C E Ferulic® has been clinically tested and is safe to use after professional laser treatments. Always consult with a physician or provider for individualized post-procedure care.

Upon breaking the plastic and opening, the color of C E Ferulic® can vary, ranging from relatively clear to pale yellow to amber. Due to the key ingredients in the formula, the vitamin C serum will begin to darken in color over time. Please note that this does not mean the formula has become ineffective.

It is normal for SkinCeuticals ferulic acid serum for the face to darken after opening due to air and light exposure. The formula will remain effective. It is recommended to be used within 3-6 months after opening with daily application of 4-5 drops to the face, neck, and chest.

We do not use preservatives in our products. Since there is no fragrance added to this ferulic acid serum, what you are likely smelling is the natural scent of the vitamins within the formula.

C E Ferulic® should be the first step as part of your morning regimen, while a retinol or retinoid should be used as one of the final steps of your nighttime regimen. There is no conflict or issue to use both within the same daily skincare regimen. Please consult your skincare physician with any questions.

C E Ferulic® should be used once a day in the morning on dry or damp skin (4-5 drops on the face and neck) due to its protective elements that help keep your skin safe from environmental aggressors, such as cigarette smoke and diesel engine exhaust. C E Ferulic® can be layered prior to makeup application. If you would like to incorporate a nighttime antioxidant into your skincare regimen, you can use Resveratrol B E. If you are on a topical prescription medication, please speak to your doctor regarding the order of layering these products.

We have not tested on this specific population. Therefore, we advise you to please speak with your healthcare provider regarding whether C E Ferulic® is safe to use while pregnant.

Our SkinCeuticals C E Ferulic® study looked exclusively at 12-week data where we saw significant results.

C E Ferulic® is recommended for people with wrinkles and/or fine lines. Every skin type is different, so while some people with sensitive skin will have no issue using C E Ferulic®, some might. We offer a variety of antioxidant options so that there is a suitable option for every skin type.

Yes, we recommend pairing your vitamin C serum with a broad spectrum sunscreen. While C E Ferulic® does not replace SPF, it does enhance the effects of SPF. The pairing of the two will provide you with more advanced broad-spectrum UV and environmental protection.