Niacinamide in skincare: useful, with limits
Understand the ingredient name, read the full formula and avoid choosing a product by the biggest percentage alone.
Niacinamide appears in serums, creams and ingredient conversations so often that it can feel like an essential category of its own. It is more useful to ask where it already appears in your routine, what the finished product offers, and whether another purchase adds something you actually want.
The considered take: Consider the finished product and your routine. A concentration on the front of a bottle is not a personalised result forecast.
Know the name on the ingredient list
Niacinamide is also called nicotinamide, a form of vitamin B3. DermNet describes research into topical formulations while noting that evidence must be understood in context. [1]
An ingredient name can help you recognise overlap. It does not tell you how a cream will spread, whether a serum feels tacky, or whether the complete formula suits you. Those remain product-level questions.
Put percentages in perspective
DermNet summarises a small, twelve-week study of a 5% formulation in fifty women. That finding is about a studied formulation and group; it cannot guarantee identical results from every niacinamide product. [1]
A larger number does not answer the practical question of which product belongs in your routine. Compare directions, texture, the other ingredients and your total spend. Avoid buying several overlapping products simply to increase the combined numbers on your shelf.
Compare a serum with a cream
The current Beauty of Joseon Glow Serum ingredient list includes niacinamide, propolis extract and betaine salicylate. Do not reduce this formula to niacinamide alone or assume an older percentage description applies to every pack. [2]
The Jumiso Niacinamide 5+ Overnight Cream is a different format. A serum and a cream are not interchangeable just because they share an ingredient name. Decide which step you are trying to change before comparing them.
Make the trial easy to assess
If you choose to try one, keep a note of the exact product and the rest of your routine. Compare how it fits your day, not just how it looks in a close-up photograph. Change one item at a time, and follow the labelled directions.
If your main concern needs diagnosis or treatment, ask a qualified professional. A cosmetic ingredient guide cannot establish what is causing a skin change.
Explore products mentioned in this guide
These are examples from the MiGlow collection, not a prescription or a promise of results. Check the current pack, full ingredients and directions before choosing.
Beauty Of Joseon
BEAUTY OF JOSEON ~ Glow Serum – Propolis + Niacinamide
Serums/Ampoules
In stock
JUMISO
JUMISO Niacinamide 5+ Overnight Cream – 50ml
Moisturisers · 50ml
In stock
A few useful questions
Should I choose the highest concentration?
A percentage alone is not a reliable way to choose the best finished product for you.
Must I have a separate niacinamide serum?
No. Read the products you already use; the ingredient may already be part of a step you enjoy.
Continue your discovery: our ingredient-list reading guide.
Sources and editorial notes
- DermNet: nicotinamide
- Beauty of Joseon: current Glow Serum information
- Jumiso: Niacinamide 5+ Overnight Cream ingredients
Sources checked 28 October 2026. Manufacturer pages may describe a different market or reformulation. The packaging supplied with your product is the reference for its ingredients and directions. MiGlow sells products mentioned here; product links are commercial links. No independent product testing or dermatologist review is claimed.
General cosmetic education, not individual medical advice. A product or ingredient may not suit every person. Seek qualified advice for persistent irritation or a diagnosed skin condition.
