Men in The Woodlands pick InjectCo for the P-Shot for three plain reasons. One nurse with a master's degree, Misty or Lindsey, handles the whole visit in a closed room. The $1,799 price is set before any blood is drawn. And the clinic is open seven days a week until 7 PM.

• The same nurse the whole time. Your consult, blood draw, PRP preparation and injections are done by one person, and she is the one you text with questions afterward.
• Discreet by design. We are in the Portofino Plaza office condominiums on Ed English Drive, a quiet office building rather than a busy storefront.
• One clear price. $1,799 a session covers the assessment, blood draw, numbing and PRP. No add-on fees appear at checkout.
• An honest first answer. If your history points to an unchecked heart, hormone or urology issue, we say so and tell you where to go. That protects your health and your money.
• Physician oversight. Every P-Shot follows InjectCo protocols under the medical direction of Dr. Josh Allen, D.O., Medical Director.
• Easy to reach. Minutes from Town Center, Market Street and Hughes Landing, with evening and weekend appointments.

Platelets release growth factors when they reach tissue. The idea behind the P-Shot is that a concentrated dose may help blood vessels and nerve tissue in the penis work better over the next few weeks. A handful of controlled trials have tested that idea. So far the results are mixed (see the research section below). At our Shenandoah clinic the P-Shot costs $1,799 a session, and the same nurse stays with you from the first question to the final injection.

The first appointment is a free, private consultation. Your nurse asks how long the change has lasted and whether it happens every time. She asks what you have tried, which medicines you take (blood thinners and nitrates matter) and what a good result would look like to you.

Changes in erections are common, and they can also be an early sign of heart disease, diabetes, high blood pressure or a hormone problem. The AUA erectile dysfunction guideline asks clinicians to look for those causes first, so that is where the plan begins. Then your goal is matched to what PRP was designed to do:

If two rows fit, the medical row comes first. If the P-Shot does fit, you hear the $1,799 price, what PRP might and might not change for you, whether a second session could ever make sense and how the visit runs, all before a single tube of blood is drawn.

The right fit is a generally healthy adult man with mild to moderate changes in erections or sensation. His usual medical causes have been checked, or will be. He accepts that the research is mixed and wants a non-surgical option alongside what his own doctor recommends.

Who should wait, or skip it

• Anyone with a genital sore, rash or infection right now.
• Men with a platelet or bleeding disorder, or certain blood cancers.
• Men on blood thinners, unless the prescriber agrees to a plan first.
• Men with new ED that no physician has looked at, especially with diabetes, high blood pressure or heart disease.
• Men whose real goal is more length or more girth.

Bring this to your consult

A list of every prescription and supplement (including ED tablets, nitrates and blood thinners), any recent lab work and a short note of what you have already tried. It saves time and keeps the advice accurate.

What some men notice: firmer or more dependable erections, or stronger sensation, building over the weeks after a session. Other men notice nothing. No test can tell you in advance which group you will fall into.

What it will not change: length, girth, a curve from Peyronie's disease, testosterone levels, libido, or the conditions that often sit behind ED, such as diabetes or vascular disease. Controlled studies do not show the P-Shot making the penis bigger, so we never say it does.

It is not a replacement for prescriptions. ED tablets are FDA approved for erectile dysfunction, and PRP is not. Keep taking any prescribed medicine unless the doctor who prescribed it tells you otherwise.

Size is its own conversation. If girth is the goal, that is a filler treatment with different risks and evidence, linked in the comparison below.

The P-Shot is never the first stop for a medical problem. We send you elsewhere first if your main issue is:

• ED that began suddenly, or ED with chest pain or breathlessness. Seek medical care now. Chest pain is an emergency.
• New ED together with diabetes, high blood pressure, high cholesterol or smoking. ED can be an early warning of blood-vessel disease, so your physician should see you first.
• A new bend, a lump you can feel or painful erections. These can point to Peyronie's disease, which a urologist treats.
• An erection lasting more than four hours. That is priapism. Go to an emergency room.
• Low libido, constant tiredness or no morning erections. Ask your doctor about a hormone and general health check.
• Blood in urine or semen, urinary trouble, sores or a recent injury. These need prompt medical attention.

Where ED tablets fit

Oral ED medicines are FDA approved and prescribed by a physician. The P-Shot does not replace them, and some men talk through both options with their doctor. The comparison below covers the choices men in The Woodlands ask us about most.

Filler and the P-Shot are often confused. Filler adds volume; PRP does not. Many men start with the P-Shot for function and only later ask about size, or the other way round. Whatever you choose, tell every clinician you see which treatments you are having.

Two placebo-controlled trials get cited most. Both are small, both enrolled men with mild to moderate ED, and they reached different conclusions.

• Greece, 2021. In Poulios and colleagues, Journal of Sexual Medicine, 60 men had two PRP or placebo injections a month apart. In that 2021 trial, 69% of the PRP group (20 of 29) had a meaningful gain on a standard erection score at 6 months, against 27% on placebo (7 of 26). The team observed no adverse events.
• United States, 2023. In Masterson and colleagues, Journal of Urology, 61 men followed the same two-injection schedule. In that 2023 trial, 58.3% with PRP and 53.6% with placebo improved meaningfully after 1 month, a difference the authors found not significant. They judged PRP safe but no more effective than placebo.
• What guidelines say. The AUA classes PRP for ED as experimental. The European Association of Urology advises using it only inside clinical trials, because the evidence is not yet strong enough.

