The Inkey List Niacinamide Serum Dupes & Cheaper Alternatives
From 5 Reddit threads · Updated November 11, 2026
10% niacinamide for oil control and pore-focused routines; rosacea flare risk. The catch: one rosacea user blamed it for triggering rosacea. Here's what Redditors reach for instead.
The short answer
Best Overall AlternativeWatery toner-like texture that layers smoothly under other products · $17.50 · 149.9 ml
Best Cheaper AlternativeClinical acne evidence, not just skincare lore · $5.97 · 29.6 ml vs $13.00 for the original
Same Active: Niacinamide30% glycerin serum for damp-skin application · $27.99 · 39.9 ml
#1
Best Overall Alternative
- Size: 149.9 ml
- Price per ml: $0.12/ml (original $0.44/ml)
The why
A watery peptide essence with niacinamide, glycerin, and sodium hyaluronate, designed for damp-skin hydration and smoother layering. It suits oily, dehydrated, or tret-treated routines, though redness, jawline breakouts, and underwhelming long-term results are recurring complaints.
One minus
Breakouts reported around the jawline, especially by acne-prone users
Good forDry Skin, Sensitive Skin
The original, at a glance
- Why people love it
- 10% niacinamide for oil-control routines
- Price
- $13.00 · 29.6 ml · $0.44/ml
#2
Best Cheaper Alternative
- Size: 29.6 ml
- Price per ml: $0.20/ml (original $0.44/ml)
The why
A simple niacinamide serum for oily skin, visible pores, and uneven tone. Redditors report smoother cheeks and less shine, while studies found topical niacinamide improved acne in some trials; sensitive or over-treated skin can develop redness and dryness.
One minus
Too much, too often triggers red dryness and flare-ups
Good forSensitive Skin
#3
Same Active: Niacinamide
- Size: 39.9 ml
- Price per ml: $0.70/ml (original $0.44/ml)
The why
A glycerin-heavy recovery serum for damp-skin layering after tretinoin or other irritating actives gives dehydrated skin immediate hydration and helps peeling settle. Redditors with dry, retinoid-treated skin reach for it; those who hate tackiness may quit before moisturizer goes on.
One minus
Tacky, goopy finish bothers texture-sensitive users
Good forDry Skin, Sensitive Skin
Other alternatives worth a look
60% propolis gives a lightweight, glassy finish · 54 recs
Dry SkinSensitive Skin
Tranexamic acid plus niacinamide for pigment-focused routines · 57 recs
Dry SkinSensitive Skin
Light gel with fast absorption · 25 recs
Gel TextureLightweight
Browse more
Reddit's best serums by ingredient list
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