxy Shot?

The P-Shot uses platelet-rich plasma alone. The Galaxy Shot combines PRP with exosome therapy, which delivers additional regenerative signaling molecules to the tissue. The Galaxy Shot is generally recommended for men seeking a more intensive protocol, men who've had a partial response to PRP alone, or men who want the most advanced option available. Stephanie Wolff, P.A.-C will walk through which is appropriate based on your assessment.

How do I get started?

The first step is the NOVOscore assessment, which gives both you and the provider a clear picture of where your sexual health actually stands. From there, a specific recommendation is made. You can reach The Novus Center at [email protected] or by calling 818-492-1401. The clinic is located at 11650 Riverside Dr, Studio City, CA 91602.

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