To use niacinamide serum, cleanse your face, apply a few drops to clean skin, let it absorb for about a minute, follow with moisturizer, and add sunscreen in the morning. Start every other day for the first week, then move to daily if your skin stays comfortable. Niacinamide isn’t sensitive to sunlight, so morning, night, or both all work. Here is the full routine, including how much to use, how often, and what to avoid.
Before You Start
Pick the Right Strength
Most research on niacinamide uses strengths between 2% and 5%, and 5% is a good starting point for most skin types. Higher strengths can cause tingling or redness, and they don’t always work better.
Do a Patch Test
Put a small amount on your jawline or behind your ear and leave it for 24 hours. If you get redness, itching, or stinging, don’t use it on your face.
How to Use Niacinamide Serum, Step by Step
|
Step |
What to do |
Why |
|
1 |
Cleanse with a gentle face wash, then pat dry or leave your skin slightly damp |
Clean skin absorbs the serum properly |
|
2 |
Apply a hydrating serum first, if you use one |
Adds moisture before the active step |
|
3 |
Apply niacinamide serum |
This is the step that targets oil, pores, and uneven tone |
|
4 |
Wait 30 to 60 seconds |
Let it absorb before the next layer |
|
5 |
Apply moisturizer |
Locks everything in and supports your skin barrier |
|
6 |
Apply sunscreen, in the morning only |
Niacinamide doesn’t protect you from the sun |
How Much to Use
A few drops are enough for your face and neck. If your product’s directions say to apply it only to certain areas, follow those instead. Using more doesn’t speed up results, and it can leave your skin sticky or cause pilling.
Morning or Night?
|
Time |
Why use it |
Best for |
|
Morning |
Helps control oil through the day and sits well under sunscreen and makeup |
Oily, combination, and acne-prone skin |
|
Night |
Fits a simpler evening routine and works while you sleep |
Dry or sensitive skin |
|
Both |
Gives steady use through the day |
Oily or acne-prone skin, once your skin has adjusted |
Unlike retinol, which is usually kept for the evening, and vitamin C, which many people save for the morning, niacinamide has no sun-sensitivity issue. The best time is whichever you will actually stick to.
The Right Order in Your Routine
Apply thinner products first and thicker ones last, so each one can do its job.
|
Morning |
Evening |
|
1. Cleanser |
1. Cleanser |
|
2. Hydrating serum (optional) |
2. Hydrating serum (optional) |
|
3. Niacinamide serum |
3. Niacinamide serum |
|
4. Moisturizer |
4. Moisturizer |
|
5. Sunscreen |
Our guide on whether sunscreen or moisturizer goes first covers the last two steps in the morning.
How Often to Use It
|
Stage |
How often |
What to watch for |
|
Week 1 |
Every other day |
Mild tingling is okay; strong stinging is not |
|
Weeks 2 to 3 |
Once a day, morning or night |
Skin should feel comfortable |
|
After 3 to 4 weeks |
Morning and night, if your skin handles it and you want to |
Skip a day if your skin feels tight or red |
How to Use It by Skin Type
|
Skin type |
How to use it |
|
Oily |
Use it in the morning, and add a night application later, with a light moisturizer |
|
Acne-prone |
Start once a day, pair it with a gentle face wash, and don’t add other new actives at the same time |
|
Dry |
Use it at night on slightly damp skin, followed by a richer moisturizer |
|
Combination |
Use it in the morning, and add moisturizer to the drier areas |
|
Sensitive |
Start two or three times a week, and stop if irritation continues |
What to Pair It With
|
Ingredient |
Together with niacinamide? |
Notes |
|
Hyaluronic acid |
Yes |
Adds hydration and comfort |
|
Vitamin C |
Usually yes |
If your skin flushes, use them at different times. Our guide on how to use vitamin C serum at night covers a routine |
|
Alpha arbutin |
Yes |
Our guide on using alpha arbutin with niacinamide explains how |
|
Retinol |
Yes, with care |
Alternate nights while your skin adjusts |
|
Exfoliating acids (AHA, BHA) |
Yes, with care |
Don’t layer too many actives at once |
|
Sunscreen |
Always in the morning |
Protects the progress you make |
How Long Until You See Results
|
Timeframe |
What you may notice |
|
Weeks 1 to 2 |
Usually no visible change, though your skin may feel calmer |
|
Weeks 4 to 6 |
Less shine and a smoother look as oil is controlled |
|
Weeks 8 to 12 |
Pores and dark marks look better with consistent use |
These are typical ranges, not promises. Consistency and sunscreen matter more than anything else.
Common Mistakes
|
Mistake |
What happens |
The fix |
|
Using too much |
Pilling, stickiness, or irritation |
A few drops are enough |
|
Starting daily right away |
Tingling or redness |
Start every other day |
|
Skipping moisturizer |
Tight, dry skin |
Always follow with moisturizer |
|
Skipping sunscreen in the morning |
Dark spots can return |
Wear it every morning |
|
Adding several new actives at once |
Irritation, and you can’t tell what’s working |
Add one product at a time |
|
Judging after one week |
You quit before it can work |
Give it 4 to 8 weeks |
How to Use Arwa’s Anti Acne Serum (5% Niacinamide)
Arwa’s Anti Acne Serum (5% Niacinamide) is a 30 ml serum with 5% niacinamide, plus sodium hyaluronate, aloe, witch hazel, neem oil extract, and potassium azeloyl diglycinate. The directions on its product page are:
|
Step |
Directions on the product page |
|
1 |
Wash your face with Arwa Face Wash |
|
2 |
Apply a small amount of the serum to affected areas |
|
3 |
Gently rub it in and let it absorb completely |
|
4 |
Follow with Arwa Moisturizer at night |
|
5 |
Use SPF 50+ sunscreen during the day if you are going outdoors |
Follow those directions, and patch test first, since plant extracts like witch hazel and neem can irritate some sensitive skin. The product page lists a rating of 4.95 out of 5 from 40 reviews, and reviewers mention fewer breakouts, calmer redness, and smoother-looking skin after a few weeks.
You can pair it with Arwa’s Fresh Up Face Wash, then a moisturizer such as the Brightening Moisturizer for oily skin or the Glow-up Moisturizer for dry skin. In the morning, the Broad Spectrum Sunscreen (SPF 50+) goes on as the last step.
Frequently Asked Questions
Can I Use Niacinamide Serum Every Day?
Yes, most people can. Start every other day for the first week, then move to daily if your skin stays comfortable.
Should Niacinamide Go Before or After Moisturizer?
Before. Apply the serum to clean skin, wait 30 to 60 seconds, then apply your moisturizer on top.
Can I Use Niacinamide Serum Morning and Night?
Yes, once your skin has adjusted. Start with one application a day, then add the second if your skin handles it well.
Can I Use Niacinamide With Vitamin C?
Generally yes. They do different jobs, and most people use them together without trouble. If your skin flushes, use them at different times of day.
What if My Skin Tingles or Breaks Out?
Mild tingling can happen when you start, so use the serum less often. If redness continues or you break out, stop using it. Niacinamide itself isn’t known to cause breakouts, so another ingredient or the formula is the more likely cause. If it persists, check with a dermatologist.
Final Thoughts
Cleanse, apply a few drops, wait a minute, moisturize, and add sunscreen in the morning. Start slowly, and give it 4 to 8 weeks before deciding whether it works for you.
If you want to try a 5% option, the Anti Acne Serum (5% Niacinamide) is the one to start with, and you can see the rest of the range in the serums collection.