How to use them
Use them in the same routine morning or night. Apply Niacinamide first, then Sulfur, moving from thinnest to thickest texture. Finish with sunscreen in the morning.
- 1CleanseGentle cleanser, pat dry
- 2Niacinamide2% – 10%, wait about 1 minute
- 3Sulfur3% – 10%
- 4Moisturiserseal everything in
What Niacinamide does
An all-rounder that controls oil, strengthens the skin barrier, reduces redness and evens out tone. It gets along with almost every other active, which is why it is in so many routines.
- Typical strength
- 2% – 10%
- When
- AM/PM
- Irritation
- Best for
- Oily, Combination, Normal, Sensitive And Dry skin
Everything that pairs with Niacinamide →
What Sulfur does
An old-school acne fighter that dries out oily spots, gently exfoliates and has antibacterial and antifungal activity. It is gentler than benzoyl peroxide for many people, though it has a distinctive smell.
- Typical strength
- 3% – 10%
- When
- AM/PM
- Irritation
- Best for
- Oily, Combination And Sensitive skin
Everything that pairs with Sulfur →
Trying to choose one? Read Niacinamide vs Sulfur: which is better for your skin.
Frequently asked questions
Can I use Niacinamide and Sulfur together?
Yes, it is safe. There is no known chemical conflict between Niacinamide and Sulfur, and neither makes the other less effective. They share a goal (oil control and acne), so together they reinforce each other.
Which goes first, Niacinamide or Sulfur?
Apply Niacinamide first, then Sulfur. The general rule is thinnest to thickest texture, and lowest pH first.
Should I use Niacinamide in the morning or at night?
Niacinamide: works morning or night. Use morning, night or both, after water-based serums. 4–5% is enough for most people. Very high percentages can cause flushing on sensitive skin.
Should I use Sulfur in the morning or at night?
Sulfur: works morning or night. Use as a spot treatment, a clay mask or a short-contact wash. It can be drying, so moisturise afterwards.
Is Niacinamide with Sulfur safe during pregnancy?
Neither is a known risk in normal cosmetic amounts, but guidance varies for Sulfur. Check with your doctor.