2026-09-26
Still Seeing a Thin Crown Despite Hair Loss Medication? From Topical Treatments to Follicle Injections | Hair Loss Clinic near Seolleung Station
Exploring the 2025 Annals of Dermatology review on hair loss therapies, from oral & topical finasteride to scalp follicle injections, at Cordia Clinic.

Hello.
I am Dr. Dajeong Kim, Chief Director of Cordia Clinic.

“I’ve been taking hair loss medication, but my crown still looks empty.”
“Oral medications feel burdensome—are there other options?”
“Will combining follicle injections or exosomes yield better results?”
When looking into hair loss treatments, the sheer number of choices can be overwhelming. Knowing where to begin and when to introduce supplementary therapies often creates confusion.
Today, based on the review article **"Updates in Treatment for Androgenetic Alopecia"** published in the 2025 issue of the *Annals of Dermatology*, I will address the questions patients most frequently ask.
This review summarizes both conventional and emerging treatments for male and female pattern hair loss. The key takeaway: maintain the foundational treatments while thoughtfully broadening options tailored to each individual's condition.
If my crown still looks empty despite taking hair loss pills, does it mean the medication isn't working?
Not necessarily.
An essential goal of hair loss treatment is not only visibly increasing hair count, but also halting the progression of thinning and shedding.
Checking in the mirror every day makes it difficult to perceive subtle changes. Factors such as lighting, hair length, and parting direction can significantly alter how the crown appears.
The review emphasizes that an adequate treatment period is required when evaluating the efficacy of finasteride, minoxidil, and similar therapies. Rather than drawing conclusions within a few weeks, progress should be evaluated over several months.
"It is not yet dense" does not mean "the treatment is ineffective."
Whenever possible, comparing photos taken under consistent lighting and angles, along with evaluating hair thickness and density, provides the most reliable assessment.
At Cordia Clinic, we utilize the 3D imaging AFS system at every session to objectively monitor and track progress.
Are finasteride and dutasteride still considered the primary treatments?
Yes. The review highlights them as the cornerstone of male pattern hair loss treatment.
In male pattern hair loss, DHT acts on genetically susceptible hair follicles, causing progressive miniaturization of the hair. Finasteride and dutasteride work by inhibiting the enzyme responsible for DHT production.
A long-term Korean study cited in the paper demonstrated that sustained use of finasteride or dutasteride halted progression or improved hair loss in a significant proportion of patients.
However, simply because dutasteride is more potent does not mean it should automatically be the first-line choice for everyone.
Factors such as the current stage of hair loss, past response to treatment, and previous side effects must all be taken into account. Adverse effects involving sexual function may arise; if discomfort occurs, rather than enduring it alone or adjusting dosages arbitrarily, consulting a medical professional is recommended.
Are topical alternatives available if oral medications feel too burdensome?
One notable alternative highlighted in the paper is topical finasteride.
This approach targets the scalp directly to achieve local efficacy while minimizing systemic absorption. Clinical trials referenced in the review reported increases in hair count alongside significantly lower systemic exposure compared to oral formulations.
However, applying a topical formula does not mean zero absorption into the body, nor does it guarantee complete elimination of systemic side effects.
It is important to first identify why oral medications feel burdensome, and then select an approach based on your scalp condition and personal lifestyle convenience.
Is there an oral form of minoxidil as well?
While minoxidil is widely known as a topical treatment, recent interest and research into low-dose oral minoxidil have been expanding.
The review notes that oral minoxidil can be considered for select patients who struggle with the daily compliance of topical application or who demonstrate insufficient response to it.
However, oral minoxidil for hair loss is an off-label use and requires clinical judgment by a qualified physician.
Potential side effects include hypertrichosis, dizziness, fluid retention (edema), and palpitations. Therefore, blood pressure, cardiovascular history, and concurrent medications must be thoroughly reviewed beforehand.
Rather than thinking, "Applying it is tedious, so I'll just switch to pills," verifying whether it is genuinely safe and suitable for your profile is essential.
Is it beneficial to combine follicle injections or scalp care with hair loss medication?
When response to foundational treatment is inadequate or further enhancement is desired, adjunctive treatments can be discussed.
However, "follicle injection" does not refer to a single standardized drug. Scientific evidence and expected outcomes vary depending on the specific ingredients and administration protocols used.
