PRP for Hair Loss in Houston: Candidacy and Realistic Results

This article is educational and does not replace an evaluation by a board-certified dermatologist. If you are losing hair, please book a visit.

Platelet-rich plasma, or PRP, is a concentrate made from your own blood and injected into thinning areas of the scalp. It has become one of the most requested hair loss treatments in Houston, offered everywhere from dermatology practices to medical spas. The honest summary is that PRP can help some people with early to moderate pattern hair loss, works best alongside proven medications, and does little for several other causes of shedding. It is also not the first step. Hair loss has many causes, some of them fully reversible, and finding the cause comes before any injection. Here is how PRP works, what the evidence shows, and who is a good candidate.

What platelet-rich plasma actually is

How PRP is prepared

A small amount of blood is drawn from your arm, much like a routine lab draw, and spun in a centrifuge that separates it into layers. The platelet-rich portion of the plasma is collected and injected into the scalp through a series of small injections. At our office, the blood is processed in the centrifuge for about 10 minutes, and most sessions take under an hour.

Why the preparation method matters

Platelets carry growth factors involved in tissue repair and blood vessel formation, and the working theory is that concentrating them in the scalp supports follicles that are shrinking. How PRP is made varies widely between clinics, and that variation matters. A network meta-analysis of 25 trials found that PRP efficacy was associated with more frequent sessions at shorter intervals, chemical activation, and double rather than single centrifugation (Gupta and Bamimore, 2022). There is still no single standardized protocol, which is one reason results differ from study to study.

FDA status

PRP is not an FDA-approved treatment for hair loss. The centrifuge systems used to prepare it are regulated as medical devices; the FDA's product classification for these systems describes preparing autologous platelet-rich plasma for mixing with bone graft material (FDA). Using PRP on the scalp is therefore an off-label use of an FDA-cleared device, which dermatologists discuss openly with patients before treatment.

Ruling out reversible causes first

This is where a dermatology evaluation differs from a PRP package. The American Academy of Dermatology explains that effective hair loss treatment begins with finding the cause, and that when a disease, vitamin deficiency, hormone imbalance, or infection is suspected, a blood test or scalp biopsy may be needed (AAD). A typical hair loss workup looks for:

• Low iron stores. Iron studies, including ferritin, are commonly checked because low iron has been linked to diffuse shedding.
• Thyroid disease. Both an underactive and an overactive thyroid can cause hair to thin.
• Postpartum shedding. Heavy shedding a few months after childbirth is common and usually resolves on its own. The AAD notes that a woman may have postpartum shedding and early hereditary hair loss at the same time, which is why a careful exam matters.
• Medications. Several prescription drugs list hair shedding as a side effect.
• Illness, surgery, and rapid weight loss. A high fever, major surgery, or rapid weight loss can trigger a wave of shedding months later. That includes rapid weight loss on GLP-1 medications.
• Hair care and styling. Tight styles and harsh chemical treatments can cause breakage and traction hair loss.

If one of these is driving your shedding, correcting it is the treatment, and PRP would add cost without addressing the cause. Our post on normal shedding versus hair loss can help you decide whether it is time for an evaluation.

Treatment decisions depend on your individual skin, medical history, and goals. The information below describes how dermatologists evaluate options; it is not a prescription or a recommendation for any specific person.

Who is a candidate for PRP

The best-studied use of PRP is androgenetic alopecia, the hereditary pattern of thinning known as male pattern and female pattern hair loss. Good candidates generally have:

• Early to moderate thinning, with follicles that are shrinking but still present.
• A confirmed pattern hair loss diagnosis, with reversible causes addressed.
• Realistic expectations about density improvement rather than full regrowth.
• Willingness to continue maintenance sessions and, ideally, a medication.

PRP is usually not the right first step for areas that are already completely bald, for scarring hair loss where follicles have been destroyed, for people with platelet or clotting disorders, or for people taking blood thinners, unless their physician agrees. It is also not a substitute for a diagnosis in someone with sudden or patchy hair loss.

What the evidence actually shows

For pattern hair loss

A 2020 systematic review of PRP for androgenetic alopecia analyzed 12 clinical trials. It found that 84% reported a positive effect, while only half demonstrated statistically significant improvement using objective measures, and 17% found PRP ineffective. The review reported no major side effects (Gentile and Garcovich, 2020). A 2023 network meta-analysis of 27 trials and 1,110 patients compared treatments by change in hair density at 24 weeks. It ranked 5% minoxidil combined with PRP above either PRP or minoxidil alone, and ranked PRP on its own below 5% minoxidil on its own (Gupta et al., 2023).

Taken together, the evidence is real but moderate in quality: studies are small, use different preparation methods, and follow patients for relatively short periods. The AAD describes PRP as a treatment that studies show can be safe and effective for hair loss, and that finding is best supported for pattern hair loss.

For alopecia areata and scarring alopecia

The evidence is weaker here. In a randomized, placebo-controlled split-scalp study in the Journal of the American Academy of Dermatology, PRP showed limited efficacy for alopecia areata (Gupta et al., 2021). A 2022 systematic review of PRP for alopecia areata and scarring alopecias concluded that it could not be recommended because of a lack of high-quality evidence (Tejapira et al., 2022). For moderate to severe alopecia areata, the treatment landscape has shifted to oral JAK inhibitors: the FDA approved baricitinib for adults with severe alopecia areata in 2022, ritlecitinib for patients 12 and older in 2023, and deuruxolitinib for adults in 2024.

