Super Pure Niacinamide + Zinc Serum — Reddit Reviews
by Glossier
Updated November 10, 2026
5% niacinamide serum with loyal six-year repurchases; can wreck skin.
What the community says
A 5% niacinamide and zinc serum that Redditors keep repurchasing for routine consistency and calmer-looking skin. Long-term users call it one of the few niacinamide formulas that worked for them, yet others report it wrecked their skin, so YMMV.
What this means for you
Backed by 8 threads from r/SkincareAddiction, r/30PlusSkinCare and 2 more.
Read the threads ↓What people love
- Five percent niacinamide; six-year repurchase staple
- Several Redditors say it was among the first products that helped their skin
Watch out for
- Skipping three days can bring breakouts back
- One user says it completely wrecked their skin
Product details
Product Traits
Key Ingredients
Based on limited Reddit discussion so far
Where to buy
What the science says
Niacinamide has some evidence for acne, with most studies finding it helped and often working about as well as clindamycin applied to the skin 1. For dark spots, niacinamide has some evidence, since all four studies that tested it directly found it helped fade them 2. Zinc for acne is not proven yet, because results were split and in one study it worked less well than tea lotion 3. Niacinamide has some evidence for firmer skin and fewer wrinkles, though only two studies tested it directly for anti-aging 4.
- Niacinamide for acne Some evidence · 17 studies
- Niacinamide for hyperpigmentation Some evidence · 17 studies
- Zinc for acne Not proven yet · 16 studies
- Niacinamide for anti-aging Some evidence · 8 studies
Research context, not treatment advice. Studies are about the ingredient, not necessarily this exact product.
How we grade researchFull ingredient list · 13
Glossier Super Pure Niacinamide + Zinc Serum ingredients
Water/Aqua/Eau, Niacinamide, Glycerin, Propanediol, Zinc PCA, Lonicera Japonica (Honeysuckle) Flower Extract, Lonicera Caprifolium (Honeysuckle) Extract, Citric Acid, Allantoin, Hydroxyethylcellulose, Polysorbate 60, Disodium Phosphate, Sodium Phosphate
Listed in label order, highest concentration first. Linked ingredients have their own page.
Real Reddit threads — 8 mentions across 8 threads
Glossier Super Pure Niacinamide + Zinc Serum on Reddit, in one place — 8 threads from r/SkincareAddiction, r/30PlusSkinCare and 2 more, summarized.
“serum: glossier super pure (niacinamide and zinc - been repurchasing this for over 6 years now)”
Positive
“super pure was one of the first things that i found helped my skin.”
Positive
“super pure didn’t clear my skin over night, but nowadays when I go 3+ days without it I will break out”
Positive
“most Niacinamides made it worse.”
Mentioned
“Glossier’s was the only one I tried (their “super pure” line) that didn’t.”
Mentioned
“Another choice would be glossier super pure with 5% niacinamide”
Mentioned
“should I also look for a 'super pure 5% niacinamide'? as well”
Mentioned
“AM products: Glossier super pure (niacinamide+ zinc) serum”
Positive
“citric acid and niacinamide are both in the glossier serum I use”
Positive
“My current routine: AM products: Glossier super pure (niacinamide+ zinc) serum”
Positive
“I occasionally also use Glossier Super Pure Niacinamide & Zinc”
Cautionary
“especially the glossier, that thing wrecked me many years ago”
Cautionary
“I've been suspicious of the Glossier, that's good to know. I'll put that on pause for a bit.”
Cautionary
“or a niacinamide serum like this one https://www.glossier.com/products/super-pure”
Positive
“(5% or less) underneath on wet skin”
Positive
“and come on top immediately with the cream”
Positive
