++++
[ DemythSkin Verdict ]

Plum 5% Niacinamide & Rice Water Brightening Face Serum
SerumBrightening, pore-minimization, gentle exfoliation, hydration, beginner-friendly active introduction
Efficacy
Solid
3.9 / 5.0
Safety
Excellent
4.9 / 5.0
System Verdict
A beginner-friendly, well-formulated niacinamide serum with solid hydration support, but held back by unclear lactic acid pH and modest active concentration. The 5% niacinamide is clinically effective for brightening and pore-minimization, and the amino acid complex (8 of 9 essential amino acids) plus rice extract provide genuine hydration and antioxidant benefits. However, the efficacy score is capped at 4.2 because: (1) Lactic acid is present but no pH is disclosed—without confirmation of pH 3–4 range, exfoliation efficacy is uncertain; (2) 5% niacinamide is entry-level and won't deliver dramatic results for advanced users; (3) the formula is hydration-forward rather than treatment-intensive, making it more of a supportive serum than a powerhouse active; (4) rice extract and hydrolyzed rice protein are beneficial but not clinically proven at the concentrations used here. The safety score of 4.9 reflects clean formulation (no essential oils, minimal fragrance risk from rose water, benzyl alcohol as preservative at safe levels), though the lactic acid warrants patch-testing for sensitive skin.
Active Ingredients Detected
A Tier: Good BasicsProven Results
Niacinamide (5%)GlycerinAmino Acid Complex (Lysine, Histidine, Arginine, etc.)UreaSodium PCAAllantoin
B Tier: Supporting IngredientsPromising Ingredients
PropanediolHydrolyzed Rice ProteinLactic Acid
C Tier: Marketing IdolsHype | Limited or Weak Data
Oryza Sativa (Rice) Extract
Analyze on DemythSkin →
DemythSkin is an independent ingredient analyzer. Scores are computed by a deterministic rubric from published clinical evidence — no brand pays for a score.