Rx Hair in Irvine, CA performed by Sabeen Munib, MD

Hair Restoration · Irvine, CA

Rx Hair Restoration in Irvine, CA: Prescription Hair-Loss Plans by Sabeen Munib, MD

Finasteride, minoxidil and oral combinations, matched to what is actually driving your hair loss.

Sabeen Munib, MD
Medically reviewed by Sabeen Munib, MD15+ years in cosmetic dermatology
MD · 15+ yearsIrvine, CA
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New patients: 15% off your first treatment.

Everyprescription written and reviewed by Sabeen Munib, MD

Early weeks

Possible extra shedding

minoxidil can briefly increase shedding at first

Regrowth

Months 3 to 6

when it usually becomes noticeable, if it appears

Full assessment

Up to 12 months

when the response is fairly judged

Follow-up

Set individually

plan adjusted on your response

If you stop

Loss generally resumes

continued use holds the result

Overview

Prescription treatment for hair loss

Rx Hair is a physician-supervised medication plan for thinning, a receding hairline or pattern hair loss. Dr. Munib evaluates hair loss and, where clinically appropriate, treats it with prescription medication as part of a broader hair-restoration plan.

The two most commonly used FDA-approved options are oral finasteride and topical minoxidil. They can be used on their own, or alongside in-office treatments where that suits the case.

Whether medication is appropriate at all depends on what is actually driving the hair loss, which is why the consultation starts with the pattern and the cause rather than with a prescription.

Sabeen Munib, MD

Medically reviewed by Sabeen Munib, MD · Physician, Medical Director

Who prescribes

How your treatment is decided

Hair loss medication is a medical decision. Some of these medications are sold over the counter. Which one suits you, if any, is still a medical question. Dr. Munib goes through the options with you at your first consultation.

Before writing a prescription, she reviews your medical history. No two patients are alike. Your first visit is in person. Follow-ups are arranged as needed, and those can be virtual or in person.

Every

prescription written by Dr. Munib

15+ years

in cosmetic dermatology

5.0★

Google rating

441+

patient reviews across platforms

Where it is assessed

Pattern matters more than area

Hair loss is read by pattern. Where the thinning sits is part of how the cause is judged and how response is followed.

01

Crown

Slow loss, support density

the region most often described as responding to oral finasteride

02

Mid-scalp

Slow loss, support density

assessed alongside the crown in male-pattern loss

03

Hairline and temples

Assess recession

response here is less predictable and is discussed honestly before starting

04

Diffuse thinning

Establish the cause first

common in women; a widening part is assessed before any prescription is considered

Individual

Dosing

set at consultation for the patient, never published as a protocol

How the two medications work

Finasteride is a daily oral medication that blocks DHT, a hormone linked to male pattern baldness. It is used to slow or stop loss, and in some patients it supports regrowth, most often at the crown and mid-scalp.

Topical minoxidil is a vasodilator. It improves blood flow to the scalp and lengthens the growth phase of the follicle, and is applied directly to the thinning area.

Why the cause is established first

Not all thinning is androgenetic. Shedding after pregnancy, thyroid disease, iron deficiency and scarring conditions can look similar on first glance and do not respond the same way. Published literature describes finasteride and minoxidil for androgenetic alopecia; that evidence describes studied groups, not a predicted result for any individual.

Establishing what is driving the loss is what decides whether medication is the right tool, and which one.

What it suits

What brings patients here, and what is weighed

A prescription plan fits some presentations and not others. What is weighed is listed beside each.

Presenting concern
What may help
What is weighed first
Early male-pattern thinning
Often the first thing considered
how long it has been going on, family history, and whether the patient is prepared to continue treatment
Diffuse thinning in women
Sometimes, after the cause is established
postpartum timing, thyroid and iron status, and whether the pattern actually reads as androgenetic
Wanting to act before it progresses
Reasonable to discuss
there has to be something to treat; prevention is not a prescription on its own
Not ready for in-office procedures
Medication can be used on its own
what the patient is willing to keep up with, since stopping generally means the loss resumes
Hair loss after transplantation elsewhere
Supportive care only
Spectrum does not perform surgical hair transplantation, and does not repair it surgically

What it pairs with

Medication alongside in-office treatment

Concern
Often pairs with
Why
Thinning that has been present for a while
PRFM or exosome scalp therapy
in selected patients a staged plan is discussed; whether it adds anything depends on the case
Wanting a drug-free option first
AnteAGE growth factors
discussed where a patient prefers not to start medication
Cause not yet established
Hair Loss Treatment work-up
the work-up comes first; medication follows the diagnosis, not the other way round

Candidacy

Who a prescription plan tends to suit

Nothing is prescribed until Dr. Munib has assessed you in person. That assessment covers the pattern, how long it has been happening, family history, and anything medical that could be contributing.

How Dr. Munib decides

She establishes what is driving the loss before deciding whether medication is the right tool, which one fits, and whether it should stand alone or sit within a wider plan. Where another clinician is more appropriate, she says so.

Often a reasonable fit

Men with male-pattern loss; women with diffuse thinning once the cause is established; early-stage loss; patients not ready for in-office procedures; a family history of pattern loss.

Where it is limited

Scarring hair loss; thinning driven by an untreated medical cause; patients who do not want ongoing treatment, since stopping generally means the loss resumes. Surgical transplantation is not performed here.

