01Verification record.
Seven checks, run before the first box boards a plane. Each mark below was earned, not assumed.
Run against our sourcing bar. Read what it takes to clear it.
02What it is.
A soothing sheet mask, blue by design. Each 32g sheet is soaked in an essence built on Derbiome PDRN 10K (polydeoxyribonucleotide, sodium DNA) at 1,000ppm and 99% purity, a ten-layer hyaluronic acid complex at 1,000ppm, polyglutamic acid, snail secretion filtrate and sodium guaiazulene sulfonate, the azulene that gives the sheet its colour. PYDERIN files it under its HYDROVUSTER line as the mask for skin irritated by external stimuli. Seven sheets to a box.
03What it does.
Calms skin that is running hot and puts water back into it. The maker lists three effects, soothing, barrier care and hydration, and the formula reads the same way: guaiazulene, centella asiatica, madecassoside, dipotassium glycyrrhizate and allantoin on the calming side; ten forms of hyaluronic acid, polyglutamic acid, beta-glucan and ectoin on the water side; ceramide NP, cholesterol and phytosphingosine for the barrier; PDRN, adenosine, copper tripeptide-1 and a run of signal peptides underneath. Ten to twenty minutes on clean skin, then press in what is left. The moments it is made for: after actives, after sun, after a flight, after a procedure, after a long day in makeup.
No clinical test is published for this mask, so none is claimed here. The Lift Cream's test is on Source Report 001; it belongs to that product, not this one.
04Where it's from.
Made in Seoul by the same maker as Drop 001, in Korea's clinical-aesthetic world. We order it directly from the manufacturer, so every box traces from the maker straight to import entry with no one in between.
05Where it sells at home.
Korean clinic and pharmacy channels. On October 27, 2026 Hailey Bieber posted herself in this blue mask from Korea; the post passed 2.1 million likes, and in the days after it the mask sold out in Seoul pharmacies.
06Why it's hard to find.
It has not been sold in America before. The U.S. launch is November 16, 2026, which is why this file is marked Preorder: you are charged at checkout and your box is guaranteed to reach you by December 16, 2026. If it cannot, every preorder hears from us first and can cancel for a full refund.
07What's in it.
Key ingredients: Derbiome PDRN 10K (sodium DNA) at 1,000ppm, 99% purity. 10-Hyaluron Complex at 1,000ppm. Polyglutamic acid. Snail secretion filtrate. Sodium guaiazulene sulfonate (blue azulene). Centella asiatica, madecassoside, asiaticoside. Niacinamide, ectoin, allantoin, adenosine. Ceramide NP, cholesterol. Copper tripeptide-1, acetyl hexapeptide-8 and five further peptides. Volume: 32g per sheet, 7 sheets.
Full ingredient list
Purified Water, Butylene Glycol, Niacinamide, 1,2-Hexanediol, Panthenol, Arginine, Carbomer, Dipropylene Glycol, Sodium Polyacrylate, Sodium Hyaluronate (502ppm), Ethylhexylglycerin, Allantoin, Adenosine, Disodium EDTA, Xanthan Gum, Dipotassium Glycyrrhizate, Ectoin, Snail Secretion Filtrate, Sodium Guaiazulene Sulfonate, Saccharide Isomerate, Pentylene Glycol, Glycerin, Shea Butter, Caprylic/Capric Triglyceride, Centella Asiatica Extract, Olive Oil, Sodium DNA (10ppm), Hydrogenated Lecithin, Squalane, Hydroxyphenyl Propamidobenzoic Acid, Dimethylsilanol Hyaluronate (1.5ppm), Hyaluronic Acid (1.5ppm), Hydrolyzed Hyaluronic Acid (1.5ppm), Hydrolyzed Sodium Hyaluronate (1.5ppm), Houttuynia Cordata Extract, Polyglutamic Acid, Potassium Hyaluronate (1ppm), Hydroxypropyltrimonium Hyaluronate (0.8ppm), Sodium Hyaluronate Crosspolymer (0.8ppm), Citric Acid, Sodium Citrate, Sodium Hyaluronate Dimethylsilanol (0.5ppm), Beta-Glucan, Sodium Acetylated Hyaluronate (0.4ppm), Ascorbyl Palmitate, Ceramide NP, Cholesterol, Copper Tripeptide-1, Phytosphingosine, Acetyl Hexapeptide-8, Hexapeptide-9, Nonapeptide-1, Palmitoyl Pentapeptide-4, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Asiaticoside, Madecassoside, Asiatic Acid, Madecassic Acid.
Two PDRN figures appear on the maker's page and both are printed here: Derbiome PDRN 10K at 1,000ppm is the complex the maker names; Sodium DNA at 10ppm is the line in the INCI. We have asked PYDERIN to reconcile the two and will update this file when they do.
08Chain of custody.
The maker
Sealed case
Air freight
Direct from the maker
U.S. customs
Entry filed + cleared
Your shelf
Preorders guaranteed by December 16
Four stops, all of them accountable. No middlemen at any step. Stops 02 to 04 are scheduled, not yet stamped; this file updates when the boxes clear.
09The paperwork.
The purity number on this page belongs to the PDRN raw material PYDERIN uses across its line, this mask included, and it is not ours to assert, so we do not ask you to take it on faith. Pyderin publishes the documents behind it on its own site, which is rare enough in this category to be worth showing you. Both are below exactly as the maker publishes them, commercial detail obscured by Pyderin, the material figures left legible.
The first states the country of origin of the raw material: the Republic of Korea. The second is the one that decides what you are actually buying. It records DNA (PDRN) at 99% or higher, confirmed. It gives an average molecular weight of 30 to 200 kDa, which is 50 to 300 base pairs, measured at 150 bp. And it gives a UV absorbance ratio at 260/280nm of 1.78, inside the 1.7 to 1.9 band that indicates you are looking at DNA rather than leftover protein.
Pyderin's own line for this is that it discloses all the data that others cannot reveal. That is the maker's claim and we are quoting it, not certifying it. What we will say from our own side of the table is that nobody else we have sourced from has handed us paperwork like this without being asked twice.
10On the record.
The post that emptied Seoul's pharmacies, reproduced for the record. It is her photograph and her caption; the mask is the subject of this file.
Filed for the record.
Source Report No. 002 · Seoul → San Luis Obispo