Side-by-side comparison

The Inkey List Niacinamide Serum vs Vichy Mineral 89 Probiotic Fractions Serum

Both are serums. They share a 85% active-ingredient overlap, so the real decision is about price, texture and the supporting ingredients. Here's the side-by-side.

85%Active overlap
The Inkey List
Niacinamide Serum
SerumBudgetMorning or evening
OilinessCongestionDark Spots

A 10% niacinamide serum with added hyaluronic acid for oil control and blemish support. A clean, affordable single-active option; broadly comparable to other 10% niacinamide serums with a slightly more hydrating base.

Full analysis →Find dupes →
Vichy
Mineral 89 Probiotic Fractions Serum
SerumPremiumMorning or evening
DehydrationSensitivityDullness

A recovery serum building on the Mineral 89 line with probiotic fractions and hyaluronic acid for stressed, fatigued skin. Lightweight, soothing daily hydration with a barrier-recovery slant.

Full analysis →Find dupes →
The verdict

Which should you choose?

On price, the The Inkey List Niacinamide Serum sits in the Budget tier versus Premium for the Vichy — so it's the more budget-led pick if the overlap is what you're after. The The Inkey List leans toward Congestion, Dark Spots, Oiliness. The Vichy leans toward Dehydration, Dullness, Sensitivity.

The overlap

What they share

At 85% active overlap, these are the ingredients doing comparable work in both formulas:

Hyaluronic AcidNiacinamide
The formulation

Ingredient stacks, side by side

The Inkey List — top of the list

  • Aqua~50–80%
  • Niacinamide~5–25%
  • Glycerin~3–10%
  • Sodium Hyaluron…~2–6%
  • Pentylene Glycol~1.5–4%

Vichy — top of the list

  • Aqua~50–80%
  • Glycerin~5–25%
  • Bifida Ferment …~3–10%
  • Niacinamide~2–6%
  • Sodium Hyaluron…~1.5–4%

● marks ingredients that appear near the top of both lists. Percentages are positional estimates from INCI order, not disclosed doses.

At a glance

The specs

The Inkey ListVichy
CategorySerumSerum
Price tierBudgetPremium
Best forOiliness, Congestion, Dark SpotsDehydration, Sensitivity, Dullness
Usage notesMorning or eveningMorning or evening
Active overlap85% — Hyaluronic Acid, Niacinamide
Questions

Common questions

Is the The Inkey List Niacinamide Serum or the Vichy Mineral 89 Probiotic Fractions Serum better?
Neither is universally better — they share 85% active-ingredient overlap, so for the actives that drive results they're close. The The Inkey List Niacinamide Serum is the more budget-friendly option, while the other may differ on texture, finish and supporting ingredients. Pick based on your skin's priorities rather than a single 'winner'.
What's the difference between the The Inkey List Niacinamide Serum and the Vichy Mineral 89 Probiotic Fractions Serum?
Both are serums that share Hyaluronic Acid, Niacinamide. Where they differ: they sit in different price tiers (Budget vs Premium); the The Inkey List targets Congestion, Dark Spots; the Vichy targets Dehydration, Dullness.
Are the The Inkey List Niacinamide Serum and Vichy Mineral 89 Probiotic Fractions Serum dupes for each other?
They share 85% active-ingredient overlap based on published INCI lists, so one can stand in for the other on the actives that matter — chiefly Hyaluronic Acid, Niacinamide. A dupe matches the hero actives, not the full sensory experience, so expect differences in texture, fragrance and exact concentrations.
Can I use the The Inkey List Niacinamide Serum and Vichy Mineral 89 Probiotic Fractions Serum together?
They both fill the serum slot in a routine, so you'd normally pick one rather than layer both. If you want to use both, treat one as your daytime option and the other for evening, and patch-test when introducing anything new.
Keep comparing

Related comparisons

Glow Recipe Watermelon Glow Niacinamide Dew Drops vs The Inkey List Niacinamide Serum
99% overlapHaruharu Wonder Black Rice Hyaluronic Serum vs The Inkey List Niacinamide Serum
99% overlapAnua Niacinamide 10% + TXA 4% Serum vs The Inkey List Niacinamide Serum
85% overlapGlow Recipe Plum Plump Hyaluronic Acid Serum vs The Inkey List Niacinamide Serum
85% overlapThe Inkey List Niacinamide Serum vs Torriden DIVE-IN Low Molecular Hyaluronic Acid Serum
85% overlapBeauty of Joseon Glow Serum : Propolis + Niacinamide vs The Inkey List Niacinamide Serum
77% overlap

Want a deeper, personalised read? Drop both products into the live comparison tool for an ingredient-by-ingredient breakdown tuned to your skin profile.

Compare these yourself →