A: Hello! We use Sodium Ascorbyl Phosphate as our form of vitamin c. This form is by far the most stable form of vitamin c to be used in skincare products. Unlike ascorbic acid, which is extremely unstable and tends to oxidize quickly. When you combine Sodium Ascorbyl Phosphate with Ferulic Acid like we do in this formula, you get an extremely effective vitamin c, anti aging serum that will also provide you with a clear and even skin tone. Thank you! Ella

A: Hello Linda. Vitamin C Serums can work for some with rosacea, however, others report that their rosacea becomes inflamed with Vitamin C Serums. Here are our other recommended serums for those with rosacea: - Seoul Ceuticals Ultra Retinol Serum + Snail Mucin. This is a highly effective anti aging retinol serum but it's also very gentle and would work well with rosacea - Seoul Ceuticals Ultra Snail + HA Serum. This is a highly effective hyaluronic acid serum that also contains snail mucin. This is also very gentle and would work well with rosacea. - Seoul Ceuticals Chebula Active Serum - This is a highly effective serum for hydrating and plumping. It's also calming and gentle for those with rosacea. Hopefully this helps. Please feel free to contact our customer support at team@seoulceuticals.com for further details. Thank you! Ella

A: Hello! We always recommend asking your doctor to confirm any skincare products would be safe to use during pregnancy.

A: Yes, all Seoul Ceuticals products are cruelty free and have been certified by Leaping Bunny.

A: Hello! Yes, this formula is indeed non-comedogenic :)

A: Hello. The ferulic acid % is .3%

A: Hello! The color of this serum should be slightly amber colored. Thank you! Ella