Round Lab Soybean Panthenol Sheet Mask: What to Know Before You Buy
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Sheet masks are a K-beauty staple, from Seoul drugstores to K-pop idols' backstage vlogs. Round Lab's Soybean Panthenol Sheet Mask comes from the brand's Soybean Panthenol line, which Round Lab positions around skin-barrier care.
What Round Lab says about it
According to Round Lab, this is a deeply hydrating, close-fitting microfiber sheet mask infused with black bean essence. The brand describes the sheets as biodegradable and the formula as vegan and unscented. Each pack is listed as 10 sheets of 0.9 fl. oz (27ml) each.
The key ingredients Round Lab highlights are:
- Panthenol – Round Lab notes that panthenol turns into vitamin B5 when absorbed into the skin and describes it as moisturizing and supporting the barrier. The ingredient list shows 510ppm.
- Black soybean (Rhynchosia Nulubilis) extract – the brand says these beans are grown in high-altitude regions and are rich in protein, B vitamins and other nutrients. The ingredient list shows Glycine Max (Soybean) Seed Extract at 1,176ppm.
- Ceramides, cholesterol and fatty acids – Round Lab calls these the three essential elements it added for more intensive moisture care. You can see Ceramide NP, Ceramide AP, cholesterol, oleic acid and stearic acid in the full list.
Round Lab also says the sheet has a double-layered structure designed to help the panthenol absorb more deeply, and that the mask hydrates without greasiness.
Where it fits in a routine
A basic K-beauty order is cleanse → toner → serum → cream → sunscreen (morning). Round Lab's own directions put this mask right after toner:
- Cleanse your face.
- Prep the skin with toner.
- Take the sheet out of the pouch and lay it evenly on your face, lining it up with your eyes, nose and lips.
- Remove it after 20 minutes and lightly pat in the remaining essence.
Follow with your usual cream. At 20 minutes, it fits an evening routine, perhaps while you watch a comeback stage.
Who it might suit
Round Lab describes this mask as hydrating without greasiness and says it is suitable even for sensitive skin. It could appeal to people who:
- want an unscented, vegan sheet mask;
- are already using other Soybean Panthenol products and want a matching mask;
- like the idea of a barrier-focused ingredient set (panthenol plus ceramides, cholesterol and fatty acids);
- want to try K-beauty sheet masks without spending much, since a 10-pack is listed at a low price.
What to check before you buy
- Price and shipping: the mask is listed at $3.99 on Round Lab's US store at the time of writing. Check the current price on the brand page and whether Round Lab ships to your country, plus any shipping fees.
- Pack size: the listing says 27ml per sheet and 10 pieces; confirm whether the price shown is for one sheet or the full pack when you check out.
- Ingredients: read the full ingredient list on the product page if you know you react to specific ingredients (it contains macadamia seed oil, for example).
- Patch test: even with products described as suitable for sensitive skin, try a small amount on your inner arm or jawline first and stop using it if you notice irritation.


Our take
Based on Round Lab's own description, the Soybean Panthenol Sheet Mask is a simple, unscented hydration step built around panthenol, black soybean extract and a ceramide-cholesterol-fatty acid mix. It sits after toner in an evening routine and is a low-cost way to try Round Lab's Soybean line. We have not tried it, so treat this as a guide, not a review.
See Soybean Panthenol Sheet Mask at Round Lab →
Information is based on Round Lab's product page as collected by KPOPORO. Details can change; please confirm on the brand page before buying.
