Tested on animals:Yes
SkinCeuticals C E Ferulic Combination Antioxidant Treatment comes complete with all manner of anti-aging claims, but the ones you can bank on with this product (based on a significant amount of research) are its abilities to reduce free radicals and to defend skin against oxidative stress, as well as improving multiple signs of aging. It reportedly contains 15% ascorbic acid, a form of vitamin C considered an excellent antioxidant and anti-inflammatory agent (Experimental Dermatology, 2003 and Bioelectrochemistry & Bioenergetics, 1999).
Packaged in a dropper, this lightweight liquid formula is fragrance free and suitable for all skin types (including the acne prone). Those with rosacea or very sensitive skin may wish to proceed with caution, as such potent concentrations of ascorbic acid can be potentially sensitizing—a patch test for a few days will determine how your skin will respond to this formula.
15% ascorbic acid, when used on a regular basis and in conjunction with daily usage of a broad-spectrum sunscreen, can make a significant improvement in the appearance of sun damage, uneven skin tone and strengthen the skin's barrier. Vitamin C can also help boost the free-radical protection ability of your sunscreen when worn underneath (Skin Research & Technology, 2008 and The Journal of Pathology, 2007).
This product's pH of 3 is good news for you, as ascorbic acid is stable only in low-pH formulations (Dermatologic Surgery, 2001). In addition, present in this water-based antioxidant serum are vitamin E and ferulic acid. Vitamin E, appearing here as alpha tocopherol, also has a well-established reputation as an effective antioxidant.
Ferulic acid is relatively new to the skin-care scene, but earlier research suggests that it provides antioxidant and sun-protective benefits to skin while enhancing the stability of topical applications of vitamin E (International Journal of Pharmaceutics, 2000 and Anticancer Research, 1999).
As research into this and similar compounds (such as caffeic and ellagic acid) continues, we suspect we will see more antioxidant-based products enhanced with them, which is great news for keeping skin healthy and protecting it from further damage.
C E Ferulic Combination Antioxidant Treatment earns our highest rating for the fact that it is a potent, well-formulated treatment that doesn't include needless problematic ingredients. It is on the pricey side, but you'll find this is a treatment that will likely deliver on your expectations. We should note that the dropper isn't the ideal form for this product—see our note below for more on this.
Note: This serum is dispensed via a dropper applicator. Although not the ideal method to dispense a serum that contains light- and air-sensitive ingredients, sometimes this type of packaging is necessary due to formulary requirements. When that's the case, the goal is to keep the bottle opening as small as possible, the bottle should be opaque or specially coated to protect the contents from light, and you should use the serum up within three months of opening.
- Light-as-water texture suitable for all skin types.
- Helps repair skin's barrier and reduce inflammation.
- Can lighten post-breakout red marks.
- Can dramatically improve the appearance of dark spots from sun damage.