Tested on animals:No
Paula's Choice RESIST C15 Super Booster is a water based 15% ascorbic acid formula marketed for use in combination with your non-SPF moisturizers or serum. The good news is that it’s well suited to address a variety of skin concerns, and its water-like texture makes it suitable for any skin type.
Packaged in a dropper with an internal air-restrictor—a step above the average dropper container—this blends well into your go-to serum or non-SPF moisturizer. You can absolutely mix this into any product that isn't a sunscreen, actually, so feel free to experiment with mixing the C15 Super Booster into your favorite leave-on AHA or BHA exfoliant, your toner or other products.
At a 15% concentration, ascorbic acid can make a significant improvement in the appearance of an uneven skin tone and restore skin. (Skin Research & Technology, 2008 and Experimental Dermatology, 2003 and The Journal of Pathology, 2007).
Also included in the RESIST C15 Super Booster is sodium hyaluronate, which is the salt form of hyaluronic acid and optimal for use in topical skincare products. Hyaluronic acid helps hydrate skin, soothes and provides antioxidant defense (Journal of Clinical and Aesthetic Dermatology, 2012 & Journal of Drugs in Dermatology, 2012).
You'll also find the antioxidant ferulic acid, vitamin E and the peptide acetyl octapeptide-3—with such a mix of anti-agers, this is a well-rounded solution that is ideal for those who would like to "boost" the results of their skincare routine.
The RESIST C15 Super Booster earns our highest rating for its powerful, well-formulated combination of beneficial ingredients and because it is suitable for any skin type. We should note that Paula's Choice recommends this be used within three months, which is absolutely accurate. At such a high concentration of vitamin C, stability can become an issue if you keep it for longer than that period after opening.
- Light-as-water texture suitable for all skin types.
- Helps replenish and restore skin.
- Improves environmental defense of skin, and soothes sensitivity.
- Can improve the appearance of unevenness.