The science
The evidence for this pad belongs to its humectants and soothers, and there is a fair amount of it. Panthenol, present sixth here, converts to pantothenic acid in the skin and has controlled data for improving hydration, reducing transepidermal water loss and shortening the recovery of irritated skin, which is why it appears in most post-procedure and barrier products. Allantoin has a long record as a low-irritation soothing agent and keratolytic at higher doses, though at a toner concentration its contribution is comfort rather than exfoliation. The hyaluronic acid story is the most interesting formulation choice: four fractions, from a high-molecular-weight sodium hyaluronate and a crosslinked polymer that sit on the surface and hold water there, down to a hydrolyzed fraction small enough to penetrate the upper stratum corneum, and studies comparing molecular weights find that the mix provides both the immediate surface plumping and the longer hydration a single weight cannot. Glycerin, second on the list, remains the humectant with the strongest trial evidence for barrier improvement with repeated use.
The named ingredient is where the science thins. Centella asiatica's active triterpenes, asiaticoside, madecassoside and their acids, have clinical support for wound healing and for reducing redness and transepidermal water loss in leave-on preparations, but that evidence comes from leaf extracts at meaningful percentages. Callus conditioned media, the culture fluid from centella stem cells, is a different material whose triterpene content is not standardised, and Coreana discloses it at 100 ppm. No trial examines a centella culture medium at that level in a wipe-on pad, so the reasonable position is that it contributes little beyond the brand story. Mung bean seed extract, the first botanical listed, has laboratory data for antioxidant and anti-inflammatory flavonoids such as vitexin and isovitexin, but again no human topical trials. Chamomile flower extract carries apigenin and bisabolol with modest anti-inflammatory support, and the remaining botanicals are at positions that make them functionally decorative.
What can be said with confidence is structural: an essence at pH 5.5 with no ethanol, no acids and no fragrance imposes almost no irritant load, and the benefit reactive skin reports from switching to such a product is mostly the removal of what the previous toner contained. The formula's strongest evidence is for what it leaves out.