Troiareuke Seoul Ectoin Tone-up Sun Serum SPF50+ PA++++

Troiareuke's Seoul Ectoin Tone-up Sun Serum (50ml, SPF50+/PA++++ per the brand's own packaging photography) sells on Olive Young Korea for 36,500 KRW list / 31,000 KRW sale (15% off), 1,010 reviews, rated 5.0, checked 2026-09-07. Missed by this project's original "크림" name-filter because of its "선세럼" (sun serum) name, but its own product photos show a thick, pigmented, dollop-holding-shape swatch typical of a tone-up cream — not a thin, runny liquid meant to layer under a separate sunscreen — and usage instructions apply it directly to sun-exposed skin as the finishing step. Uses a mixed (hybrid) UV filter system — one mineral filter (Titanium Dioxide) plus three organic filters — per Olive Young Korea's own mandatory ingredient disclosure; the same filter combination appears in several other tone-up sunscreens already catalogued in this project. Sold internationally through resellers (e.g. ecoshop-usa.com, at around US$59.59 sale / US$88.88 list) under a similar "TROIAREUKE Seoul Ectoin Tone-Up Sun Serum SPF50+ PA++++" name, but no reseller publishes a full ingredient list for comparison against Olive Young Korea's own mandatory disclosure, so a formula match could not be confirmed either way, checked 2026-09-07. (Checked: 2026-09-07)

Specifications

• Volume: 50ml
• Form: cream
• Named in the product title: Ectoin: rank 26 of 51
• Dictionary-listed actives: Niacinamide: rank 9 of 51; Adenosine: rank 29 of 51
• Vegan certified: Not verified
• Contains petrolatum: No
• Korea launch: unknown
• Renewal history: None recorded
• Korea vs export: Not yet researched
• Korea regular price: ₩36,500
• Price per 100ml: ₩73,000 / 100ml
• Global price: US$59.59 sale / US$88.88 list (ecoshop-usa.com reseller)
• Retailers: Sold in Korea only: Olive Young Korea; Shipping scope unverified: Troiareuke official store (troiareuke.co.kr), ecoshop-usa.com (reseller)
• Full ingredient list (INCI): Water, Dibutyl Adipate, Propanediol, Titanium Dioxide, Caprylic/Capric Triglyceride, Butyloctyl Salicylate, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Ethylhexyl Triazone, Niacinamide, Caprylyl Methicone, Diethylhexyl Butamido Triazone, 1,2-Hexanediol, Pentylene Glycol, Polymethylsilsesquioxane, Dimethicone, Polyhydroxystearic Acid, Coco-Caprylate/Caprate, Butylene Glycol, Stearic Acid, Dimethicone/Vinyl Dimethicone Crosspolymer, Sodium Polyacryloyldimethyl Taurate, Ammonium Polyacryloyldimethyl Taurate, Alumina, Hydroxypropyl Methylcellulose Stearoxy Ether, Fragrance / Parfum, Ectoin, Xanthan Gum, Ethylhexylglycerin, Adenosine, Iron Oxide Yellow, Triethoxycaprylylsilane, Iron Oxide Red, Lecithin, Ethylhexyl Palmitate, Isostearic Acid, Isopropyl Myristate, Sodium Hyaluronate, Aloe Barbadensis Leaf Extract, Eucalyptus Globulus Leaf Extract, Mentha Arvensis Extract, Cymbopogon Citratus Extract, t-Butyl Alcohol, Polyglyceryl-3 Polyricinoleate, Erythritol, Polymethyl Methacrylate, Tocopherol, Guaiazulene, Hyaluronic Acid, Sodium Hyaluronate Crosspolymer, Hydroxypropyltrimonium Hyaluronate, Sodium Acetylated Hyaluronate
  Korean labeling

  정제수, 다이부틸아디페이트, 프로판다이올, 티타늄디옥사이드, 카프릴릭/카프릭트라이글리세라이드, 부틸옥틸살리실레이트, 디에칠아미노하이드록시벤조일헥실벤조에이트, 에칠헥실트리아존, 나이아신아마이드, 카프릴릴메티콘, 디에칠헥실부타미도트리아존, 1,2-헥산다이올, 펜틸렌글라이콜, 폴리메틸실세스퀴옥세인, 다이메티콘, 폴리하이드록시스테아릭애씨드, 코코-카프릴레이트/카프레이트, 부틸렌글라이콜, 스테아릭애씨드, 다이메티콘/비닐다이메티콘크로스폴리머, 소듐폴리아크릴로일다이메틸타우레이트, 암모늄폴리아크릴로일다이메틸타우레이트, 알루미나, 하이드록시프로필메틸셀룰로오스스테아록시에터, 향료, 엑토인, 잔탄검, 에틸헥실글리세린, 아데노신, 황색산화철, 트라이에톡시카프릴릴실레인, 적색산화철, 레시틴, 에틸헥실팔미테이트, 아이소스테아릭애씨드, 아이소프로필미리스테이트, 소듐하이알루로네이트, 알로에베라잎추출물, 유칼립투스잎추출물, 콘민트추출물, 레몬그라스추출물, t-부틸알코올, 폴리글리세릴-3폴리리시놀리에이트, 에리스리톨, 폴리메틸메타크릴레이트, 토코페롤, 구아이아줄렌, 하이알루로닉애씨드, 소듐하이알루로네이트크로스폴리머, 하이드록시프로필트라이모늄하이알루로네이트, 소듐아세틸레이티드하이알루로네이트
• Functional cosmetic status: Registered (UV protection)
• SPF: SPF50+
• PA: PA++++
• UV filters: Titanium Dioxide, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Ethylhexyl Triazone, Diethylhexyl Butamido Triazone

Is it OK for sensitive skin?

Declared facts only, not a suitability verdict: fragrance is declared; no labeled fragrance allergens declared; no denatured alcohol listed. No irritation-related fact here implies suitability for any skin type.

How much of the key actives does it contain?

Niacinamide: rank 9 of 51; Ectoin (named in the product title): rank 26 of 51; Adenosine: rank 29 of 51.

Can I buy it outside Korea?

No international-shipping channel verified in our sources (checked 2026-09-10); Sold in Korea only: Olive Young Korea; Shipping scope unverified: Troiareuke official store (troiareuke.co.kr), ecoshop-usa.com (reseller); Global price: US$59.59 sale / US$88.88 list (ecoshop-usa.com reseller).

Is the Korean version different from the export version?

Not confirmed either way. A US reseller (ecoshop-usa.com) lists this exact product under a matching name, but does not publish a full ingredient list, so it could not be compared against Olive Young Korea's own mandatory disclosure. Treated as unresearched rather than guessed, checked 2026-09-07.

Is this really a cream, or a thin liquid serum meant to layer under a separate sunscreen?

Despite the "sun serum" name, the brand's own product photography shows a thick, pigmented dollop that holds its shape rather than running flat — a texture typical of a tone-up cream, not a thin liquid. Olive Young Korea's mandatory disclosure describes usage as applying it directly to sun-exposed areas, not as a layering step before a separate sunscreen, checked 2026-09-07.

What's the ratio of mineral to organic (chemical) UV filters?

Olive Young Korea's mandatory disclosure lists one mineral filter (Titanium Dioxide) alongside three organic filters (Diethylamino Hydroxybenzoyl Hexyl Benzoate, Ethylhexyl Triazone, Diethylhexyl Butamido Triazone); no exact ratio is disclosed on the label, checked 2026-09-07.

Sources

Olive Young product page — Checked: 2026-09-07