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Skin Journal

Evidence-led guides to the ingredients we formulate with. Written to be useful whether or not you buy anything from us: what each one does, what it doesn't, and how to use it.

8 guides Beef tallowPDRN & K-beautyPeptidesLashes & browsRoutine & skin over 50
Feel1 PDRN cream jar next to a plain glass dropper bottle of serum on a steamy bathroom shelf

Latest · pdrn

PDRN Serum vs PDRN Cream: Which Format Do You Need?

A practical guide to PDRN formats: when a serum makes more sense, when a cream does, how to layer them and what to check on the label.

18 September 2026 · 9 min read

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  1. 2 What Is PDRN? Korea's Salmon-DNA Skincare, Explained

PDRN & K-beauty

Salmon DNA explained: the clinic version, the jar version, and the honest difference.

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Woman in her late forties sitting on the edge of her bed at night pressing a pink gel cream into her cheek How to Use PDRN With Retinol: A Week-by-Week Routine A week-by-week plan for starting or restarting retinol with a PDRN cream as the buffer: how many nights, how to... 9 min read Woman in her early fifties taking a bathroom mirror selfie while touching a dry patch on her cheek PDRN Benefits for Skin: What It Helps With, Concern by Concern What PDRN can realistically do for dry, reactive, mature and retinoid-tired skin, how strong the evidence is for each, and... 9 min read Open jar of Feel1 PDRN Collagen Under-Eye Patches on a tiled bathroom shelf, chrome lid leaning behind it PDRN Eye Patches: What They Are and What They Actually Do PDRN eye patches hold salmon-derived Sodium DNA against the under-eye for twenty minutes. What that changes versus a cream, how... 9 min read A woman in her forties resting her head against a train window on an overcast day What Is PDRN? Korea's Salmon-DNA Skincare, Explained What PDRN is, how it is thought to work, and the honest difference between the clinic injection and the cream... 7 min read A woman waiting alone in a row of chairs in a clinic waiting area under fluorescent light Salmon Sperm Facial vs PDRN Cream at Home: Cost, Downtime, Results One costs several hundred per session and needs a clinic. The other lives on your shelf. The honest comparison, including... 5 min read A woman standing backlit in a hallway near a frosted glass front door Dark Circles, Hollows or Puffiness — Which One Do You Actually Have? Three different problems wear the same face. Two minutes in front of a mirror tells you which one you have. 4 min read A woman sitting on an unmade bed wearing hydrogel eye patches, photographed with direct flash Do Under-Eye Patches Actually Work? A Straight Answer For puffiness and dehydration, yes, within twenty minutes. For pigmentation and hollowing, no — and no patch will change that. 11 min read

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