Compare Products: The Niacinamide 15 Serum vs White Truffle First Spray Serum

COSRX

The Niacinamide 15 Serum

Mid-range15%
$25 / 20ml — $1.25/ml

Who It's Designed For

COSRX
  • Oily and acne-prone skin seeking serious oil control
  • Post-acne marks and hyperpigmentation
  • Enlarged pores and textured skin
  • Users ready to step up from 10% to higher-strength niacinamide
  • Those who prefer minimal-ingredient formulas
d'Alba
  • Those who want hydration in a convenient spray format
  • Users looking for a mid-day refresh over makeup
  • People who enjoy a light fragrance in their skincare
  • K-beauty enthusiasts looking for a multi-step layering product
  • Those seeking a lightweight serum alternative to heavier essences

Key Ingredients

COSRX

Niacinamide (15%), Acetyl Glucosamine (2%), Zinc PCA (1%), Allantoin (0.1%)

d'Alba

White Truffle Extract (Tuber Magnatum, 1,740ppm), Niacinamide, Sodium Hyaluronate, Glycerin

Product Composition

20% similarity (10 ingredients in common)

Shared Ingredients
waterniacinamidebutylene glycolacetyl glucosamine12-hexanediolallantoinethylhexylglycerinsodium phytatecitric acid
Only in COSRX (6)
pentylene glycolzinc pcatrehalosexanthan gumpullulantocopherol
Only in d'Alba (33)
methylpropanediolpanthenolhydroxyethyl ureaadenosinetuber magnatum extractmelia azadirachta leaf extractmelia azadirachta flower extractcoccinia indica fruit extractsolanum melongena (eggplant) fruit extractaloe barbadensis leaf extractocimum sanctum leaf extractcurcuma longa (turmeric) root extractcorallina officinalis extractmoringa oleifera seed oilcamellia sinensis leaf extractbeta-glucancetearyl olivatesorbitan olivatecarbomertromethaminecaprylic/capric triglyceridecetearyl alcoholstearic acidsorbitan palmitatesorbitan olivatedextrinsilicaparfumlinaloollimonenecitronellolgeraniolbenzyl benzoate

User Feedback Patterns

COSRX
Oil control standout

Users consistently report significant reduction in daytime oil and shine. Many describe it as the best niacinamide serum they have tried for sebum control.

Lightweight texture praised

Unlike some high-concentration serums, this absorbs quickly without tackiness or residue. Layers well under other products.

Small bottle concern

The 20ml size (vs. 30ml standard) is a common gripe, especially given the price point.

Pore improvement takes time

Users report visible pore improvement around the 3-4 week mark with consistent twice-daily use.

d'Alba
Beloved for convenience

Users consistently praise the spray format for ease of use, especially for refreshing skin mid-day or setting makeup. The mist is fine and even.

Pleasant scent divides opinion

Many users enjoy the light floral scent. However, fragrance-sensitive users report irritation or prefer unscented alternatives.

Over 20 million bottles sold

The brand reports selling over 20 million units, making this one of the best-selling K-beauty mist products globally. The large user base reflects broad appeal.

Subtle results

Most users describe the effects as hydrating and refreshing rather than transformative. Those expecting dramatic brightening or anti-aging results may find it underwhelming.

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