Ingredient pairing
Can you mix Retinal and Vitamin B3?
Fine togetherThey're fine together.
These two actually work well together, and are often formulated side by side.
Routine: You can use these together, morning or night.
RetinalWorth paying for
Skip if: pregnancy, breastfeeding, very sensitive, compromised barrier
Not in pregnancyVitamin B3Worth paying for
Skip if: very sensitive in high
General guidance, not medical advice. When in doubt, introduce one product at a time.