HYAAH

HYAAH (Korean: 히야) is a South Korean direct-to-consumer skincare brand based in the Gangnam district of Seoul and operated by ONLYNI Inc. (주식회사 온리니) [1][2]. It sells a skincare-led range alongside haircare and a handful of body and home items, building its identity around quiet absorption rather than visible shine. The brand summarises that idea in its tagline, "we chose to seep in rather than to sparkle" [5]. HYAAH is actively trading: it runs its own online store, stocks its flagship cleansing water at Olive Young, and maintains an engaged customer community.

HYAAH is owned by ONLYNI Inc., a Korean company registered at Teheran-ro 82-gil 15 in the Daechi-dong neighbourhood of Gangnam-gu, Seoul [1][2]. Company filings list Lim Se-kyung and Kwon Soon-hyun as its chief executives. The brand's own narrative pages, which present its sense of mission and a founder's-voice section, are delivered through a script-based store template and could not be read directly, so HYAAH's founding date and founding story are not documented in available sources. Korean origin is firmly established by the registered Seoul address and the brand's Korean-language operations.

HYAAH frames itself around what it calls good ingredients, honest processing and continuous research, and describes a deliberate intent to develop products rather than follow trends [6]. The recurring line across its desktop and mobile homepages — "we chose to seep in rather than to sparkle" — sets absorption and effectiveness above cosmetic shine as the brand's guiding idea [5]. Its English-facing profile, as syndicated by the global K-beauty retailer StyleKorean, repeats this positioning and classifies HYAAH as a Korean skincare brand [6].

Unusually, the company stretches a single "skincare" metaphor across its whole catalogue, dividing products into applied skincare (cosmetics), drinkable skincare (food items such as vinegar and ginger tea) and wearable skincare (towels and bedding). Only the cosmetic lines fall within the scope of a beauty catalogue.

The brand's signature product is the Mild But Deep Cleansing Water, highlighted on its homepage and carried at Olive Young [3]. Around it sits a skincare range that leans on a recognisable set of hero ingredients: licorice in its Licorice First Essence, ectoin in an all-in-one lotion, and a high-purity organic jojoba oil. Haircare extends the same ingredient-led approach, with a ginger-and-caffeine shampoo and a biotin scalp mask, while other lines cover essences, creams, mask pads and sun care.

HYAAH puts a strong emphasis on usage guidance. It publishes a content board it calls the "white paper" (히야백서), a collection of routines and product tips written for its fans, and it has coined an in-group vocabulary — including a nickname, "Hidung-i," for its customers and a small glossary of brand-specific terms. This editorial, community-first approach stands in for mass advertising and is characteristic of a smaller Korean indie brand. One of the white-paper routines references a "clinically tested" regimen for pore and elasticity concerns; HYAAH presents this as a clinical claim, though the underlying testing is not detailed in available sources [4].

HYAAH's clearest external validation comes through retail. Its flagship Mild But Deep Cleansing Water is sold at Olive Young, South Korea's largest beauty retailer, where the product page carried a rating of 4.9 out of 5 from roughly 999 reviews [7]. That figure is drawn from a search-engine snippet of the listing, because the retailer blocks automated access to the page directly. HYAAH products are also reviewed on Hwahae, Korea's dominant cosmetics ingredient-review platform — a further signal of an established, actively sold brand.

HYAAH is an active brand. As of mid-2026 its own store showed live promotions and sale pricing, its community white-paper board was being updated, and its flagship remained stocked at Olive Young. Distribution is primarily domestic to South Korea, with an international export tail handled through K-beauty exporters such as StyleKorean and KoreanDirect [8]. There is no evidence of dormancy.