Ingredient Evidence
EGF in dermatology: what growth factors do in the skin
10 August 2026 · 6 min read
Based on a review by dermatologists at Chung-Ang University College of Medicine, Seoul
Summary of independently published research. Educational content only — it is not a claim about any specific product, and not medical advice.
Epidermal growth factor (EGF) is a signalling protein that tells skin cells to proliferate and repair. Its clinical career began in wound care; a 2022 review in the International Wound Journal, written by dermatologists at Chung-Ang University College of Medicine in Seoul, surveys how EGF is now used across dermatological practice.
From wound healing to anti-ageing
Because EGF drives keratinocyte proliferation and re-epithelialisation, its first documented uses were in healing wounds and post-procedure skin. The same mechanism is what cosmetic formulators are interested in: skin that renews faster tends to look smoother and more even.
A randomised controlled trial published in Medicina in 2021 tested an EGF-containing ointment as adjuvant therapy for solar lentigines — a controlled clinical setting rather than a consumer test.
Delivery is the hard part
EGF is a large protein, so getting it past the stratum corneum is a formulation problem, not a marketing one. Research groups at Korea University and Inha University Hospital published work in 2026 on an EGF-loaded elastosome formulation developed specifically to improve skin penetration and anti-ageing effects.
A separate study in Annals of Dermatology tested a cross-linked hyaluronic-acid microneedle patch combining acetyl hexapeptide-8 with EGF for anti-wrinkle efficacy on Korean skin — again, a delivery-focused approach.
What clinical testing has measured
A completed pilot study registered on ClinicalTrials.gov (NCT05724589) at the Institute of Dermatology in Thailand assessed an EGF serum for facial hydration, elasticity, pigmentation and wrinkles using a before-and-after design.
These are the four outcomes worth asking any growth-factor product about, because they are the ones investigators actually measure.
Key takeaways
- EGF's role in skin is regenerative signalling — it originated in wound-healing medicine.
- Penetration and stability determine whether an EGF formulation can work at all.
- Published trials measure hydration, elasticity, pigmentation and wrinkle depth.
Sources
- 1. The use of epidermal growth factor in dermatological practiceInternational Wound Journal, 2022 (Koh, Lee, Park — Chung-Ang University, Seoul)
- 2. A randomized controlled trial on EGF-containing ointment for solar lentigines as adjuvant therapyMedicina (Kaunas), 2021
- 3. EGF-loaded elastosome formulation for enhanced skin penetration and anti-aging effectsCosmetics (MDPI), 2026 — Korea University / Inha University Hospital
- 4. Anti-wrinkle efficacy of a cross-linked hyaluronic acid microneedle patch with EGFAnnals of Dermatology, Korean Dermatological Association