What to expect

The usual sequence

Timepoint
What happens in the tissue
What you see
Weeks 1 to 4
Early adjustment
no visible change yet; minoxidil can cause a temporary increase in shedding at the start, which is an expected part of the cycle
Weeks 6 to 8
Shedding settles
most patients notice reduced shedding before they notice regrowth
Months 3 to 6
Growth phase
where regrowth is going to appear, this is usually when it becomes noticeable
Up to 12 months
Full assessment
the point at which the response is fairly judged

These are the timings usually described, not a promise. Continued use is needed to hold a result; if treatment stops, hair loss generally resumes.

Risks

What to know before starting

Both medications are well established and both carry risks worth understanding before you begin.

Finasteride

May rarely cause sexual side effects in men. These are usually reversible on stopping the medication. It is discussed before starting, not afterwards.

Minoxidil

May cause scalp irritation, and a temporary increase in shedding when treatment first begins.

Stopping treatment

Results are maintained by continuing. If the medication is stopped, hair loss generally resumes.

It may not work for you

Response varies, and some patients see little change. That possibility is part of the conversation before a prescription is written.

Nothing is prescribed before Dr. Munib has seen you. What is appropriate, and how it is followed, is decided for you.

How treatment is followed

Response is reviewed with Dr. Munib and the plan adjusted where needed. How often that happens is decided for the individual patient rather than set as a fixed schedule.

Using it day to day

Daily
Oral or topical medication is taken at home, as directed for you
Early weeks
Expect shedding before regrowth; report scalp irritation rather than stopping unreviewed
Ongoing
Keep the follow-up reviews, since the plan is adjusted on what is actually happening
If you stop
Tell Dr. Munib. Loss generally resumes, and there may be a better next step than simply stopping

Cost

What it costs

The consultation is $150. You pay $65 to book, and that comes off the total. If you go on to treatment, the $65 can go toward that instead. Cancel in time and it is refunded. Miss the appointment and it is kept as a no-show fee.

Finasteride typically costs about $20 a month and may be covered by your insurance. Minoxidil is sold over the counter. Any in-office treatment is quoted separately.

New patients: 15% off your first treatment.

Pay monthly with

What it looks like

Holding on to what you have

The realistic aim for most patients is keeping the hair they still have, with some regrowth where the follicle is still active. It works gradually, which is why it tends to read as nothing having happened rather than as an obvious change.

Where hair has been lost to scarring, medication will not bring it back. That is said plainly at consultation.

Patient reviews

What Patients Say

4.97★ across 441 verified Boulevard patient reviews.

Google Business Profile: 5.0★ across 45 public reviews, verified August 2026. The reviews below are recent public Google reviews, reproduced verbatim.

Dina Naziri
★★★★★

I've gotten Fotona laser and microneedling for acne scars and laser hair removal done here, and Dr. Munib is absolutely amazing! Dr. Munib always makes sure that I was comfortable before, during, and after the treatment, and she checks up regularly following treatment to see how I was doing. I've seen great results following my treatments and will definitely be coming back!

Dina Naziri

2 weeks ago

Jamel Neill
★★★★★

After several aesthetic nurses told me I was allergic to filler dissolver, Dr. Munib took a careful, evidence-based approach. She used ultrasound to locate my migrated lip filler, tested a small area first, and explained I was reactive—not allergic. She dissolved a small test area before safely treating my upper lip. Throughout the process she was gentle, thorough, and educational. It’s a long drive for me, but her knowledge and expertise make it absolutely worth it.

Jamel Neill

3 months ago

Siena Viencek-Walsh
★★★★★

Thank GOD for Dr. Munib. She is the angel of dissolver!!! I had HA nodules and Sculptra nodules from previously going to Dermfx and I went to Dr. Munib for ultrasound guided dissolving. She is gentle, patient, knowledgeable, kind and funny. I feel like she is the last of the good ones in this business. If you are interested in natural looking aesthetic results that aren’t botched and don’t cause you years of facial pain go to her. I would try to see her as my primary doc if I wasn’t moving out of the area. I would travel to go see her though.

Siena Viencek-Walsh

3 months ago

Questions

Frequently Asked Questions

Yes. Prescription minoxidil can be offered in higher concentrations than OTC options and may include advanced delivery systems for better scalp penetration and results.

Finasteride is FDA-approved for male pattern baldness. It is generally well tolerated, but we assess all patients carefully and monitor for side effects, especially in long-term use.

Minoxidil is safe for both men and women. Finasteride is used off-label in select female patients when appropriate and under close supervision.

Yes. Prescription treatments are often paired with PRP, exosomes, or growth factor therapies for stronger, faster, and longer-lasting results

If you’re experiencing early to moderate hair thinning or excessive shedding, a consultation with Dr. Munib can determine if prescription hair loss medication is the appropriate option, either alone or as part of a broader plan.

Dr. Munib evaluates hair loss and, where clinically appropriate, treats it with prescription medication as part of a broader hair-restoration plan. Whether it is appropriate depends on your presentation, your history and an in-person evaluation with Sabeen Munib, MD.

Published peer-reviewed literature describes this approach for this indication. Evidence describes what has been reported in studied groups, not a predicted result for any individual. In selected patients it may be appropriate; that judgement is made at consultation.

Some concerns fall outside what this service addresses. Where that is the case it is discussed at consultation, and a referral is made where another clinician is more appropriate.

Irvine, CA

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Medically reviewed by Sabeen Munib, MD. Last reviewed 2026-09-23.

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