Perfect Diary, launched in 2017 by Yatsen Holdings, became China's fastest-growing domestic beauty brand by spending aggressively on social media marketing, KOL (key opinion leader) partnerships and livestreaming. The brand was everywhere on Xiaohongshu (Little Red Book), Douyin and Tmall, and it went public on the NYSE in November 2020 at a valuation of over $12 billion.
But the growth was built on marketing spend that consumed more than 60% of revenue. The brand had little pricing power, no loyalty, and thin margins. When customer acquisition costs rose and competition from other domestic brands intensified, the model broke. Revenue growth stalled while marketing costs stayed high, and the company reported mounting losses.
Yatsen's stock fell more than 90% from its peak. The company attempted to pivot toward skincare and higher-margin brands, acquiring Galénic and Eve Lom, but the core Perfect Diary brand continued to struggle. The case became a cautionary tale about the limits of growth-at-all-costs in consumer beauty, and the difference between buying customers and building a brand.
Bought growth with ads and KOLs instead of loyalty, so when acquisition costs rose, revenue stalled and the stock crashed 90%, wiping out $12B.
Perfect Diary spent over 60% of revenue on marketing, buying growth through KOL partnerships and livestreaming rather than building brand equity.
The brand had no pricing power or customer loyalty — consumers followed the discounts and the next viral product.
When customer acquisition costs rose and competition intensified, the unit economics collapsed.
The company went public at a $12B valuation before proving it could be profitable, creating expectations it could not meet.
Buying customers is not building a brand. When growth depends on spending 60%+ of revenue on acquisition and the product has no loyalty, the business breaks the moment costs rise.
Yatsen Holdings attempted to pivot toward skincare and premium brands through acquisitions, but the core Perfect Diary brand continued to decline. The case is now cited alongside other Chinese DTC brands that grew fast on social media marketing but failed to build durable brand equity.
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