— · Serum
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4.8
52 reviews
Rating breakdown
Most-mentioned keywords
Why consumers buy
Ingredient Reputation & Retinol Appeal
Consumers actively sought this product specifically for its retinol and collagen combination, viewing these ingredients as anti-aging and skin-quality drivers. Multiple reviews indicate buyers were researching retinol products and selected this based on ingredient profile.
Brand Cross-Purchase & Product Ecosystem
Several reviewers mention buying this after positive experiences with other CKD products (toner, cream, gua sha cream), suggesting strong brand loyalty and ecosystem purchasing behavior.
Price-Value Perception
Multiple reviews explicitly highlight the affordable pricing relative to perceived results, with comments like 'お値段の割にほんとすごい' (amazing for the price) and willingness to repurchase repeatedly at sale prices.
Repurchase & Loyalty
Exceptional repurchase frequency (10+ bottles mentioned by multiple reviewers) indicates strong retention; consumers buy repeatedly rather than trialing alternatives.
Gift Purchases & Social Proof
Several reviews mention buying for mothers/family members, and highly-rated review counts suggest social proof and influencer/word-of-mouth recommendation drive acquisition.
How they use it
Morning Post-Shower Application
Multiple reviews describe applying immediately after showering when skin still has residual moisture, suggesting use as a hydration-locking step in morning routines.
Sentiment breakdown
Share of analyzed reviews by overall sentiment.
Face & Neck Layering
Consumers apply to both face and neck areas, indicating use as a full upper-body ampoule rather than spot treatment.
Combination with Complementary Products
Reviews frequently mention pairing with CKD cream, toner, and gua sha products, suggesting use as part of a multi-step routine rather than standalone.
Daily/Regular Usage
Descriptions like '毎日使いしやすい' (easy to use daily) and consistent repurchase patterns indicate daily incorporation into skincare routines rather than occasional use.
Winter & Dry Season Preference
One review explicitly recommends for winter and dry skin conditions, suggesting seasonal adjustment in application but not discontinuation.
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