What Scalp PDRN Injections Can (and Can’t) Address
Rejuran Healer’s PDRN component, well-established in facial skin repair, has been increasingly adopted in scalp medicine. Primary indications include:
- Scalp environment restoration: Addresses chronic scalp inflammation, dryness, or excess sebum — creating a healthy foundation for hair growth
- Telogen effluvium (stress/fatigue/postpartum shedding): PDRN accelerates follicle recovery and re-entry into the anagen (growth) phase
- Seasonal shedding: Stabilizes hair follicle cycling during autumn/winter transition periods
- Scalp aging: Declining microcirculation causing hair miniaturization — PDRN improves local blood flow
Important: For androgenetic alopecia (genetic hair loss), PDRN serves as a useful adjunct but typically needs to be combined with oral medications (finasteride/minoxidil) for optimal results.
Mechanism: How PDRN Acts on the Scalp
PDRN exerts multiple beneficial effects in the scalp environment:
- Angiogenesis promotion: Improves scalp microcirculation, ensuring follicles receive adequate oxygen and nutrients
- Anti-inflammatory action: Reduces chronic low-grade scalp inflammation — a key driver of follicle miniaturization
- Cell proliferation stimulation: Activates dormant follicles and shortens the telogen (rest) phase
- Tissue repair: Improves overall scalp health and condition
The Treatment Session
- Scalp evaluation (10 min): Dermoscopy to assess scalp condition, follicle density, and hair loss pattern
- Scalp cleanse: Remove excess sebum for optimal PDRN penetration
- Injection (20–30 min): Fine-needle multi-point injection into the scalp dermis, with focus on thinning zones
- Post-care: Soothing spray applied; avoid washing hair on the day of treatment
Recommended: once every 3–4 weeks for 3–5 sessions as a base course; maintenance every 2–3 months. Results begin to appear after 2–3 months.
Scalp Treatment Options Compared
| Treatment | Mechanism | Best For | Invasiveness |
|---|---|---|---|
| PDRN scalp injection | Cell repair + microcirculation | Stress/seasonal shedding | Low |
| PRP (autologous plasma) | Growth factor stimulation | Multiple hair loss types | Low |
| Oral medications | DHT inhibition/follicle stimulation | Androgenetic alopecia | None |
| Low-level laser therapy | Photobiomodulation | Multiple types | None |
Frequently Asked Questions
Is PDRN effective for genetic (androgenetic) hair loss?
For androgenetic alopecia, PDRN improves scalp environment and microcirculation as adjunct therapy. However, it typically works best in combination with oral medications (finasteride for men, minoxidil for all genders) for meaningful regrowth in genetic hair loss.
Is scalp PDRN injection painful?
The scalp is more sensitive than facial skin to needles. Rappoel doctors apply local anesthesia before the procedure, substantially reducing discomfort. Most patients find the treatment tolerable.
Can I wash my hair normally after scalp PDRN?
Avoid washing your hair on the day of treatment. From the next day, normal hair washing is fine — just be gentle and avoid vigorous scalp scrubbing.
When will I see results from scalp PDRN?
Scalp treatments work more slowly than facial treatments. Expect 2–3 months before noticing reduced shedding and improved hair quality. Complete the 3–5 session base course before evaluating overall effectiveness.
Is scalp PDRN good for postpartum hair loss?
Excellent choice. Postpartum telogen effluvium typically appears 3–6 months after delivery. PDRN accelerates follicle re-entry into the growth phase, shortening the duration of shedding.
Can PDRN be combined with other hair loss treatments?
Yes, and combinations often produce better results. PDRN + low-level laser therapy is a common pairing available at Rappoel in the same session. Ongoing oral medications (if prescribed) are compatible and complementary.
Contact Rappoel Dermatology Clinic
📍 77, Seocho-daero, Seocho-gu, Seoul, South Korea
🕐 Mon–Fri 10:00–19:00 · Sat 10:00–17:00
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