COSRX "Advanced Snail 96 Mucin Power Essence", cleanser tube and creams on yellow with gel and cream smears
Submitted by Z MEDIA

COSRX TikTok Shop Skincare Authority Creator Program

Influencer Marketing

Z MEDIA ran education-led skincare creator partnerships and retargeting on TikTok Shop for K-beauty brand COSRX, which the agency reports drove $127K in TikTok Shop GMV in 30 days.

$127KTikTok Shop GMV

Case in 60 seconds

COSRX wanted TikTok Shop to become a core revenue channel, while K-beauty audiences on TikTok are educated about ingredients and formulations, so promotional content lacking genuine product knowledge is dismissed before it converts.

Z MEDIA reads K-beauty buyers as research-led and sceptical of traditional advertising, so the sale depends on conviction built through demonstrated product knowledge before any call to action rather than on exposure alone.

The organizing thesis was conviction before conversion, with skincare authority creators building belief in COSRX formulations through education, so that the trust audiences place in those creators transfers to the products they recommend.

Z MEDIA partnered with skincare influencers chosen for knowledge rather than following, who made ingredient breakdowns, before-and-after assessments and routine integrations on TikTok, while paid ads retargeted viewers who had engaged with that educational content.

Z MEDIA reports $127,000 in TikTok Shop GMV in 30 days for COSRX and frames the result as skincare authority converted directly into purchase intent, while the page publishes no other figure.

Strategy Breakdown

K-beauty audiences on TikTok who are highly educated about ingredients, formulations and skincare science, and who engaged with educational skincare content before being retargeted.
Skincare buyers on TikTok are research-led and sceptical of traditional advertising, so a K-beauty brand cannot sell there through product pitches and has to show genuine knowledge of ingredients and formulation first.
COSRX entered with an existing reputation for ingredient integrity in acne care and skin barrier support, so the work set out to convert that credibility into TikTok Shop sales rather than to build awareness from nothing.
Viewers who have watched ingredient breakdowns and tutorials have already done their consideration, which is why Z MEDIA says retargeting them closes the loop efficiently rather than restarting persuasion with cold audiences.

Creative & Execution System

Assets & channels

  • TikTok

Partners

  • Z MEDIA

Results & Evidence

MetricValue
TikTok Shop GMV$127K TikTok Shop GMV

Why Z MEDIA's strategy worked

  1. 1

    In a category where buyers research ingredients, educational content builds the conviction that promotional content cannot, because an audience that understands why a product works has already reasoned its way towards buying it.

  2. 2

    Creator selection by subject authority rather than audience size suits specialist categories, because followers trust a skincare creator for accuracy, and that accuracy is what transfers to the product the creator recommends.

  3. 3

    Retargeting viewers of educational content concentrates paid spend on audiences who have already done the consideration work, so the ad closes a decision the creator content opened rather than starting one from cold.

  4. 4

    Leading with formulation honesty matters for K-beauty audiences, because the agency links the trust it builds to repeat purchase rather than to first conversions alone.

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