COSRX 5 PDRN Hyaluronic Acid Vital Hydrating Hydrogel Mask: Weekend Reset for Tired Skin

COSRX added PDRN (polydeoxyribonucleotide, the salmon DNA-derived regenerative ingredient) to their mask line, combining it with hyaluronic acid in a hydrogel format. Hydrogel masks are the K-beauty upgrade over paper sheet masks: they're gel-based, hold onto essence longer, conform better to facial contours, and feel cooling on application. This 3-pack is the standard treatment frequency.

PDRN in sheet masks is a newer trend. COSRX isn't trying to be Rejuran's topical equivalent, but they're extending the ingredient's visibility to accessible formats. At $30 for 3 masks ($10 each), pricing is premium for K-beauty sheet masks but reasonable for PDRN-containing products. These are best used as pre-event treatments, post-travel recovery, or weekly facial reset rather than daily masking.

What It Does

PDRN signals skin cells via adenosine A2A receptors to support regeneration and calm inflammation. Hyaluronic acid pulls water into the skin during the mask wear time. The hydrogel substrate acts as both a reservoir (holds more essence than paper) and an occlusive layer (traps actives against skin). After a 20 to 30 minute session, skin looks visibly plumper and more awake. Not a standalone treatment, but a strong reset step.

Who It's For

• Pre-event or special occasion prep: Plumps skin visibly in 30 minutes.
• Post-travel recovery: Offsets dehydration from flights.
• Tired-looking skin: Regenerative PDRN support during downtime.
• Post-procedure (1-2 weeks out): Gentle repair layer during recovery.
• COSRX routine fans: Fits alongside the brand's ecosystem.

Key Specs

• Volume: 34g x 3 pieces
• Price: $30.00
• Hero ingredients: PDRN (salmon-derived), hyaluronic acid
• Format: hydrogel (not paper)
• Fragrance: minimal
• Not vegan (PDRN is animal-derived)

How to Use

PM, weekly or before events. Cleanse thoroughly and pat dry. Remove mask from packet, separate the two pieces (upper and lower face), apply to clean dry skin. Smooth to eliminate air bubbles. Leave on 20 to 30 minutes. Remove and pat in any remaining essence. Don't rinse. Follow with moisturizer to lock in. Dispose of the used mask.

FAQ

Is the PDRN in this mask as effective as Rejuran?

Different concentration and molecular weight. Rejuran's flagship is converted low-molecular-weight PDRN at treatment concentrations in a leave-on serum. This mask uses PDRN at lower concentration in a sheet format with limited contact time. Helpful for a boost, not a replacement for dedicated PDRN treatment products.

How often should I use these?

Once a week is the typical cadence. Pre-event or during a stress week, 2 to 3 times. Daily use isn't necessary and wastes product.

Can I use this after microneedling or a laser?

Wait until any active wound has closed (typically 3 to 5 days post-procedure) before using any sheet mask. Consult your dermatologist for specific post-procedure product guidance.

Will it break me out?

Low risk. COSRX formulations are generally safe for acne-prone skin. That said, hydrogel masks with lots of essence can feel heavy for very oily skin; reduce wear time to 15 minutes if so.

Why 3 masks instead of more?

Higher-actives masks tend to come in smaller packs because daily use isn't intended. 3 masks = 3 weekly treatments. For everyday masking, COSRX and other brands offer paper sheet mask packs of 10.

Related Products

Pair with the COSRX routine: COSRX Hyaluronic Acid Intensive Cream as post-mask sealing. Explore Korean sheet masks for everyday use.

Shop COSRX or Korean sheet masks.