What makes this product unique?
Resist C15 Super Booster is a concentrated blend of 15% stabilized vitamin C (l-ascorbic acid), antioxidant vitamin E, ferulic acid, and peptides. Resist Daily Smoothing Treatment with 5% AHA features an effective concentration of glycolic acid with a boost of pore-penetrating salicylic acid.
When used together, this power couple supercharges your anti-aging routine. They continually renew your skin's texture, even skin tone, smooth fine lines, and stimulate healthy collagen.
These products are 100% fragrance- and colorant-free.
Who is this product for?
Resist C15 Super Booster and Resist Daily Smoothing Treatment with 5% AHA can be used on all skin types and is ideal for anyone concerned with preventing and diminishing the signs of aging, including sun damage, fine lines, uneven skin tone, and wrinkles.
NOTE: Those allergic to aspirin (acetylsalicylate) should not use products containing salicylic acid (beta hydroxy acid).
SOURCES TO SUPPORT THE CLAIMS MADE FOR RESIST C15 SUPER BOOSTER
Biochemical and Biophysical Research Communications, January 2013, pages 579–584; Journal of Cosmetic Dermatology, December 2012, pages 310–317; Journal of Dermatological Science, June 2012, pages 216–220; Journal of Drugs in Dermatology, January 2012, pages 51–56; AAPS PharmSciTech, June 2011, pages 514–520; Expert Opinion on Drug Delivery, July 2011, pages 905–919; Archives of Pharmacal Research, May 2011, pages 811–820; American Journal of Clinical Dermatology, April 2011, pages 87–99; European Journal of Pharmaceutics and Biopharmaceutics, May 2009, pages 232–238; and Archives of Otolaryngology, October 1999, pages 1,091–1,098.
SOURCES TO SUPPORT THE CLAIMS MADE FOR RESIST DAILY SMOOTHING TREATMENT WITH 5% AHA
The New Ideal in Skin Health: Separating Fact From Fiction, Allured Books, Thornfeldt Carl MD, 2010, pages 180–181; Dermatologic Surgery, July 2009, pages 1,109–1,118; Clinical Evidence Online, December 16, 2008; Seminars in Cutaneous Medicine and Surgery, September 2008, pages 170–176; Journal of Dermatological Science, December 2005, pages 195–204; Plastic and Reconstructive Surgery, April 2005, pages 1156–1162; Cutis, August 2001, pages 135–142; Dermatologic Surgery, May 2001 pages 1–5; Journal of the European Academy of Dermatology and Venereology, July 2000, pages 280–284; American Journal of Clinical Dermatology, March-April 2000, pages 81–88; Dry Skin and Moisturizers: Chemistry and Function, edited by Marie Loden and Howard Maibach, 2000, page 237; Skin Pharmacology and Applied Skin Physiology, May-June 1999, pages 111–119; Journal of Cell Physiology, October 1999, pages 14–23; and British Journal of Dermatology, December 1996, pages 867–875.
tetrahydrobisdemethoxydiferuloylmethane, tetrahydrodemethoxydiferuloylmethane, antioxidant, glycerin, panthenol, glycolic acid, palmitoyl oligopeptide, tetrahydrodiferuloylmethane, Cucumis melo (melon) fruit extract, allantoin, salicylic acid, bisabolol, cell-communicating ingredients, acetyl octapeptide-3, ascorbic acid, AHA, tocopherol, caffeic acid, epigallocatechin gallate, ferulic acid, ceramide NS, vitamin E, sodium hyaluronate
Resist C15 Super Booster:
Water, Ascorbic Acid (vitamin C/antioxidant), Ethoxydiglycol (slip agent/penetration enhancer), PPG-26 Buteth-26 (emulsifier), PEG-40 Hydrogenated Castor Oil (thickener), Tocopherol (vitamin E/antioxidant), Ferulic Acid (antioxidant), Sodium Hyaluronate (skin-repairing ingredient), Acetyl Octapeptide-3 (cell-communicating ingredient), Glycerin (skin-repairing ingredient), Panthenol (skin conditioning agent), Sodium Metabisulfite (stabilizer/antioxidant), Triethanolamine (pH adjuster), Phenoxyethanol (preservative).
