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Biodance

Biodance Refreshing Sea Kelp Real Deep Mask

Ingredient analysis and how the ad lines read

Read on 2026-09-16

What is this product?

A 34 g hydrogel sheet mask sold for overnight wear, built on a kelp ferment filtrate that the brand discloses at 100,940ppm, just over 10 percent, in second position right after water. The 43 entry list carries no fragrance, no essential oil and no drying alcohol, and adds centella extract and madecassoside for calming, which is also what reported use data puts first. The statutory block declares no functional cosmetic filing, and the list agrees: there is no notified whitening or wrinkle active in it. Two things do not hold up. The brand sells 5 percent deep sea water while its own statutory block prints 5,096ppm, about half a percent. And the global page lists four main ingredients that appear nowhere in the product's own list, then answers a question about collagen absorption for a mask that contains no collagen.

What makes it different?

Discloses a real concentration for its headline ingredient and the number is high enough to matter, just over 10 percent, printed in the statutory block rather than in marketing. A heavy 34 g hydrogel sheet built for long wear, with calming entries that match what users report, and no fragrance, essential oil or drying alcohol anywhere in 43 entries.

What is in it?

The full ingredient list as the brand publishes it, in the printed order. Each name links to what we know about that ingredient.

Ingredients with no mark are ones we found nothing notable about, and when marks overlap on one ingredient we show the caution first.

We could not place these in the list above: 폴리글리세릴-10라우레이트

Did the ad claims hold up?

We checked 20 lines this product advertises against the ingredient list and public documents. One of them holds up. The rest are only partly right or have nothing behind them.

Claims translated from Korean, originals preserved.

backed by evidence1

  • POWERFUL SOOTHING BENEFITS OF SEA KELP 10%

partly backed3

  • 1 night 1 pack! Attaching soothing essence 34g
    Korean original

    1밤 1팩! 붙이는 진정 에센스 34g

  • Contains sea kelp to soothe and refine the skin, it also helps restore the skin's oil-water balance. Especially beneficial for oily and acne-prone skin.
  • With this hydro-gel mask, redness and uneven texture are calmed, leaving the skin smooth and refined.

no evidence16

  • 5% DEEP SEA WATER
  • It is free of allergens and 19 other harsh, controversial ingredients.
  • Low-Molecular Weight Collagen Peptide
  • Galactomyces
  • Oligo Hyaluronic Acid
  • Niacinamide
  • 100% agreed their pore condition improved
  • 95% agreed their skin felt moisturized
  • 90% agreed their skin was brighter
  • 100% agreed their skin redness improved
  • Bio Collagen Real Deep Mask is a hydrogel mask molded with essence to provide hydration.
  • Collagen skincare products are effective at a molecular weight of 500 daltons or less. Among many face masks, Biodance stands out with an impressively small particle size of 243 daltons
  • It is clinically proven that skin moisturizing effects (increased by 166%) continues even after 150 hours.
  • All ingredients are EWG-safe and free from 25 common allergy-causing substances. Our product has also passed hypoallergenic testing, making it safe for overnight use.
  • Safe for pregnancy and breastfeeding, though consult your doctor if concerned
  • Firming

Each line is quoted as the brand published it, and each one was read on its own against the ingredient list and the documents the brand publishes.

How we read these lines