How to use them
Use them in the same routine in the morning. Apply Ferulic Acid first, then Sulfur, moving from thinnest to thickest texture. Finish with sunscreen in the morning.
- 1CleanseGentle cleanser, pat dry
- 2Ferulic Acid0.5%, wait about 1 minute
- 3Sulfur3% – 10%
- 4Moisturiserthen SPF 50 in the morning
What Ferulic Acid does
A plant antioxidant best known for stabilising vitamins C and E. Together the trio roughly doubles photoprotection compared with vitamin C alone.
- Typical strength
- 0.5%
- When
- AM
- Irritation
- Best for
- Normal, Dry, Combination And Oily skin
Everything that pairs with Ferulic Acid →
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 →
Frequently asked questions
Can I use Ferulic Acid and Sulfur together?
Yes, it is safe. There is no known chemical conflict between Ferulic Acid and Sulfur, and neither makes the other less effective.
Which goes first, Ferulic Acid or Sulfur?
Apply Ferulic Acid first, then Sulfur. The general rule is thinnest to thickest texture, and lowest pH first.
Should I use Ferulic Acid in the morning or at night?
Ferulic Acid: best in the morning. Use in the morning under sunscreen, ideally in a combined C + E + Ferulic serum.
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 Ferulic Acid with Sulfur safe during pregnancy?
Neither is a known risk in normal cosmetic amounts, but guidance varies for Sulfur. Check with your doctor.