Quick answer: Japan does not really do PDRN — and that is not an oversight. While Korean skincare built its "salmon DNA" trend around PDRN (polydeoxyribonucleotide), Japanese laboratories took a different molecule from the very same fish: proteoglycan, a moisture-binding biopolymer extracted from salmon nasal cartilage in Hokkaido. Combine it with Japan's long tradition of placenta extracts and fermentation, and you get the Japanese answer to the PDRN craze — quieter, but with deep roots.
I am Natalia Tsujimoto, and I write from Kobe, where I source every product in our store from Japanese pharmacies, salons and beauty wholesalers. Lately, one question keeps arriving in my inbox in three languages: "Do you have PDRN?" So let me give you the honest, slightly surprising answer — and show you what Japan reaches for instead.
What Is PDRN, and Why Is Everyone Talking About It?
PDRN stands for polydeoxyribonucleotide — fragments of DNA, most famously sourced from salmon. It rose to fame through Korean dermatology clinics and then jumped into K-beauty serums, where "salmon DNA" became one of the most searched skincare phrases of the past two years. The promise: support for the skin's own repair processes and a plumper, healthier look.
Whatever you think of the marketing, the trend did something useful: it made millions of people curious about repair-focused skincare — moving beyond simple hydration toward ingredients associated with skin resilience. If you are comparing beauty philosophies, my article on Japanese vs Korean skincare explains why the two countries so often take different roads to the same destination.
So Does Japan Use PDRN?
Here is the honest part: PDRN skincare is overwhelmingly a Korean category. The strongest PDRN serums, and nearly all the buzz, come from Korean brands — and at Tsujimoto Market we deliberately stock only Japanese products, so we do not carry them. If you want a classic Korean PDRN serum, I would rather tell you that than sell you a substitute under a misleading label.
But Japan has been working with salmon for skin longer than the PDRN trend has existed — just with a different part of the fish, and a different molecule entirely.
What Makes the Japanese Approach Different
Proteoglycan: the other salmon molecule
Proteoglycan is a moisture-binding biopolymer traditionally extracted in Japan from salmon nasal cartilage, with Hokkaido as its heartland. Where PDRN is about DNA fragments, proteoglycan is about water: it holds large amounts of moisture at the skin's surface, supporting bounce, firmness and that well-rested look Japanese skincare prizes. Some brands report that, gram for gram, it retains moisture more effectively than hyaluronic acid — a bold claim, but it tells you how seriously Japan takes this ingredient. If hydration science interests you, my Japanese hyaluronic acid guide makes a good companion read.
Placenta extract: Japan's veteran repair ingredient
Long before "skin barrier repair" was a hashtag, Japanese salons and pharmacies were using animal placenta extract — a concentrated source of amino acids and nutrients — in serums and drinkable beauty supplements. It remains one of the most distinctive categories in the Japanese beauty aisle; I cover the supplement side in my guide to Japanese placenta supplements. One important note: placenta extracts are of animal origin (typically horse or pig), which matters for some customers — I flag this clearly on every relevant product page.
Fermentation: the quiet Japanese superpower
Japan's beauty industry grew up next to its sake and koji culture, and fermentation remains its signature move: fermented actives are broken into smaller, more available components. You will see this logic in the fermented placenta serum below — the fermentation step is there to increase the bioavailability of amino acids, vitamins and minerals.
The Products: Japan's Repair Shelf, Verified
Every product below is in our catalog right now, shipped from Japan. As always, I describe only what the manufacturers actually state — no invented percentages, no borrowed claims.
Clueid Proteoglycan Essence — the accessible entry point
Part of Clueid's Pure Concentrate series, this 30 ml essence is built around a single ingredient: proteoglycan from Hokkaido salmon. The brand describes it as retaining moisture more effectively than hyaluronic acid on a like-for-like basis, supporting firmness, radiance and elasticity, and behaving as an EGF-like component. The formula is deliberately bare: no fragrance, dyes, alcohol, mineral oils, parabens or surfactants. At $23.95, it is the easiest way to try Japan's answer to the salmon trend — see the Clueid Proteoglycan Essence.
La Mente Proteoglycan — the professional concentrate
La Mente's professional-use concentrate takes the same idea to salon scale: water-soluble proteoglycan from salmon nasal cartilage in a deliberately short base — water, humectant, proteoglycan, preservative — in a generous 100 ml bottle. You can apply it neat as a serum or blend a few drops into your existing lotion or cream, which is exactly how Japanese salons use it. See the La Mente Proteoglycan concentrate.