PRP alongside minoxidil and finasteride

In practice, dermatologists usually add PRP to a medication plan rather than substituting it for one. The main options are:

• Topical minoxidil. Available without a prescription. The AAD notes it helps early hair loss, works best combined with another treatment, takes 6 to 12 months to show results, and must be continued to keep them.
• Finasteride. An FDA-approved pill for male pattern hair loss that works best when started early and must be continued (AAD).
• Spironolactone. Used for female pattern hair loss; it requires reliable contraception because it can cause birth defects (AAD).
• Low-dose oral minoxidil. An off-label option dermatologists now prescribe frequently. In a 2024 randomized trial in men, 5 mg of oral minoxidil daily performed comparably to twice-daily 5% topical minoxidil over 24 weeks, with a vertex advantage on photographic assessment (Penha et al., 2024).
• Low-level laser devices. The AAD calls results promising but notes that only a few studies exist and not everyone responds.

For patients weighing PRP against microneedling, our comparison of PRP and microneedling covers the differences.

How PRP treatment works at Bayou City Dermatology

For hair restoration, PRP therapy at our practice typically begins with four treatments spaced a month apart, followed by a maintenance schedule your provider sets based on your response. Each session starts with a blood draw, followed by centrifuge processing and scalp injections. A topical numbing cream can be applied beforehand. Mild redness, swelling, or tenderness at the injection sites is normal and usually resolves within a day or two, and most patients return to normal activities the same day. PRP is one part of our broader hair loss treatment approach, which starts with diagnosis.

Realistic timeline and what results mean

• Months 1 to 3. Expect little visible change. Hair grows slowly, and some patients notice temporary shedding.
• Months 3 to 6. This is when studies typically measure results, and when responders may notice less shedding and improved density, most often at the crown and part line.
• Beyond six months. Results are maintained, not permanent. Pattern hair loss continues underneath treatment, so maintenance sessions and ongoing medication are how gains are kept.

A good result is usually thicker coverage and slower progression, not the hairline of a decade ago. Standardized photos at baseline make it easier to judge progress objectively.

Cost of PRP for hair loss in Houston

PRP for pattern hair loss is considered cosmetic and elective, and it is generally not covered by health insurance. The diagnostic visit and any lab work may be billed to insurance, depending on your plan. Pricing varies by practice and by whether sessions are bought individually or as a series. When comparing offers, ask whether a physician evaluates the cause of your hair loss first, which preparation system is used, how many sessions are included, and who performs the injections. A low package price from a clinic that skips the diagnosis is not the same service.

Side effects and safety

Because PRP comes from your own blood, allergic reactions are very unlikely. Common, short-lived effects include scalp tenderness, pinpoint bleeding, mild swelling, headache, and bruising at the blood draw site. Some patients notice temporary shedding in the weeks after treatment. Infection is rare when sterile technique is used. Call the office if you develop increasing pain, warmth, pus, or fever after a session.

Frequently asked questions

Does PRP work for female pattern hair loss?

It can help. Women with female pattern hair loss were included in many of the trials, and the 2022 network meta-analysis associated female sex with better PRP response. The AAD still describes the research as preliminary, so PRP is usually combined with minoxidil or another medication.

How soon can I wash my hair after PRP?

Most patients are asked to wait until the evening or the next day before washing, and to avoid hair dye, harsh products, and heat styling for a day or two. Your provider will give specific instructions.

Is PRP painful?

Most patients describe mild discomfort. The blood draw feels like a routine lab test, and numbing cream makes the scalp injections more comfortable. Tenderness usually fades within a day or two.

How long do PRP results last?

Results fade gradually without maintenance because pattern hair loss continues. Most patients who respond continue with periodic maintenance sessions set by their provider, along with daily medication.

Can I combine PRP with minoxidil or finasteride?

Yes, and combination treatment is how dermatologists usually use PRP. In the 2023 network meta-analysis, minoxidil combined with PRP ranked higher for hair density than either treatment alone.

Book a hair loss evaluation

If your part is widening, your ponytail feels thinner, or your crown is showing, the first step is finding out why. Book a hair loss evaluation at Bayou City Dermatology, and we will check for reversible causes and build a plan that may include PRP. Learn more about how a dermatologist can help with hair loss.

References

1. American Academy of Dermatology. Hair loss: diagnosis and treatment. Accessed September 2026. aad.org
2. American Academy of Dermatology. Female pattern hair loss. Accessed September 2026. aad.org
3. Gentile P, Garcovich S. Systematic review of platelet-rich plasma use in androgenetic alopecia compared with minoxidil, finasteride, and adult stem cell-based therapy. Int J Mol Sci. 2020;21(8):2702. pubmed.ncbi.nlm.nih.gov
4. Gupta AK, Bamimore M. Platelet-rich plasma monotherapies for androgenetic alopecia: a network meta-analysis and meta-regression study. J Drugs Dermatol. 2022;21(9):943-952. pubmed.ncbi.nlm.nih.gov
5. Gupta AK, et al. Relative effects of minoxidil 5%, platelet-rich plasma, and microneedling in pattern hair loss: a systematic review and network meta-analysis. Skin Appendage Disord. 2023;9(6):397-406. pubmed.ncbi.nlm.nih.gov
6. Gupta V, et al. Evaluation of platelet-rich plasma on hair regrowth and lesional T-cell cytokine expression in alopecia areata. J Am Acad Dermatol. 2021;84(5):1321-1328. pubmed.ncbi.nlm.nih.gov
7. Tejapira K, et al. Platelet-rich plasma in alopecia areata and primary cicatricial alopecias: a systematic review. Front Med. 2022;9:1058431. pubmed.ncbi.nlm.nih.gov
8. Penha MA, et al. Oral minoxidil vs topical minoxidil for male androgenetic alopecia: a randomized clinical trial. JAMA Dermatol. 2024;160(6):600-605. pubmed.ncbi.nlm.nih.gov
9. U.S. Food and Drug Administration. Product classification: platelet and plasma separator for bone graft handling (product code ORG). accessdata.fda.gov