Does PDRN Serum Work? What 3 Studies and 736 Reviews Show

Review-analysis guide: 736 customer reviews read on Ulta Beauty and YesStyle (October 14, 2026), sorted and counted by us; product details from brand and retailer pages checked October 14, 2026. We paraphrase patterns and never copy reviews. Texture, scent and results are described by the customers who used it, counted by us.

By The Beauty Read · Sources checked October 14, 2026 · Updated October 15, 2026 · AI-assisted research and editing · Contains Amazon affiliate links

Does PDRN serum work? The topical studies so far are small, four-week trials of eye creams and one cream, run with company ties, and neither Medicube nor Anua says how much PDRN its serum contains. We screened 736 customer reviews on Ulta and YesStyle and retained 550 for theme counts: 249 from Medicube listings and 301 for Anua. Hydration and glow are common themes, but the Medicube listings differ in formula information, so their combined results cannot establish what the linked Salmon DNA version will do. These reviews do not support injection-like effects.

What PDRN is, and what a serum label is selling

PDRN, short for polydeoxyribonucleotide, is a mix of DNA fragments, traditionally purified from salmon or trout milt and listed on cosmetic labels as sodium DNA. Plant and fermented versions sold as vegan or rose PDRN exist too. Its reputation comes from the clinic: PDRN and related polynucleotides are injected into the skin, and that is where most of the clinical evidence sits. [D1]

A salmon DNA serum makes a different promise, because the DNA has to get through the skin's surface on its own. Dermatology Times put it plainly this year: the injectable science is real, but most brands disclose neither fragment size nor delivery data for their topical products. The full formula includes hydrators, niacinamide and peptides, but these studies and reviews do not isolate which ingredient caused a change. PDRN’s individual effect in the two serums remains unverified. Injectable PDRN is not FDA-approved for cosmetic use in the US, so the serum shelf is where most American shoppers meet the ingredient. [D1]

Does PDRN serum work? Three small studies, read closely

We found three published topical trials, and none tested a serum you can buy. One Chinese research group ran two 28-day, split-face eye-cream studies: one against a placebo in 33 women, reported in 2025, and one against 0.1 percent retinol in 31 women, published in PLOS ONE in July 2026. The PDRN side came out ahead in both, including about twice retinol's gain in ultrasound skin thickness and a 20 to 23 percent drop in crow's-feet area and number, against 6 to 7 percent for retinol. [J1] [J2]

The fine print matters. Both trials list company affiliations for several authors. In the PLOS ONE trial, the PDRN came from a supplier, every participant was a woman aged 35 to 55 with sensitive skin, and the authors call 28 days short and say early ultrasound gains may partly reflect hydration. Its one check of penetration in living skin used a single volunteer. [J1] [J2]

A third study put a peony-derived PDRN at 1 percent in a cream on 10 Korean adults for four weeks. Elasticity around the eyes rose about 4 percent; every author works for the company developing the ingredient, and randomization and blinding are not described. Together they are promising signals for specific formulas. None of them tells you what a one-ounce bottle of PDRN serum will do on your face. [J3]

Rose PDRN vs salmon PDRN, and what two labels leave out

Medicube PDRN Pink Peptide Serum , in the Salmon DNA version we link on Amazon, lists sodium DNA eighth, right after niacinamide and 1,2-hexanediol, with milt extract 14th and salmon egg extract near the end. Ulta's listing under the same name says Salmon PDRN in its feature text but prints another list: rose extract 29th, sodium DNA 30th, no milt at all. That list is associated with the Rose PDRN version Medicube also sells. The listing discrepancy does not establish which formula each reviewer used, so check the exact version before buying. [A1] [U1]

Anua PDRN Hyaluronic Acid Capsule 100 Serum lists sodium DNA 21st of 34, after adenosine and several plant extracts, and lists eight forms of hyaluronic acid, six of them after it. Anua says its PDRN comes from salmon and does not explain the 100. Neither brand gives an amount or a fragment size, and under US labeling rules ingredients above 1 percent run in descending order while the rest may appear in any order, so these positions say little about dose. [A2] [AN1] [L1]

The brands' own figures are thin as well. Ulta's Medicube page quotes an 11.79 percent improvement in pigmentation area and 11.13 percent more gloss at two weeks, and Anua's page reports hydration readings up 8.93 and 24.64 percent after one use. Neither page gives a study size or method. [U1] [AN1]

How we read 736 reviews of the two serums

This half of the guide is built from what customers report. On October 14, 2026, we read every review on Ulta's two listings, 83 for Medicube and 208 for Anua, and the newest 225 and 220 on YesStyle, where about three in four were written in Spanish, Italian, French, Portuguese, Arabic, Russian, Polish or another language and read in the original. That is 736 reviews across every star level. [R-ULTA-M] [R-ULTA-A] [R-YS-M] [R-YS-A]

We set 186 aside: 61 Anua reviews at Ulta that say the serum was provided for a promotion, nine duplicated texts, 18 written before use, nine about a purchase for someone else, six about shipping, the store or an order that never arrived, and 83 with no usable detail. The 550 that remained, 249 for Medicube and 301 for Anua, were sorted by skin type, praise, complaint, feel, scent, routine and timing. We never copy review text, and reviews or ratings on Amazon are not used anywhere on this site. [R-ULTA-A] [R-ULTA-M] [R-YS-M] [R-YS-A]

One caution about Anua's Ulta page: 88 of its 208 reviews went up in a single week of July 2025, most of them disclosing a brand promotion. We excluded the 54 that say so and six duplicates, and kept the 28 that say nothing either way. A later run of 23 four- and five-star reviews in September 2026 carries no disclosure either; the 21 with usable detail stay in the count. [R-ULTA-A]

