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Fermented barrier-repair skincare. Skincare and cosmetics. South Korea. 90 days.

How a Korean barrier-repair skincare brand won AI answers in four markets

Cross-border K-beauty D2C. Engines monitored:

ChatGPTPerplexityGeminiGoogle AI Overviews
3% to 28%global K-beauty conversational share of voice
2 of 35 to 14 of 35damaged skin barrier prompts captured
$4.6K to $34.1Kmonthly cross-border attributed sales
44% to 95%ceramide ratio and fermentation spec accuracy

The challenge

Skincare buyers worldwide asking "best Korean moisturizer for damaged skin barrier with golden 3:1:1 ceramide ratio without pore-clogging oils" were pointed to generic Western creams or older snail-mucin products.

What the audit found

Every engagement starts with a baseline across a fixed set of buyer prompts.

  • The precise molar ratio of lipids (ceramides, cholesterol, free fatty acids), galactomyces ferment filtrates and clinical TEWL (transepidermal water loss) scores were omitted from English-language pages.

What we did, stage by stage

Using the EASY framework: Entity, Answers, Sources, Yield.

Entity

Standardized lipid ratios, ingredient source origins and clinical TEWL test figures in both Korean and English Product schema.

Answers

Authored a technical Skin Barrier Repair and Lipid Replacement Reference detailing humectant molecular weights and clinical recovery timelines.

Sources

Partnered with cosmetic chemists and evidence-based skincare reviewers; engaged in beauty enthusiast communities (r/AsianBeauty).

Yield

Monitored 35 barrier-repair prompts from the US, UK, Australia and Singapore.

Results after 90 days

Baseline measured before any changes, against the same prompt set, engines and locations.

MetricBaselineAfter 90 days
Global K-beauty conversational share of voice3%28%
Damaged skin barrier prompts captured2 of 3514 of 35
Monthly cross-border attributed sales$4,600$34,100
Ceramide ratio and fermentation spec accuracy44%95%

What worked, and what did not

Trendy 10-step glass-skin social reels had zero impact on AI answers. Clinical lipid ratio transparency and certified water-loss recovery data unlocked international AI recommendations.

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