- Should I use sunscreen over this serum?
Answer: Yes, if you use the serum during the day, we recommend using at least SPF 15 over it.
- Is it dangerous if you feel a tingling sensation when applying this?
Answer: No, a tingling sensation can occur and it is a completely natural reaction due to the difference between the pH balance of vitamin c and the skin's own.
- Can this be combined with other active ingredients?
Answer: We do not recommend combining this with other exfoliants such as AHA, BHA or Retinol.
- What is the best way to store this serum?
Answer: Vitamin C is sensitive to light, heat and air. We therefore recommend storing this in the fridge to avoid oxidation.