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OHUI

OHUI OHUI Day Shield Dark Spot Collagen Tone-up Sun

Ingredient analysis and how the ad lines read

Read on 2026-09-21

What is this product?

A mixed mineral and organic SPF 50+ PA++++ tone-up sunscreen with niacinamide placed high in the list, plus tranexamic acid, ascorbic acid and collagen at 15ppm in the later half; a reasonable pick for brightening-focused daily sun protection if fragrance is acceptable.

What makes it different?

It pairs four UV filters, a mineral one at fifth position and three organic ones, with niacinamide at eighth, an unusually high placement for a brightening active in a sunscreen. The dark spot story rests on tranexamic acid and ascorbic acid in the later half plus collagen at a disclosed but very small 15ppm, so the actives are thinner than the marketing suggests. Fragrance and three listed fragrance allergens are present, which sensitive users should weigh. Press release clinical figures cite a named testing center but the protocols behind the numbers are only partially described.

What is in it?

The full ingredient list as the brand publishes it, in the printed order. Each name links to what we know about that ingredient.

This brand publishes its ingredient list in Korean only. Names below are the matching INCI names from the Korean Cosmetic Association ingredient dictionary, except 3 with no dictionary entry, left in Korean.

Key ingredientWorth a closer look

Ingredients with no mark are ones we found nothing notable about, and when marks overlap on one ingredient we show the caution first.

We could not place these in the list above: 스테아릭애씨드, 미리스틱애씨드, 다이메티콘

Did the ad claims hold up?

We checked 6 lines this product advertises against the ingredient list and public documents. One of them holds up. The rest are only partly right or have nothing behind them.

Claims translated from Korean, originals preserved.

backed by evidence1

  • [2] Vitamin C·Vitamin E·Coenzyme Q10
    Korean original

    [2] 비타민C·비타민E·코큐텐

partly backed3

  • The O HUI Day Shield Dark Spot Collagen Tone Up Sun is a product that brightens and corrects yellow skin tone with a pastel purple color. It was confirmed to improve actual skin brightness, reduce yellow and red undertones, and improve skin tone uniformity by 18.4%[1]. Additionally, it is a moisture formula that applies moistly without white cast, and when used in the first step of makeup, it helps enhance the finish.
    Korean original

    오휘 데이쉴드 다크스팟 콜라겐 톤업 선은 파스텔톤 퍼플 컬러로 노란 피부톤을 화사하게 보정하는 제품이다. 실제 피부 밝기를 개선하고, 노란기와 붉은기를 완화해, 피부 톤 균일도를 18.4% 개선하는 톤업 효과를 확인했다[1]. 또한 백탁 없이 촉촉하게 발리는 수분 제형으로, 메이크업 첫 단계에 사용하면 완성도를 높이는 데 도움이 된다.

  • Its key ingredients include ‘3D Core Collagen™’, which has the same triple helix structure as human collagen, and ‘Super Vitamin Complex[2]’, known as an antioxidant ingredient. In addition, it contains ‘Niacinamide’, a whitening functional ingredient for improving freckles and pigmentation, and ‘Tranexamic Acid’, an ingredient known to help with brightening care. Clinical results also confirmed that the area of freckles and dark spots improved by 41.13% after 4 weeks of product use[3].
    Korean original

    주요 성분으로는 인체 콜라겐과 동일한 삼중 나선 구조의 ‘3D 코어 콜라겐™’과 항산화 성분으로 알려진 ‘슈퍼 비타민 콤플렉스[2]’를 담았다. 또한 기미, 색소침착 개선을 위한 미백 기능성 성분인 ‘나이아신아마이드’와 브라이트닝 케어에 도움을 줄 수 있는 성분으로 알려진 ‘트라넥삼산’을 함유했다. 제품 사용 4주 만에 기미·잡티 면적이 41.13% 개선되는 임상 결과도 확보했다[3].

  • The O HUI Day Shield Dark Spot Collagen Tone Up Sun has a ‘mixed sunscreen’ formula that combines the advantages of inorganic and organic sunscreens. After 2 weeks of product use, photoaging improvement effects[4] were observed, with UV-damaged skin soothing by 38.4% and skin texture improving by 10.3%.
    Korean original

    오휘 데이쉴드 다크스팟 콜라겐 톤업 선은 무기자차와 유기자차의 장점을 결합한 ‘혼합자차’ 제형이다. 제품 사용 2주 만에 자외선 손상 피부가 38.4% 진정되고, 피부 결은 10.3%가 개선되는 광노화 개선 효과[4]가 나타났다.

says nothing2

  • )--LG Household & Health Care's De Aging solution beauty brand ‘O HUI’ has launched the ‘O HUI Day Shield Dark Spot Collagen Tone Up Sun’(SPF 50+ / PA++++), which intensively manages freckles and dark spots caused by UV rays.
    Korean original

    )--LG생활건강의 디에이징(De Aging) 솔루션 뷰티 브랜드 ‘오휘’가 자외선으로 인한 기미·잡티를 집중 관리하는 ‘오휘 데이쉴드 다크스팟 콜라겐 톤업 선’(SPF 50+ / PA++++)을 출시했다.

  • LG Household & Health Care's O HUI brand stated that this new product is differentiated as it not only blocks UV rays, the basic function of sunscreen, but also improves photoaging, and that O HUI will continue to unveil a variety of functional sun product lineups to help alleviate customers' skin concerns.
    Korean original

    LG생활건강 오휘 브랜드는 이번 신제품은 선크림의 기본 기능인 자외선 차단 기능은 물론 광노화 개선까지 하는 차별화된 제품이라며, 오휘는 앞으로도 다양한 기능성 선 제품 라인업을 선보이며 고객의 피부 고민 완화를 돕겠다고 밝혔다.

Each line is quoted as the brand published it, and each one was read on its own against the ingredient list and the documents the brand publishes.

How we read these lines