The Ordinary Niacinamide: Reddit Experiences and Product Guide
One linked Reddit example describes a positive routine; another says it is too early to judge results. Start with those differences, then explore the separate review analysis and buying options.
What helps you decide?
A positive routine
One person names the 10% + Zinc 1% serum and reports using it most nights. That tells us about their experience, not how it will work for everyone.
Too early to attribute results
Another person had used it three times alongside other actives. Their report cannot separate the serum's effects from the rest of the routine.
See the serum's rating, review themes and buying options. That page's historical retail-review sample is separate from these two Reddit examples; it is not a Reddit score.
Sources and product identity
Read the linked reports, product differences and source notes
Which product is this?
Product: The Ordinary Niacinamide 10% + Zinc 1% Serum.
Brand: The Ordinary (DECIEM). Form: Water-based serum. Key listed ingredients: Niacinamide (vitamin B3), Zinc PCA.
Official source (US, accessed 2026-09-27): theordinary.com product page. The brand describes it as a serum for blemish-prone skin and lists a water-based formulation. Ingredient list on the official page: Aqua (Water), Niacinamide, Pentylene Glycol, Zinc PCA, Dimethyl Isosorbide, Tamarindus Indica Seed Gum, Xanthan Gum, Isoceteth-20, Ethoxydiglycol, Phenoxyethanol, Chlorphenesin. The brand notes formulations may vary by time and region of purchase.
How to tell it apart from similar products
The Ordinary sells several niacinamide items. They are different products:
- Niacinamide 10% + Zinc 1% Serum — this page's subject. Water-based serum, dropper bottle.
- Niacinamide 5% Face & Body Emulsion — lower strength, emulsion form, larger format. A different product.
If you are reading a Reddit thread, confirm the thread names "Niacinamide 10% + Zinc 1%" (or shows a readable label naming that exact product) before treating the comment as about this product. Threads that say only "The Ordinary niacinamide" may refer to the 5% Emulsion or to other items not verified here.
What individual Reddit commenters have reported
The following are individual self-reports from posts that were opened and read. They are not a representative sample and do not establish a majority view, efficacy rate, or safety profile.
- r/30PlusSkinCare — "Changing brands (the ordinary)" (post opened 2026-09-27). One commenter names Niacinamide 10% + Zinc 1% as their "holy grail" used most nights. A single positive self-report that explicitly identifies this product.
- r/Blackskincare — "Fading PIH Scars" (post opened 2026-09-27). One commenter mentions adding this serum alongside other actives for about a week (three applications) and states it was too early to attribute results to it. A neutral, non-attributive mention that explicitly names the product.
No negative self-report naming "Niacinamide 10% + Zinc 1%" was found in the opened set. The absence of a negative report is not evidence that no negative experience exists.
Background note (not product-specific evidence)
Some Reddit threads discuss niacinamide sensitivity or reactions in general terms. Those discussions do not always name this specific serum and are not counted as evidence for or against this product. For example, threads about niacinamide intolerance in r/30PlusSkinCare describe ingredient-level reactions without product attribution.
Sources and limits
Product identity above is from the official US product page linked in the first section. The two Reddit links above accompany the individual reports described here. These self-reports do not establish a majority view or product effects. This page does not publish a sentiment score, a ranking, a percentage of users, or a time-to-result claim. Current retail price and the current formula list were not independently verified beyond the official page text.
Official product facts are verified from the brand page. Reddit material presented here is limited to those two linked threads; it is not a complete survey.
For how Revuei evaluates review conclusions before publication, see Review Methodology. To report an error, use Corrections.