If you’ve ever Googled how to use niacinamide serum, you’re likely already halfway down the skincare rabbit hole—and honestly, we love that for you. Niacinamide, a.k.a. Vitamin B3, is one of those rare multitasking ingredients that doesn’t just sit pretty on your shelf—it gets to work. Brightening. Calming. Strengthening. Smoothing. It’s the quiet overachiever of your routine.
But knowing when, how, and why to use it? That’s where it gets really effective.
When to Use Niacinamide Serum in Your Routine
You might be wondering when to use niacinamide serum—and the answer is: both morning and night. It’s that gentle and that essential.
In the AM, it teams up beautifully with SPF to help defend against pollution and sun-induced pigmentation. In the PM, it pairs perfectly with your calming, reparative products. In either case, apply it after cleansing and before your heavier creams.
The best time to use niacinamide serum, though, is when your skin is feeling dull, irritated, or unbalanced. That’s when you’ll see its glow-boosting, redness-reducing, and oil-regulating benefits the most.
How to Apply Niacinamide Serum (and Keep It Simple)
Minimal steps. Maximum payoff.
- Cleanse – A Gentle, non-stripping cleanser is ideal.
- Damp skin = happy skin – Niacinamide works best when applied to slightly moist skin.
- Apply 2–3 drops – Use clean fingertips to pat or press it onto your face and neck.
- Follow up – Layer on moisturizer, SPF (if daytime), or your favorite barrier cream (if night).
Learning how to apply niacinamide serum doesn’t need to be complex. It layers well with most ingredients (like hyaluronic acid and peptides), but if you’re using exfoliants or retinoids, alternate or buffer with a moisturizer.
The Bottom Line
This isn’t a one-hit wonder. Niacinamide is the kind of skincare ingredient that works quietly, consistently, and deeply. Use it daily and you’ll start to notice fewer breakouts, a more even tone, a soft glow, and a calm, confident skin barrier.
Your skin deserves more than trends. It deserves ingredients that deliver.
Try our niacinamide-powered formula, Habitude Skin On Holiday Serum—gentle, effective, and beautifully made—[right here].