How to use them
Split them up: use Vitamin C in your morning routine (under sunscreen) and Salicylic Acid at night.
- 1CleanseGentle cleanser, pat dry
- AMVitamin Cthen moisturiser and SPF 50
- PMSalicylic Acidthen moisturiser
What Salicylic Acid does
An oil-soluble beta-hydroxy acid that gets inside pores to dissolve the sebum and dead skin behind blackheads, whiteheads and breakouts. It is the go-to for oily, acne-prone skin.
- Typical strength
- 0.5% – 2%
- When
- AM/PM
- Irritation
- Best for
- Oily And Combination skin
Everything that pairs with Salicylic Acid →
What Vitamin C does
A powerful antioxidant that brightens dull skin, fades dark spots and boosts your sunscreen's protection against free radicals. Pure L-ascorbic acid works best at a low pH and oxidises (turns orange) quickly.
- Typical strength
- 10% – 20%
- When
- AM
- Irritation
- Best for
- Normal, Oily, Combination And Dry skin
Everything that pairs with Vitamin C →
Frequently asked questions
Can I use Salicylic Acid and Vitamin C together?
Yes, but not at the same time. Pure vitamin C is already acidic. Layering Salicylic Acid on top lowers the pH further and raises the risk of stinging and irritation. Use vitamin C in the morning and Salicylic Acid at night.
Which goes first, Salicylic Acid or Vitamin C?
Apply Vitamin C first, then Salicylic Acid. The general rule is thinnest to thickest texture, and lowest pH first. For this pair, though, it is better not to layer them in the same routine at all.
Should I use Salicylic Acid in the morning or at night?
Salicylic Acid: works morning or night. Use as a cleanser daily or a leave-on 2% serum 3–4 times a week. It can dry out skin, so moisturise well.
Should I use Vitamin C in the morning or at night?
Vitamin C: best in the morning. Apply in the morning on clean skin before moisturiser and sunscreen. Store it away from light and heat, and throw it out once it turns dark orange.
Is Salicylic Acid with Vitamin C safe during pregnancy?
Neither is a known risk in normal cosmetic amounts, but guidance varies for Salicylic Acid. Check with your doctor.