EGF in skincare — what epidermal growth factor does and how to use it

EGF — epidermal growth factor — is one of Korean skincare's most talked-about repair ingredients. It's a skin-signalling protein that tells cells to renew, repair and rebuild, making it a favourite for anyone dealing with dullness, fine lines, post-blemish marks or a weakened barrier. Unlike exfoliating acids or retinoids, EGF doesn't remove surface skin; it supports the skin's own regeneration process from within.

What EGF actually is

EGF is a naturally occurring growth factor — a type of protein made up of amino acids — that binds to receptors on skin cells and triggers renewal. In skincare it's usually produced through biotechnology (often as sh-oligopeptide-1) and added to serums, ampoules and creams at low, effective concentrations. Because it works by signalling rather than stripping, it's unusually gentle for an anti-ageing active.

What it does

• Supports cell turnover and renewal for smoother, more even-looking skin.
• Helps repair the appearance of post-blemish marks, redness and minor texture damage.
• Boosts firmness and elasticity by encouraging healthier collagen and elastin behaviour over time.
• Strengthens a weakened barrier, making skin less reactive and better at holding moisture.
• Calms and restores skin after procedures, sun exposure or over-exfoliation.

Common forms and names

You'll often see EGF listed under different ingredient names on Korean product labels. They all refer to similar skin-signalling peptides.

• sh-Oligopeptide-1 — the most common cosmetic name for epidermal growth factor.
• Epidermal Growth Factor (EGF) — the umbrella term.
• Human Oligopeptide-1 — another label name used in some regions.
• Growth factor blends — some formulas combine EGF with FGF, IGF or other signalling peptides for broader repair support.

How to use it

1. Apply to clean, dry skin after toner or essence but before moisturiser.
2. Use a serum or ampoule — these formats keep the molecule stable and let it absorb well.
3. Evening is ideal, since skin naturally repairs overnight.
4. Use a few drops or a pea-sized amount; EGF works at low concentrations, so more isn't necessary.
5. Follow with a barrier-supporting moisturiser containing ceramides, squalane or panthenol.

Who it's for

• Mature or ageing skin wanting visible firmness and smoothness support.
• Skin recovering from breakouts, redness or post-inflammatory marks.
• Sensitive skin that can't tolerate strong retinoids or acids.
• Anyone whose barrier feels tight, reactive or over-exfoliated.
• Skin that looks dull and lacks bounce despite good hydration.

What to expect

• First 2–4 weeks: skin feels softer, more hydrated and less reactive.
• Weeks 4–8: a gradual smoothing of fine texture and a healthier, more even tone.
• Weeks 8–12: firmer, plumper-looking skin with post-blemish marks visibly softened.
• 3–6 months: clearer, stronger, more resilient skin with fewer signs of fatigue.

Pairings and cautions

• Pairs beautifully with peptides, PDRN, niacinamide, hyaluronic acid and ceramides.
• Use alongside a gentle retinal on alternate nights once skin is used to both.
• Avoid layering with strong AHAs, BHAs or high-strength vitamin C in the same routine — acids can destabilise growth factors and irritate freshly renewed skin.
• Always finish with SPF 50 in the morning; healthy renewal needs daily sun protection.

Browse EGF serums, ampoules and peptide-rich repair formulas in the Litsy shop — a gentle, long-term approach to firmer, more resilient skin.