COSRX

COSRX The Retinol 0.3 cream

Ingredient analysis and how the ad lines read

Read on 2026-09-24

What is this product?

COSRX The Retinol 0.3 cream is a 20 ml evening retinol cream in an aluminium tube. Its Korean statutory list prints retinol at 0.3 percent, the 20th of 51 entries, with adenosine at 36, a vitamin E group (tocopherol, tocopheryl acetate, tocotrienols), panthenol, shea butter and plant oils. It is a filed wrinkle improvement functional cosmetic. No fragrance entry, no essential oil and no exfoliating acid are printed. The brand positions it between its 0.1 cream and 0.5 oil and sends retinol newcomers to the 0.1 cream. Its guide starts at two to three evenings a week for two weeks, then every other evening. Pore, wrinkle and elasticity figures come from one brand-run 20 person, four week panel with no control, and the two irritation reports pictured name this cream but print no scores. Retinol is a retinoid, avoided in pregnancy as a precaution, and the page prints no such caution.

What makes it different?

A printed 0.3 percent retinol, the middle step of the brand's three strengths, in a filed wrinkle functional cream with adenosine alongside. Against the brand's 0.1 cream it shares 50 of 51 entries but reorders them, with retinol higher in the list. Its irritation reports are for this product itself, though no scores are shown.

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.

Key ingredient

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: 돌콩오일, 해바라기씨오일, 오일팜오일, 글리세릴스테아레이트, 미리스틱애씨드, 라우릭애씨드, 레티놀

Did the ad claims hold up?

We checked 26 lines this product advertises against the ingredient list and public documents. 2 of them hold up. The rest are only partly right or have nothing behind them.

Claims translated from Korean, originals preserved.

backed by evidence2

  • Functional for wrinkle improvement
    Korean original

    주름개선 기능성

  • Pure retinol 0.3%
    Korean original

    순수 레티놀 0.3%

likely, not proven8

  • For retinol-experienced users
    Korean original

    레티놀 숙련자용

  • + Fimness & Smooth + Youthful-looking Skin
  • Super vitamin E (Tocotrienol) for skin protection and skin boosting
    Korean original

    슈퍼비타민E (토코트라이엔올) 피부 보호 피부 부스팅

  • Panthenol (vitamin B5) provides moisture and calms skin
    Korean original

    판테놀 (비타민B5) 보습감 부여 피부 진정

  • Allantoin soothes and protects skin
    Korean original

    알란토인 피부 진정 피부 보호

  • Hyaluronic acid hydrates and maintains moisture
    Korean original

    히알루론산 수분 충전 보습 유지

  • A retinol formula that adheres thinly and tightly, absorbs without stickiness, and fills with moisture from within, providing a noticeable difference in skin texture
    Korean original

    얇고 쫀쫀하게 밀착되어, 끈적임 없이 흡수되고 속은 촉촉하게 보습감을 채워주어 피부 결의 차이를 선사하는 레티놀 포뮬러

  • An aluminum tube is applied to stably maintain the efficacy of retinol, which is susceptible to light, heat, and oxygen.
    Korean original

    빛, 열, 산소에 약한 레티놀 효능을 안정적으로 유지하기 위해 알루미늄 튜브를 적용했습니다.

partly backed12

  • Tighten and firm from pore elasticity to deep wrinkles with pure retinol that is 3 times* more abundant!
    Korean original

    3배* 더 가득 찬 순수 레티놀로 모공탄력부터 깊은 주름까지 탄탄하게!

  • Improves various skin aging signs that start from sagging pores with no elasticity
    Korean original

    탄력 없이 늘어진 모공으로 시작되는 다양한 피부 노화 징후 개선

  • Suitable for use on acne-prone skin
    Korean original

    여드름성 피부 사용적합

  • Low irritation
    Korean original

    저자극

  • Designed with an optimal blend of pure retinol that is 3 times* more powerful, including super vitamin E and panthenol, to boost retinol's benefits while protecting the skin
    Korean original

    3배* 강력해진 순수레티놀과의 최적 배합으로 슈퍼비타민E, 판테놀을 담아 레티놀의 효능은 올리고, 피부를 보호해주는 맞춤 설계

  • Helps with 6-fold pore improvement for firm, elastic pores without sagging
    Korean original

    늘어짐없이 탄력있는 모공 6중 모공 개선에 도움

  • Helps with 6-fold wrinkle improvement from fine lines to deep wrinkles
    Korean original

    미세주름부터 깊은 주름까지 6중 주름 개선에 도움

  • Helps with 4-fold lifting improvement for firmness across the entire face
    Korean original

    얼굴 전체에 탱탱함 4중 리프팅 개선에 도움

  • Helps improve surface elasticity of skin by filling it thoroughly from within for firm skin
    Korean original

    속부터 빈틈없이 채우는 탄력 피부 겉탄력 개선에 도움

  • Safe even for sensitive skin - 2 types of skin irritation tests completed
    Korean original

    민감한 피부도 안심 피부 자극 테스트 2종 완료

  • Completed non-comedogenic test* so acne-prone skin can be reassured
    Korean original

    여드름성 피부도 안심할 수 있는 논코메도제닉테스트* 완료

  • Deep wrinkle care
    Korean original

    깊은 주름 케어

overstated ad line2

  • Because it is 3 times* more powerful, a more assured anti-aging effect
    Korean original

    3배* 더 강력해진 만큼 더 확실한 안티-에이징 효과

  • Skin improvement satisfaction 100%
    Korean original

    피부 개선 만족도 100%

no evidence1

  • Improves skin aging index
    Korean original

    피부 노화 지수 개선

says nothing1

  • The optimal anti-aging solution that firmly holds sagging pores and skin elasticity.
    Korean original

    늘어진 모공과 피부 탄력을 꽉 잡아주는 최적의 에이징 솔루션

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

What else is worth seeing?

Products we read alongside this one.