What it feels like and when it shows, according to the reviews

Texture is where the two part ways. Anua reviewers keep using the word watery: 23 mention it, and seven say it drips, runs or is hard to apply. The trade is speed, since about two in five Anua reviews say it absorbs fast and leaves nothing sticky. Medicube's texture draws fewer comments: nearly three in ten of its reviews call it light and quick to sink in, four found it tacky for a while, and two found it too rich for oily skin. [R-ULTA-A] [R-YS-A] [R-ULTA-M] [R-YS-M]

Scent follows the labels. Medicube lists fragrance, and its reviewers describe something light, rosy or sweet: 14 liked it, six did not, one wiped it straight off, and one Ulta reviewer caught a faint omega-3 note. Anua lists no fragrance, and 17 of the 18 Anua reviewers who mention scent say there is none to notice. [R-ULTA-M] [R-YS-M] [R-ULTA-A] [R-YS-A] [A1] [A2]

Only 78 of the 550 retained reviews name a timeframe; they cannot establish a typical time to results. Of those 78 reviewers, 31 saw hydration or glow from the first use to a few days in, and 21 put smoother or calmer skin at one to three weeks. The 26 writing from a month or more are mostly Medicube users who stayed with it, several describing fading acne marks and a more even tone. [R-YS-M] [R-ULTA-M] [R-YS-A] [R-ULTA-A]

Where the PDRN serum reviews push back

The most common complaint is the one a skeptic would predict. About one in 13 Medicube reviews and one in 12 Anua reviews say the serum moisturized and did little else, call it just another hyaluronic acid serum, or doubt there is enough PDRN in the bottle to matter. A handful who hoped for softer expression lines say they saw no change there. [R-YS-M] [R-YS-A] [R-ULTA-M] [R-ULTA-A]

Breakouts split by product and by store. Roughly one in 20 Medicube reviews report breakouts, a rash or what reviewers call fungal acne, but the share is one in eight at Ulta, where four of the nine name acne-prone skin, against one in 45 on YesStyle. Ulta's Medicube reviews are harsher overall too, with 16 of 83 at one or two stars against four of 225 on YesStyle. Different shoppers, different routines and possibly a different formula sit behind that gap, and reviews alone cannot separate them. Anua's breakout share is about one in 40. [R-ULTA-M] [R-YS-M] [U1] [R-ULTA-A] [R-YS-A]

Eight of the 249 Medicube-listing reviews and three of the 301 Anua reviews describe redness, itching or a reaction; 21 Medicube and 30 Anua reviewers say their skin, often sensitive, had no trouble. These selected-review counts do not estimate the chance of a reaction or establish that either serum is safer for sensitive skin. Medicube’s formula uncertainty also limits the comparison. [R-ULTA-M] [R-YS-M] [R-ULTA-A] [R-YS-A]

Medicube or Anua: which one to buy, or whether to skip both

Consider the Medicube Salmon DNA option only after checking its exact ingredient list and fragrance against your preferences. Across the combined Medicube-listing reviews, about two in five mention glow and about 1 in 12 mention fading acne marks or a more even tone. Because the listings may cover different formulas, those shares cannot establish the benefits or reaction risk of the Salmon DNA version linked here. [R-YS-M] [R-ULTA-M] [A1]

Pick Anua PDRN Hyaluronic Acid Capsule 100 Serum if you want plain, fast hydration under moisturizer or makeup with no added fragrance; nearly two in three retained Anua reviews mention hydration. Review counts cannot predict whether your skin will tolerate it. Skip both if you already own a hyaluronic acid serum you like, because that is mostly what the reviews describe, or if you hoped a bottle would match a clinic injection. Nothing in these studies or reviews supports that. [R-YS-A] [R-ULTA-A] [D1]

Keep reading

• How to read skincare labels: what 72%, 10% and 10,000 ppm mean
• How to read K-beauty reviews before you buy
• Medicube Zero Pore Pad 2.0 review: what 547 customer reviews say
• Korean moisturizer for dry skin: three ceramide creams compared

Frequently asked questions

Is PDRN in skincare really salmon sperm?

Often, yes. Traditional PDRN is purified from salmon or trout milt, which is the fish's sperm, and labels list it as sodium DNA; Medicube's Salmon DNA version also lists milt extract. Plant and fermented versions sold as vegan or rose PDRN exist too, and the only plant-PDRN trial we found was a 10-person study run by the company making it.

Is PDRN the same as PN?

They are related but not the same name on a label. Both are DNA fragments: PN stands for polynucleotide and PDRN for polydeoxyribonucleotide, and both are used in skin injections. Most of the clinical evidence for either comes from injections; the topical trials we found used specific eye creams or a cream, not the two serums compared here.

Can a PDRN serum replace an injection?

No study we found says so. The injection evidence comes from putting DNA fragments under the skin, while a serum has to get through the surface first, and neither brand here discloses fragment size or amount. Reviewers of both serums mostly report hydration and glow, and about one in 12 or 13 saw no change beyond that.

Which is better for sensitive skin, Medicube or Anua?

The reviews do not establish which is safer for sensitive skin. Anua lists no added fragrance; the linked Medicube option lists fragrance. Irritation was mentioned in 3 of 301 retained Anua reviews and 8 of 249 Medicube-listing reviews, but these are selected-review mentions, not reaction rates. The Medicube set also has formula-version uncertainty. Follow the exact product’s directions and stop use if irritation develops.

How long does it take to see results from these serums?

Only 78 of the 550 retained reviews name a timeframe. Of that subgroup, 31 mention hydration or glow from the first use to a few days, and 21 place smoother or calmer skin at one to three weeks. Those writing from a month or more are mostly Medicube-listing reviewers, several describing fading acne marks. This small subgroup cannot establish a typical timeline, especially for an uncertain Medicube formula.