Haruharu Wonder
Black Rice Night Knight Retinol Serum
Highly rated, bestseller-visible nighttime retinol serum at an accessible price.
From $15.40 · Amazon *
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Signal breakdown
Search momentum
79.8
Shop velocity
70.8
Review sentiment
61.4
8-week signal trend
Current signal onlyNow 41
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History starts after weekly snapshots.
Key ingredients
| Ingredient | Function | Evidence |
|---|---|---|
| Retinol | supports an evening routine focused on smoother-looking texture | Strong |
| Black Rice | adds a botanical cue to the lightweight serum profile | Moderate |