Is the Biodance Bio-Collagen Real Deep Mask worth it?
This is the rare case where the Korean data and the American hype point the same way — it ranks first in its category on Korea's review platform too.
Check which version you are buying
Nothing we saw points to a regional difference in the listings, though we could not compare full ingredient lists. The visible variation is pack size — 4 sheets or 16. Do check which product you are adding to the cart: Biodance has extended the Real Deep Mask line with other versions, and the original is the collagen one.
What Koreans see when they shop for it
Public rating and ranking data as recorded on 2026-09-20, with the source next to each number. These platforms update continuously, so treat them as a snapshot. We do not reproduce Korean review text — the links further down take you to the originals.
- Glowpick rating
- 4.30 / 5 [1] 533 reviews
- Glowpick ranking
- #1 in anti-aging masks [1] also #1 within Biodance's own range
- Awards
- 4 Glowpick awards [1]
- Cumulative sales
- 165 million sheets [2] Figure published by Biodance on its own store page (as of 2026-09-20).
- Amazon US position
- Reported as a category best seller in face treatments and masks [3] Press coverage, not a live ranking.
How it is actually used in Korea
Written by us from the official usage instructions and formula — not taken from anyone's review text.
It is an overnight mask, not a 20-minute one
The official instruction is to leave it on overnight, or at minimum three hours. That is the single most important thing to get right: used for twenty minutes like a normal sheet mask, it simply does less.
The sheet turning clear is the timer
It goes on opaque and becomes transparent as it works, which is why people photograph it. Practically, it means you can see when it is spent instead of guessing.
The formula is a hydration stack, not a collagen transplant
Galactomyces ferment filtrate, glycerin, niacinamide and a low-molecular collagen extract do the work. In general, collagen molecules are too large to travel deep into skin from a mask, so read the result as intense surface hydration and temporary plumping — which is what it delivers.
Specs and ingredients
- Size
- 34 g per sheet, sold in packs of 4 [2]
- Korea retail price
- 20,000 KRW for 4 sheets [2] The official store lists a 19,000 KRW discounted price.
- Key ingredients
- Galactomyces ferment filtrate, glycerin, niacinamide, low-molecular collagen extract [2]
- Format
- Hydrogel sheet that turns transparent as it works [2]
- How long to wear
- Overnight, or at least 3 hours [2]
Where to buy it
We do not print store prices here — they move constantly and would be wrong the day after we published. Check the current price on the store page.
We earn a commission from purchases made through these links. It does not change what we recommend or what you pay.
Pack sizes differ between stores, so compare price per sheet rather than pack price.
Read the Korean reviews yourself
Original review pages, in Korean. Your browser will translate them well enough.
- Glowpick reviews (Korean) the rating and ranking above come from here
- Hwahae reviews (English version) Hwahae publishes an English page for this one
Questions people actually ask
How long do I actually leave it on?
Overnight is what the brand instructs, with three hours as the minimum. It is designed not to drip, which is what makes sleeping in it possible.
Does the collagen really absorb?
Collagen molecules are too large to travel deep into skin from a topical mask. Treat the result as strong surface hydration and short-term plumping — that is what the product reliably does, and it is why people use it the night before an event.
Is the 16-sheet box better value?
Usually yes on price per sheet, but check the current listing — store prices move week to week.
What we could not verify
Korean retail sites and Amazon block automated reading, so some numbers you see quoted elsewhere could not be confirmed at the source. We would rather list them than print a number we cannot stand behind.
- Hwahae rating and review count — the Korean page blocks automated reading.
- Olive Young rating and review count. Several pack variants share the product name, so we could not attribute numbers to one listing.
- Live Amazon rating and review count. Published figures range from roughly 15,000 to 42,000 depending on article date, so we link to the listing instead.
- The collagen molecular size. Biodance's Korean store, its US site and third-party pages give different figures, so we left the number out.
- Whether the Amazon listing is sold by an official brand store.
Sources
- Glowpick — Biodance Bio-Collagen Real Deep Mask (rating, review count, ranking, awards) — checked 2026-09-20
- Biodance official store — 4-sheet product page (size, price, ingredients, usage, cumulative sales) — checked 2026-09-20
- E! News — reported Amazon category best seller — checked 2026-09-20
Ratings, review counts and rankings belong to the platforms listed above and are cited as facts with links back to the source. Review text is not reproduced on this page.