Clueid W Placenta Essence — double placenta, single focus
From the same Pure Concentrate series, this essence combines two placenta extracts — from horses raised in Hokkaido and pigs from Tokachi — as a concentrated source of amino acids and nutrients, supporting deep hydration and a clearer-looking complexion. Like its proteoglycan sibling, it skips synthetic fragrance, dyes, alcohol, mineral oils, parabens and surfactants. Please note the animal origin if that affects your choices. See the Clueid W Placenta Essence.
La Mente Fermented Placenta — where fermentation meets repair
The most "Japanese" product in this lineup: a professional-grade 100 ml serum in which the placenta extract is fermented to increase the bioavailability of its amino acids, vitamins and minerals, aimed at visible anti-ageing, brightening and deep hydration. A clear note for Muslim customers: the extract is of porcine or equine origin and may not be suitable for those observing Halal requirements. See the La Mente Fermented Placenta serum.
PDRN vs Proteoglycan vs Placenta: An Honest Comparison
| Aspect | PDRN (Korean trend) | Proteoglycan (Japan) | Placenta extract (Japan) |
|---|---|---|---|
| Source | Salmon/trout DNA fragments | Salmon nasal cartilage (Hokkaido) | Horse or pig placenta |
| Core idea | Support skin's repair processes | Bind moisture; support firmness and elasticity | Deliver amino acids and nutrients |
| Where you'll find it | K-beauty serums, Korean clinics | Japanese essences and concentrates | Japanese serums, salon lines, drinkable supplements |
| Character | Trend-driven, fast-moving | Quiet, regional, ingredient-led | Traditional, decades of use |
These are different molecules doing different jobs — I will not pretend proteoglycan "is" PDRN. What they share is a philosophy: skincare aimed at resilience, not just surface hydration, and a certain fondness for salmon.
How to Build a Japanese "Repair" Routine
Keep it simple. Cleanse gently, then apply a proteoglycan or placenta essence to damp skin as your treatment step, seal it with your usual moisturizer, and never skip morning sunscreen — repair-focused care makes the most sense on skin that is not being freshly stressed by UV. If you enjoy layering, the concentrate format is wonderfully flexible: two or three drops of the La Mente concentrate disappear happily into any cream. For more single-ingredient Japanese treatments, browse our Japanese essence collection or the wider anti-aging line-up, and see my guide to the best Japanese essences for where these fit in a full routine.
Frequently Asked Questions
Is proteoglycan the same as PDRN?
No. PDRN consists of DNA fragments, usually from salmon milt; proteoglycan is a moisture-binding protein-sugar molecule from salmon nasal cartilage. They come from the same fish but are entirely different molecules with different roles — PDRN is associated with repair support, proteoglycan with moisture retention, firmness and elasticity.
Does Japanese skincare have PDRN products?
Very few, and none with the profile of the Korean leaders — PDRN remains a Korean-led category. Japan's repair tradition runs instead through proteoglycan, placenta extracts and fermented actives, which is what you will find in Japanese pharmacies and salons.
Is proteoglycan better than hyaluronic acid?
They are teammates, not rivals. Some Japanese brands report that proteoglycan retains moisture more effectively than hyaluronic acid gram for gram, but a good routine happily uses both — a hyaluronic lotion for volume hydration, a proteoglycan essence as the treatment step.
Are placenta skincare products suitable for everyone?
The extracts used in Japanese cosmetics are of animal origin — typically horse or pig — so they may not suit vegetarians, vegans or customers observing Halal requirements. I state the origin on each product page so you can decide with full information.
Where is Japanese proteoglycan made?
The proteoglycan in the products above is extracted from salmon nasal cartilage in Hokkaido, northern Japan — the region most associated with this ingredient. Both Clueid essences specify Hokkaido sourcing directly on their labels.
The Bottom Line
If the PDRN wave brought you here, welcome — you are exactly the kind of ingredient-curious person Japanese skincare was made for. Japan's answer is not a copy of the Korean trend but a parallel tradition: proteoglycan from Hokkaido salmon for moisture and bounce, placenta extracts for amino-acid nourishment, and fermentation to make it all work harder. Start small with the Clueid Proteoglycan Essence, and if your skin falls in love, the professional concentrates will be waiting.
Warm regards from Kobe,
Natalia Tsujimoto