1
Eucerin - Anti-Pigment Radiance Serum
You can use this product either in the morning or at night, before your moisturizer or sunscreen.
2
SkinCeuticals - C E Ferulic with 15% L-ascorbic acid
You can use this product either in the morning or at night, before your moisturizer or sunscreen. You can use it daily, but, in case you notice signs of irritation, reducing the application to every other night might help.
3
Olay - Regenerist Regenerating Lotion
Use every day, as many times as needed. For most people, it's best to use a moisturizer twice per day. In the morning, apply it before your sunscreen (or skip the moisturizer in the morning if your sunscreen feels hydrating enough). In the evening, a moisturizer is usually the last step of a routine.
4
The Ordinary - Azelaic Acid Suspension 10%
Use your azelaic acid product once per day, either in the morning before your sunscreen or at night, before your moisturizer.
5
La Roche-Posay - Anthelios Ultra-Fluid SPF 50+ Body Sunscreen