The review highlights the following modalities:
Modality | Key Findings in the Review | Points to Consider |
PRP | Utilizes platelets and growth factors derived from the patient's own blood; studies demonstrate improvements in hair density and thickness. | Preparation and injection protocols vary widely; individual responses differ, and maintenance sessions are required. |
Botulinum Toxin | May relieve muscle tension around the scalp and influence signaling pathways related to follicle growth. | Largely supported by small-scale studies; optimal protocols and long-term efficacy require further validation. |
Scalp Exosome Application | Early studies explore effects on cellular communication in hair follicles and anagen phase induction. | Products and delivery methods differ significantly; evidence regarding long-term efficacy and safety remains limited. |
Low-Level Light Therapy (LLLT) | Non-invasive modality supported by studies showing improvements in hair density and diameter. | Requires consistent, regular use; clinical outcomes depend heavily on device parameters and protocols. |
These adjunctive options should be considered as potential add-ons to established therapies. The novelty of a procedure alone does not mean it outperforms foundational medical therapy.
Furthermore, because the review did not evaluate PDRN as a standalone treatment category, evidence for PDRN must be appraised through separate scientific literature.
Does applying exosomes to the scalp regenerate new hair follicles?
Current scientific evidence does not support such a claim.
Exosome research focuses on modulating cellular activity and growth signals within existing follicles. While early investigations noted improvements in hair thickness and density, this should never be interpreted as "creating brand-new follicles from areas where they have vanished."
Even under the broad umbrella term "exosome," cell sources, isolation methods, and biochemical compositions vary widely. Results obtained from a specific formulation in one study cannot be generalized across all commercial preparations.
Before undergoing scalp procedures, it is critical to confirm the precise formulation, administration technique, and realistic scope of outcomes.
Will there be hair loss treatments that last for months with a single injection?
The paper also highlights ongoing developments in sustained-release formulations designed to release finasteride or dutasteride gradually inside the body.
This research aims to relieve the burden of daily pill consumption, representing a completely different pharmacological mechanism from conventional scalp injections.
In addition, novel approaches directly blocking or degrading androgen receptors, as well as RNA-targeted therapies modulating receptor expression, are currently under active investigation.
However, these represent exploratory trends noted at the time the paper was written. Promising research findings must be distinguished from treatments that have thoroughly established clinical efficacy and safety for everyday practice.
If you are currently undergoing treatment, what should you evaluate first?
Before adding new procedures, examine the following:
Are you receiving treatment tailored to your specific hair loss pattern?
Have you adhered to the medication consistently for a sufficient duration?
When comparing before-and-after clinical photographs, what objective changes are present?
Has treatment compliance been interrupted due to side effects or application inconvenience?
As therapeutic options multiply, discerning which solutions align with your personal needs becomes increasingly crucial.
Rather than starting multiple procedures simultaneously simply because your crown appears thin, verifying your response to baseline therapy and methodically adding targeted support yields far better outcomes.
At Cordia Clinic, we evaluate your current scalp, hair density, and previous treatment history to formulate an individualized therapeutic roadmap.
If you are struggling with crown hair loss in Gangnam areas such as Yeoksam, Seolleung, or Daechi, feel free to consult us about your current regimen and concerns.
Rather than simply adding more treatments, we will help you establish a personalized, sustainable plan that works for you over the long term.
※ Reference: Shin JW, Huh CH. Updates in Treatment for Androgenetic Alopecia. Ann Dermatol. 2025;37(6):327–335.
This article summarizes the aforementioned review to help patients better understand current clinical insights; individual treatment responses may vary.
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Frequently Asked Questions
If my crown still looks sparse after taking hair loss medication, is it ineffective?
Not necessarily. Preventing further thinning and shedding is just as vital a goal as increasing visible hair count. Visual perception can change depending on lighting or how hair is parted, so hair density and caliber should be monitored under consistent conditions over several months.
Can I replace oral finasteride with a topical formulation?
Yes, topical finasteride is a viable alternative. Studies indicate that applying finasteride directly to the scalp improves hair count while reducing systemic exposure. However, some absorption still occurs; consult your physician regarding scalp condition, tolerability, and personal preferences before switching.
Can I start taking low-dose oral minoxidil right away?
A thorough clinical assessment by a physician must come first. Using oral minoxidil for hair loss is an off-label treatment that may lead to hypertrichosis, dizziness, edema, or palpitations. Blood pressure, cardiovascular health, and concurrent medications must be thoroughly reviewed prior to initiation.
Do scalp exosome treatments regenerate brand-new hair follicles?
Current scientific evidence does not indicate that exosomes regenerate new follicles where none exist. Exosomes are being studied for their ability to modulate follicular signaling and prolong the anagen growth phase to enhance thickness and density, but they cannot revive absent follicles.
Is it advisable to combine follicle injections with standard hair loss medications?
It can be a supportive option if foundational medical treatments show suboptimal results. Modalities such as PRP, low-level light therapy, and exosomes have demonstrated positive effects on hair thickness and density, but they do not replace core medical therapies. A combined approach should be determined based on an accurate evaluation of your condition.