Dullness, dryness or a few more visible pores? Autumn can bring a noticeable change in how your skin looks and feels. Cooler temperatures, wind and indoor heating can leave skin feeling drier or more sensitive, while the brighter complexion you had during summer may start to look tired.
If you're deciding between niacinamide and vitamin C, it can be difficult to know which serum makes the most sense for your skin. Both can be useful, but the better choice depends on your individual skin concerns.
So, which should you reach for this autumn? Let's compare niacinamide and vitamin C, including what each ingredient is best suited to, whether you can use them together, and which options may be worth considering for your skincare routine.
Niacinamide vs Vitamin C: What Does Each Serum Do?
Niacinamide and vitamin C have different strengths, so understanding what each ingredient does can help you choose the right serum for your routine.
What does niacinamide do for skin?
Niacinamide, also known as vitamin B3, is a versatile ingredient that can suit a range of skin types. It helps support the skin barrier, making it useful when skin feels dry, tight or easily irritated. It can also help balance excess oil and reduce the appearance of pores, which can make it particularly useful for oily or combination skin.
Niacinamide may also help improve the appearance of uneven skin tone and redness, leaving the complexion looking more balanced.
What does vitamin C do for skin?
Vitamin C is best known for its antioxidant properties. It helps protect skin from oxidative stress caused by environmental factors and can support a brighter, more radiant-looking complexion.
A vitamin C serum may be particularly useful when dullness or uneven-looking skin tone is a concern. Vitamin C also contributes to normal collagen production, making it a popular ingredient in routines focused on maintaining healthy-looking skin.
Why Might Your Skincare Routine Change in Autumn?
Your skin doesn't necessarily need a completely new routine when the seasons change, but the weather and environment can affect how it feels.
If you're reassessing your skincare routine in Ireland as the weather changes, it's worth considering how cooler temperatures, wind and indoor heating can affect your skin. If your skin starts to feel more sensitive, uncomfortable or less radiant than it did during summer, it may be worth reassessing your routine.
Rather than adding products simply because it's autumn, focus on what your skin is actually telling you. Keeping your skin moisturised and supporting the skin barrier can be particularly important when dryness becomes a concern, while other changes may call for a more targeted serum.
Which Serum Is Better for Your Skin Concern?
The better choice depends on what you'd like your serum to target. As a general guide:
|
Your main concern |
Consider |
|
Dull-looking skin |
Vitamin C |
|
Uneven-looking skin tone |
Vitamin C |
|
Pigmentation and dark spots |
Vitamin C |
|
Excess oil |
Niacinamide |
|
Visible pores |
Niacinamide |
|
Redness-prone skin |
Niacinamide |
|
Supporting the skin barrier |
Niacinamide |
If dullness, uneven-looking tone or the appearance of pigmentation is your main concern, vitamin C may be the more suitable choice. Its antioxidant properties make it a popular ingredient for routines focused on brighter, more radiant-looking skin.
If vitamin C sounds like the better fit for your skin, Neostrata 15% Vitamin C + PHA Serum contains 15% vitamin C and is designed to support a brighter, more even-looking complexion.
If you're more concerned about excess oil, visible pores or supporting the skin barrier, niacinamide may be a better fit. It's a versatile ingredient that can be incorporated into routines for a range of skin types and concerns.
If niacinamide sounds like the better fit, The INKEY List Niacinamide Serum 30ml contains 10% niacinamide and 1% multi-molecular hyaluronic acid to help reduce excess oil, improve the appearance of pores and support the skin barrier.
Can You Use Niacinamide and Vitamin C Together?
Yes. Niacinamide and vitamin C can generally be used together if your skin tolerates both. However, you don't need both to build an effective routine. If you're new to active skincare ingredients, introducing one serum at a time can make it easier to see how your skin responds.
What order should you apply them?
If you're using both in the same routine, a simple morning routine could look like:
Cleanser → Vitamin C serum → Niacinamide serum → Moisturiser → SPF
Applying products from thinner to thicker textures is a useful general rule, but always follow the directions for your individual products, as formulations can differ.
And whichever serum you choose, finish your morning routine with broad-spectrum SPF. Daily sun protection remains important throughout the year, including autumn.
Find the Right Serum for Your Skin
There’s no single “best” serum for everyone. The right choice depends on your skin concerns, your existing routine and what your skin tolerates well.
Ready to find your next serum? Explore Ballyduff Pharmacy’s Serums & Oils collection for targeted options to complement your skincare routine.