Resist Daily Smoothing Treatment with 5% AHA:
Water, Glycolic Acid (AHA exfoliant), Cetyl Alcohol (thickener), Butylene Glycol (slip agent and penetration enhancer), Palmitoyl Oligopeptide (cell-communicating ingredient), Ceramide 2 (skin-identical ingredient), Tetrahydrodiferuloylmethane, Tetrahydrodemethoxydiferuloylmethane, Tetrahydrobisdemethoxydiferuoylmethane (anti-irritants/antioxidants derived from curcumin), Epigallocatechin Gallate, Caffeic Acid (antioxidants), Salicylic Acid (BHA exfoliant/anti-irritant), Disodium Lauriminodipropionate Tocopheryl Phosphates (vitamin E-based antioxidant), PEG-10 Rapeseed Sterol (fatty acid thickener), Cucumis Melo (Melon) Fruit Extract (antioxidant), Bisabolol, Allantoin (anti-irritants), Dimethicone, Cyclopentasiloxane, Cyclohexasiloxane, Dimethiconol (silicone slip agents/texture enhancers), Tribehenin (texture enhancer), Polysorbate 20 (emulsifier), C12-15 Alkyl Benzoate, PPG-14 Butyl Ether, PEG-40 Stearate, Sorbitan Stearate (thickeners), PVM/MA Decadiene Crosspolymer, Polyacrylamide (film-forming agents), Disodium EDTA (stabilizer), C13-14 Isoparaffin (solvent), Laureth-7 (emulsifier), Sodium Hydroxide (pH adjuster), Caprylyl Glycol (preservative), Ethylhexylglycerin (skin-conditioning agent), Hexylene Glycol (solvent), Phenoxyethanol (preservative).
DIRECTIONS: Apply once or twice daily after cleansing and toning. Dispense 2–3 drops of the Resist C15 Super Booster with 1-2 pumps of Resist Daily Smoothing Treatment with 5% AHA, combine and smooth onto skin. Follow with moisturizer where needed.
If applied in the morning, it is essential that you protect your skin with a sunscreen rated SPF 25 or greater. Avoid direct contact with eyes.
Store Resist C15 Super Booster in a cool, dark place, below 25°C (75°F). Keep out of direct light.
Detailed instructions on how/when to apply your Paula's Choice products can be found in our How to Put Together Your Own Skincare Routine article.
This is my first time using an AHA exfoliant. Will the combination of these two potent products cause a negative reaction?
If you're new to using an AHA or BHA exfoliant, we suggest applying the exfoliant and C15 Super Booster separately; for example using one in the morning and the other at night. As with any skincare product, you should pay attention to how your skin responds and adjust usage (or products) accordingly.
Is Resist C15 Super Booster and Resist Daily Smoothing Treatment with 5% AHA duo recommended for use around the eyes?
Yes, but only up to the orbital bone area (the bony ridge that stops just before the immediate undereye area). Do not apply Resist Daily Smoothing Treatment to the eyelid or underbrow area.
My skin tends to be sensitive to vitamin C but I still want to use the Resist C15 Super Booster. Will applying it a few times per week still be beneficial?
Yes. Although once or twice-daily application is recommended, you will absolutely still see benefits from Resist C15 Super Booster if it’s applied less often. As with any skincare product, you should pay attention to how your skin responds and adjust usage (or products) accordingly.
I received my C15 and the internal air restrictor isn’t in the bottle—it’s on the dropper. How do I insert it?
The internal air restrictor, as you noticed, is now packaged separately to reduce the likelihood of the bottle leaking during transit. There are two ways to insert it into your C15, and both are easy!
Remove the seal from your C15, insert the dropper (do not remove the air restrictor from the glass stem) and screw the dropper cap closed. The cap will appear to tilt unevenly, but keep screwing it down and the internal air restrictor will snap into place. All done!
Remove the seal from your C15, and then pull the air restrictor off of the glass stem of the dropper. Push the pointed end of the air restrictor into the open C15 bottle, applying pressure until it snaps into place.
We also have a handy “How-to” video on our YouTube channel
that provides visuals on both of the above options. Once the air restrictor is secure, it will not come loose or fall out—and now your C15 is ready for use!
Can you tell me more about the Resist C15 packaging, i.e. "packaged to minimize light and air exposure"?
A great deal of thought went into the packaging for this product. Because Resist C15 is a water-light liquid, a bottle and dropper-tip applicator were the only way to go for measuring the perfect amount per use while ensuring the product wasn't messy to dispense. To protect the potency of the formula, we selected tinted glass to prevent UV exposure and an internal restrictor to drastically reduce airflow into the bottle when the dropper is removed. In rigorous testing, these packaging safeguards were more than adequate to preserve the effectiveness of the Resist C15 Super Booster. For maximum potency, we advise using C15 Super Booster within three months of opening.
I keep depressing the pump, but no product is coming out.
This product is packaged in an airless pump dispenser which utilizes a vacuum system to dispense and keep the contents fresh. Airless packaging helps to keep air and contaminates out of the product, which enhances the formula's stability and effectiveness.
When using your product for the first time, you may need to “prime” the dispenser. To prime, simply pump the dispenser slowly about 10-15 times. If the dispenser stops working at any time, simply repeat the "priming" step. Do not attempt to dismantle the package.