Most cleansers are just soap with a fancy name. Round Lab swapped plain water for deep-sea mineral water from Ulleungdo. That’s not marketing fluff — it’s 18 minerals that actually help your barrier instead of stripping it.
The weird part? It cleanses like a gel but hydrates like a toner. No tight face after rinsing.
It’s a $16 foaming cleanser. The claim: “barrier-strengthening mineral water.” I rolled my eyes — then bought it.
Deep-sea base
Ulleungdo water is alkaline, so it balances pH without burning your face off.
Photo: Kaeme / Unsplash
Three things do the heavy lifting here. The mineral water is the star, but the surfactants are smart — gentle enough for reactive skin, strong enough to remove sunscreen.
- Deep-sea water (Ulleungdo): 18 minerals that soothe and reinforce barrier
- Cocamidopropyl betaine: Coconut-derived surfactant that cleans without stripping
- Trehalose: Sugar that locks in moisture post-wash
- Panthenol: Calms redness in under 30 seconds
Photo: Harper Sunday / Unsplash
Squeezes out like a thick lotion. Lathers up with a few drops of water — feels like a cloud on your face. Rinses off in 10 seconds flat. No residue.
Week 2: My jaw literally felt less tight after washing. That never happens with gel cleansers. Unexpected win.
Photo: sarah b / Unsplash
My skin stopped feeling parched after cleansing. Redness around my nose faded slightly — not gone, but calmer. Texture stayed the same, which is fine because it wasn’t broken.
Photo: Greg Rakozy / Unsplash
This is the cleanser your barrier didn’t know it needed. Mineral water isn’t a gimmick — it’s the whole point.