Barrier support. More even-looking skin. Better moisture retention. There’s a reason Niacinamide keeps appearing in well-formulated skincare.
Niacinamide is everywhere.
Serums. Moisturisers. Eye creams. Treatments.
And unlike some skincare ingredients that seem to appear almost overnight, niacinamide has earned its staying power.
Why?
Because it doesn't have just one job.
Niacinamide can support several aspects of healthy skin — from the skin barrier and moisture retention to the appearance of uneven skin tone.
But perhaps what we like most about it is that it can do all of this without making skincare more complicated.
First, What Exactly Is Niacinamide?
Niacinamide — also known as nicotinamide — is a form of vitamin B3.
In skincare, it's what we would call a multifunctional ingredient.
In simple terms?
It can do more than one useful thing.
It's commonly included in formulations designed to support the skin barrier, improve the appearance of uneven skin tone and help maintain healthy-looking skin.
And unlike ingredients that are primarily focused on exfoliating or resurfacing, niacinamide can fit beautifully into a routine centred around support rather than stimulation.
Niacinamide: one ingredient, multiple supporting roles. A versatile form of vitamin B3 with a lot to offer healthy skin.
So, What Does Niacinamide Actually Do for Your Skin?
This is where niacinamide gets interesting.
Rather than targeting one isolated concern, it can support several processes involved in keeping skin looking and feeling healthy.
01 — IT HELPS SUPPORT YOUR SKIN BARRIER
This is the part we're particularly interested in at DY•5.
Your skin barrier relies on a carefully organised mixture of lipids — including ceramides — to help maintain its protective structure.
Niacinamide can support processes involved in the skin's own production of barrier lipids, including ceramides.
Why does that matter?
Because a well-supported skin barrier is better equipped to perform one of its most important jobs:
Keeping essential moisture in and helping protect the skin from the external environment.
02 — IT CAN HELP SUPPORT MOISTURE RETENTION
Hydration isn't only about putting water onto your skin.
Keeping that water there matters too.
Because niacinamide can support healthy barrier function, it can also play a role in helping the skin maintain moisture and minimise excessive water loss.
This is why we don't necessarily think about niacinamide as a "hydrating ingredient" in the same way we think about hyaluronic acid.
They have different jobs.
Hyaluronic acid helps support water-based hydration.
Niacinamide helps support the skin barrier involved in retaining it.
Different roles. Same bigger picture.
03 — IT CAN HELP WITH THE APPEARANCE OF UNEVEN SKIN TONE
Niacinamide is also widely used in skincare designed to improve the appearance of uneven pigmentation and skin tone.
Importantly, it doesn't work by aggressively exfoliating the surface of your skin.
Instead, its role in pigmentation is associated with influencing how pigment is transferred within the skin.
Over time, this can help skin appear more even and balanced.
And that's an important distinction.
We're not interested in promising "perfect" skin.
We're interested in supporting healthy-looking skin.
04 — IT CAN HELP SKIN LOOK SMOOTHER AND MORE BALANCED
This is where niacinamide's multitasking reputation starts to make sense.
By supporting several aspects of healthy skin function, it can contribute to skin that appears:
Smoother.
More even.
Better hydrated.
More resilient.
Not because it's a miracle ingredient.
But because it's doing several useful jobs within the same formulation.
Does More Niacinamide Mean Better Results?
This is something worth talking about.
Because skincare has become increasingly obsessed with percentages.
5% niacinamide.
10% niacinamide.
20% niacinamide.
And it's easy to assume that the bigger number must mean the better product.
But formulation doesn't work quite like that.
A higher concentration of an ingredient doesn't automatically mean a better result — and it doesn't necessarily mean a better formulation for your skin.
What matters is whether the concentration makes sense for the product, what it's designed to do and what else has been formulated alongside it.
That's why at DY•5, we're less interested in chasing the biggest number on the bottle.
We're interested in the formula as a whole.
Effective formulation is about balance — not simply bigger percentages.
Niacinamide + Ceramides: Why We Like Them Together
This pairing makes a lot of sense when you understand what each ingredient does.
CERAMIDES
Ceramides are lipids naturally present within the skin and form an essential part of the skin barrier.
Using ceramides within skincare can help replenish and support that lipid structure.
NIACINAMIDE
Niacinamide, meanwhile, can support processes involved in the skin's own production of barrier lipids, including ceramides.
So rather than doing exactly the same thing, the two ingredients approach barrier support from complementary directions.
And that's exactly how we think good skincare should work.
Not one hero ingredient trying to do everything.
Considered ingredients, each with a reason for being there.
What About Niacinamide and Hyaluronic Acid?
Another pairing we like.
Again, they're not doing the same job.
Hyaluronic acid is a humectant that helps attract and hold water.
Niacinamide can help support healthy barrier function and moisture retention.
Put simply:
One helps with hydration.
The other helps support the skin that's trying to hold onto it.
This is why looking at an entire ingredient list — rather than picking one "hero" ingredient from the front of the bottle — tells you much more about how a skincare product has been formulated.
Do You Need a Separate Niacinamide Serum?
Not necessarily.
And this is something we think gets lost in modern skincare.
Once we learn about an ingredient and its benefits, the natural reaction is:
Do I need to buy a serum for that?
But niacinamide doesn't have to exist in a standalone product to have a place in your routine.
It can be thoughtfully incorporated into moisturisers, serums and other formulations alongside complementary ingredients.
That's one of the reasons multifunctional ingredients are so useful.
They allow a well-formulated product to address more than one need without adding another bottle to your routine.
Multitasking Without Making Skincare Complicated
There's a certain irony to modern skincare.
We have a product for hydration.
Another for barrier support.
Another for uneven tone.
Another for texture.
Another because someone on TikTok told us we needed it.
And suddenly, skincare has become a ten-step project.
It doesn't have to be.
Niacinamide is a good example of why.
Its value isn't that it does everything.
It doesn't.
Its value is that it can support several aspects of healthy skin within one considered formulation.
And that fits perfectly with how we think about skincare at DY•5.
Considered ingredients. Purposeful formulations. Fewer unnecessary steps.
Because effective skincare doesn't need to be complicated.
It just needs to make sense.