EGF, PDRN, or Kojic Acid? Your Guide to Sungboon Editor's Ampoule Trio

Walk into any conversation about trending K-beauty actives right now and three ingredients keep coming up: EGF, PDRN, and kojic acid. Sungboon Editor built an entire ampoule line around them — often sold together as the brand's Hometox Trio — but each one is formulated to do something completely different for your skin. If you've been staring at these bottles wondering which one (or ones) actually belong in your routine, here's the breakdown.

Silk Peptide EGF Ampoule: For Firmness, Fine Lines, and Elasticity

What it is: This ampoule is built around EGF (epidermal growth factor), a cell-signaling peptide that was actually the subject of a Nobel Prize-winning discovery back in 1986. In skincare, it's included for its long-established ability to support skin renewal and repair. Sungboon Editor pairs it with a complex of 13 additional peptides, silk extract, collagen threads, and 24K gold.

What it's for: Firmness, elasticity, and visible fine lines. This is the anti-aging pick of the trio.

How it benefits skin: EGF and the peptide complex work together to support collagen synthesis and encourage cell turnover, which shows up over time as firmer, bouncier-looking skin and smoother texture. The silk extract forms a lightweight, breathable film on the skin that helps prevent water loss, so you get a hydration boost alongside the firming effect. The gold threads dissolve on contact, releasing concentrated actives right where you apply them, and niacinamide in the base helps even out tone as a secondary benefit. Think of this ampoule as your "structure and support" step — it's the one to reach for if sagging, crepiness, or the first fine lines are your main concern.

PDRN Ampoule: For Radiance and Plumping Hydration

What it is: PDRN stands for polydeoxyribonucleotide, a salmon-derived DNA fragment that's become one of the most buzzed-about ingredients in Korean skincare over the past couple of years. Sungboon Editor's PDRN ampoule combines it with Vitamin B12, low-molecular-weight (200Da) collagen, elastin, and a blend of up to 8–10 types of hyaluronic acid.

What it's for: Dullness, dehydration, and loss of bounce. This is the glow-and-plump pick of the trio.

How it benefits skin: PDRN is prized for supporting skin regeneration and repair at a cellular level, which translates into a healthier-looking, more resilient complexion over time. Vitamin B12 works alongside it to support renewed-looking radiance and improve the appearance of firmness. The multi-molecular-weight hyaluronic acid blend hydrates at different layers of the skin for that "bouncy," plumped-up look K-beauty fans chase, while the added collagen and elastin support fullness, especially in areas that look tired or deflated. If your skin has been looking flat, dull, or dehydrated rather than fine-lined, this is the ampoule that addresses that directly.

Kojic Acid Ampoule: For Dark Spots and Uneven Tone

What it is: Kojic acid is a well-established brightening ingredient derived from fermented rice, and it's the active at the center of this ampoule, backed up by turmeric root water, niacinamide, PHA, and Vitamin C.

What it's for: Dark spots, post-blemish marks, and uneven tone. This is the brightening pick of the trio.

How it benefits skin: Kojic acid works by inhibiting melanin production, which over time helps fade the appearance of dark spots, discoloration, and post-acne marks. Turmeric root extract is included to soothe the skin while also helping to prevent new discoloration from forming, and niacinamide reinforces the brightening effect while supporting overall clarity. The gentle PHA in the formula provides mild surface exfoliation, sloughing off dull cells and refining texture without the irritation that stronger acids can cause. If uneven tone, sun spots, or lingering marks from old breakouts are your priority, this is the one to build your routine around.

So Which One Do You Need?

Here's the short version:

• Fine lines, sagging, loss of firmness → Silk Peptide EGF Ampoule
• Dullness, dehydration, lack of bounce → PDRN Ampoule
• Dark spots, uneven tone, post-blemish marks → Kojic Acid Ampoule

The good news is you don't have to choose just one. Because each ampoule targets a distinct concern rather than overlapping, many people in the Sungboon Editor community rotate between them or use different ones on different days depending on what their skin needs — firming one day, hydrating the next, brightening as needed. That's actually the idea behind the Hometox Trio: three focused treatments instead of one ampoule trying to do everything at once.

Shop the Sungboon Editor Ampoule Line at Seoulma Skincare

We carry Sungboon Editor's EGF, PDRN, and Kojic Acid ampoules at Seoulma Skincare, so you can pick the one that matches your current skin concern or build out the full trio for a rotating routine. As always, patch test any new active before working it into your regular routine, and pair brightening steps like the Kojic Acid Ampoule with daily SPF to protect your results.

Not sure which ampoule is right for you? Reach out to our team — we're happy to help you figure out where to start.