Trials prepare PRP differently, inject different amounts and mostly follow men for months rather than years. The percentages describe groups of study volunteers, not what will happen to you. Full references sit in the sources list near the end of this page.

No. The FDA has not approved any platelet-rich plasma treatment for erectile dysfunction or sexual function, which makes the P-Shot an off-label treatment. The centrifuges that prepare PRP reach the market through FDA 510(k) clearance, and that clearance covers the device itself, not injecting the plasma into the penis.

Because the plasma is your own, an allergic reaction is unlikely. Before you agree to treatment, ask which PRP system the clinic uses and how much plasma it injects.

PRP is slow. The first few days usually bring tenderness or mild swelling, not a difference in erections. The trials checked men at 1, 3 and 6 months. Men who do notice a change tend to describe it building slowly over several weeks to a few months.

Nobody has shown how long a change lasts. Studies have followed men for months, not years, so InjectCo does not promise a duration, and some men see no change at all.

Your plan is set at the consult. Many men have one session, wait, and review how they feel before deciding on anything more. Both trials above used two injections one month apart, but a second session here is always your choice, never automatic.

The plasma comes from your own blood, so serious reactions are uncommon. The 2021 trial above reported no adverse events, and the 2023 trial judged PRP safe. Effects you should expect for a short time:

• tenderness or a dull ache for a day or two
• bruising or puffiness where the needle went in
• a small bruise or a little bleeding at the blood-draw site on your arm
• sensation that feels different for a while

Less common: infection, a firm small bump at an injection point (our article on lumps after a P-Shot explains why it happens), or a larger bruise. The main downside men mention matches the research: you pay for something that may not work for you.

Call or text us the same day if

you notice pain or swelling that keeps increasing, fever, discharge, redness that spreads, a bump that grows, or blood in your urine: (281) 326-9985. Go to an emergency room for an erection lasting longer than four hours or sudden, severe pain.

Every P-Shot at InjectCo MedSpa Woodlands is performed by our nurse injectors under the medical direction of Dr. Josh Allen, D.O., Medical Director.

InjectCo MedSpa Woodlands sits at 250 Ed English Dr #3D, Shenandoah, TX 77380, inside the Portofino Plaza office condominiums on the east side of I-45. The address is in the City of Shenandoah, right beside The Woodlands, so maps show Shenandoah while most of our patients live in the villages of The Woodlands.

Heading north on I-45: take exit 79A, stay on the frontage road and turn right onto Ed English Drive. Heading south: take exit 77, U-turn under I-45 at Research Forest Drive / Tamina Road, drive north on the frontage road and turn right onto Ed English Drive.

Measured on a weekday at midday, the clinic was about 7 minutes from Town Center and Oak Ridge North, 8 from The Woodlands Mall and Memorial Hermann The Woodlands, 9 from Market Street, Hughes Landing and the Cynthia Woods Mitchell Pavilion, 16 from Spring and 19 from Conroe. If you searched for a P-Shot near me from Panther Creek, College Park or another village, you are likely closer than you think.

Patients also come from Magnolia, Tomball, Willis, Montgomery, Kingwood and Humble. The drive times above were measured at midday on a weekday. The tiles below show typical weekday traffic for more areas.

1. Journal of Sexual Medicine (2021), volume 18, pages 926 to 935: Poulios and colleagues, “Platelet-Rich Plasma (PRP) Improves Erectile Function: A Double-Blind, Randomized, Placebo-Controlled Clinical Trial.” Read the abstract on PubMed.
2. Journal of Urology (2023): Masterson and colleagues, “Platelet-rich Plasma for the Treatment of Erectile Dysfunction: A Prospective, Randomized, Double-blind, Placebo-controlled Clinical Trial.” Abstract on PubMed.
3. American Urological Association. Erectile Dysfunction: AUA Guideline (2018), platelet-rich plasma statement.
4. European Association of Urology. EAU Guidelines on Sexual and Reproductive Health, Management of Erectile Dysfunction.
5. U.S. Food and Drug Administration. Premarket Notification 510(k).
6. Texas Medical Board, 22 Tex. Admin. Code §169.26 (unofficial copy, Cornell LII).
7. Nursys, U.S. nurse license lookup.

Written by the InjectCo team for the clinic serving The Woodlands. Page updated November 3, 2026.

The P-Shot uses platelet-rich plasma (PRP) prepared from your own blood. PRP is not FDA approved for erectile dysfunction, and injecting it into the penis is an off-label use the American Urological Association considers experimental. At InjectCo MedSpa Woodlands it is offered only after an assessment, by nurse injectors working under physician delegation. It does not add length or girth.

Results vary and are not guaranteed.

Possible side effects include tenderness, bruising, swelling and minor bleeding at the injection and blood-draw sites, and less often infection or a small firm bump. Men with a platelet or bleeding disorder or an active genital infection, or who take blood thinners, may not be candidates. Tell your nurse about every condition and medicine, and see your physician about new or worsening ED. This page is general education, not medical advice.