Short answer: Vitamin C vs niacinamide for dull skin and dark spots: you do not have to choose. Vitamin C is the usual pick for dullness and sun-related spots, used in the morning under sunscreen. Niacinamide is gentler for oily or blemish-marked skin and suits night. Neither works fast, and daily sunscreen matters more than the serum.
Key takeaways
- Vitamin C suits dullness and sun-related spots; niacinamide suits oily, sensitive or blemish-marked skin.
- Use vitamin C in the morning and niacinamide at night. You can use both in one routine.
- Neither works overnight. Judge a serum on weeks of daily use with sunscreen.
- Caution: our Brightening Face Serum contains bakuchi oil, so keep it for night. Patch test any new serum first.
What is the difference between vitamin C and niacinamide?
Vitamin C is an antioxidant, and niacinamide is a form of vitamin B3. Both are used in skincare for uneven tone, but they work in different ways. Vitamin C helps the skin cope with daily sun and pollution and is studied for slowing melanin production. Niacinamide is studied for slowing the transfer of pigment to the skin's surface and for supporting the skin barrier.
| Vitamin C | Niacinamide | |
|---|---|---|
| What it is | An antioxidant | A form of vitamin B3 |
| Usually chosen for | Dullness, sun-related spots, uneven tone | Marks left by blemishes, oiliness, a stressed barrier |
| Best time to use | Morning, under sunscreen | Morning or night |
| Common complaint | Strong, acidic formulas can sting | Well tolerated by most; high strengths can irritate some skin |
| In the GraceYes range | Natural Vit. C Face Serum, 30 ml | Brightening Face Serum, 30 ml |
Which is better for dull skin: vitamin C or niacinamide?
Vitamin C is the more common choice for dullness, because it is an antioxidant that works alongside your sunscreen during the day. If your skin looks tired mainly from sun and pollution, start there.
Our Natural Vit. C Face Serum is built on steam-distilled orange and sweet lime hydrosols, with aloe vera juice and grapeseed oil. It feels closer to water than oil and leaves no tacky film. One honest limit: its vitamin C comes from the citrus itself and we do not state a percentage, so please do not compare it number for number with a lab-made 10% or 15% serum. As its page says, it supports brightness gradually rather than overnight.
Natural Vit. C Face Serum
30 ml · ₹525
If you would like a morning vitamin C step: a water-light citrus-based serum, 30 ml.
Not for you if your skin reacts to citrus. It contains kaffir lime essential oil and citrus hydrosols, so patch test first.
Honest note: this serum is not a lab-made percentage serum. If you want a measured vitamin C strength, look for a product that states it.
Which is better for dark spots and pigmentation?
Both can help the look of dark spots, and neither works quickly. Vitamin C is usually suggested for sun-related spots. Niacinamide is often preferred for the marks that blemishes leave behind, especially on oily or easily irritated skin.
Our Brightening Face Serum takes its niacinamide from jojoba oil infused with green peas and avocado, alongside bakuchi oil, turmeric hydrosol, rose water and aloe vera juice. It is a light lotion rather than a runny drop. Again, no percentage is stated, and its page is plain that there is no set timeline for pigmentation. Patches that are spreading, symmetrical or deepening need a dermatologist, not a serum. We cover the wider picture in how to remove pigmentation and dark spots naturally.
Can I use vitamin C and niacinamide together?
Yes. The old advice against combining them has been set aside, and many people use vitamin C in the morning and niacinamide at night. If you layer both in one routine, apply the thinner, more watery product first and the creamier one after it.
With our two serums we suggest splitting them. The Brightening Face Serum contains bakuchi oil, which can make skin more sun-sensitive, so it belongs in the night routine.
Should I use vitamin C in the morning and niacinamide at night?
Use vitamin C in the morning and niacinamide at night. A simple routine looks like this:
- Morning: cleanse, a few drops of vitamin C serum, moisturiser, then sunscreen.
- Night: cleanse, niacinamide serum, then moisturiser or night cream.
The sunscreen step decides how much difference you will actually see. Use an SPF-rated product. Our own Sunscreen is a plant-oil cream with no tested SPF rating, so do not rely on it for measured protection.
Shop the routine
Add only the steps you need. Each button adds one item to your bag.
Step 2, morning
Natural Vit. C Face Serum · 30 ml · ₹525
The vitamin C step, followed by an SPF-rated sunscreen
Step 3, night
Brightening Face Serum · 30 ml · ₹525
The niacinamide step; it contains bakuchi oil, so use it at night only
Which should I choose for oily or sensitive skin?
Start with niacinamide. It is well tolerated across skin types, and our Brightening Face Serum generally suits oily and congested skin because jojoba oil hydrates without greasiness.
For sensitive skin, add one product at a time and patch test first. Our Vit. C serum has no denatured alcohol and no synthetic parfum, but it does contain mandarin kaffir lime essential oil, so it is not fragrance-free.
Frequently asked questions
Do I apply vitamin C or niacinamide first?
Thinnest first. A watery vitamin C serum goes on before a lotion-like niacinamide serum, and moisturiser goes over both.
How long before I see results?
There is no fixed timeline. Changes in tone are gradual and vary from person to person, so judge a serum on steady daily use with sunscreen, not on a few days.
Are these serums free from parabens and silicones?
Yes. Both pages list no parabens, PEGs, silicones, denatured alcohol or synthetic fragrance. Both do contain a preservative (Sensicare), because they are water-based.
Can I use them during pregnancy?
Ask your doctor before starting any new serum while pregnant or nursing.
Can I use these serums every day?
Usually, if your skin stays comfortable. Begin with a few days a week, patch test first, and stop if you notice burning, itching or a rash.
Do I still need sunscreen with a vitamin C serum?
Yes. No serum replaces sunscreen, and sun exposure can undo gradual gains in tone. Choose an SPF-rated product.
Can I use them with retinol or acids?
Add one new product at a time. If you use a prescription retinoid or acid, ask your dermatologist before layering a new serum.
What mistakes should you avoid with vitamin C and niacinamide?
- Skipping sunscreen. Spot-fading ingredients cannot offset daily sun.
- Expecting results in days. Changes in tone are gradual.
- Starting two new serums on the same day. Add one at a time so you know what your skin is reacting to.
- Using the Brightening Face Serum in the morning. It contains bakuchi oil, which can make skin more sun-sensitive.
Is it safe? Patch test and when to ask a doctor
Patch test first. These are cosmetics, not treatments. Try any new serum on the inner forearm for 24 hours before using it on your face, and stop if you notice burning, itching or a rash. See a doctor or dermatologist about pigmentation that is spreading, changing or not improving.
In short: vitamin C in the morning, niacinamide at night, sunscreen every day.
Our motto: to make the cleanest beauty products
If you'd like to build a morning-and-night routine, browse our face care range.
Browse our face care range →More from the Journal: Serum for dry skin: what it does and how to layer it in winter.