Glossier Super Pure Niacinamide + Zinc Serum Dupes & Cheaper Alternatives
From 8 Reddit threads · Updated October 30, 2026
5% niacinamide serum with loyal six-year repurchases; can wreck skin. The catch: skipping three days can bring breakouts back. Here's what Redditors reach for instead.
The short answer
Best Overall Alternative10% niacinamide plus Zinc PCA for oil control · $6.00 · 30 ml
Same Active: Niacinamide10% niacinamide for noticeable oil control · $8.90 · 29.6 ml
#1
Best Overall Alternative
- Key actives: Niacinamide 10%, Zinc 1%
- Size: 30 ml
The why
This 10% niacinamide and Zinc PCA serum targets oil, visible pores, and post-acne marks. Studies support niacinamide for acne, while Redditors report strong results alongside frequent stinging, redness, breakouts, and dryness; sensitive or barrier-damaged skin should skip it.
One minus
10% concentration stings, burns, or flushes reactive skin
Good forDry Skin
The original, at a glance
- Why people love it
- Five percent niacinamide; six-year repurchase staple
#2
Same Active: Niacinamide
- Key actives: Niacinamide 10%
- Size: 29.6 ml
The why
A 10% niacinamide serum that Redditors use mainly to rein in oil, with several calling it a routine staple. The trade-off is real: daily use can feel drying, and high-strength niacinamide worsened oiliness or texture for some.
One minus
Can cause dryness when used daily
Good forOily Skin
Other alternatives worth a look
Barrier-focused formula with Centella, Panthenol, and Ceramide NP · 121 recs
Cream TextureHeavy/Rich
Barrier-support staple for retinoid recovery nights · 99 recs
Gentle
34,860ppm centella plus four soothing derivatives · 154 recs
Gel TextureGentle
60% propolis gives a lightweight, glassy finish · 54 recs
Dewy FinishUnder Makeup
Browse more
Reddit's best serums by ingredient list
Looking for a different product?