RESIST C15 Super Booster

Brown spots don't stand a chance. Add a few drops of this booster to your serum or moisturizer daily. It's the new anti-aging superhero.
Item #: 777
  • Anti-Aging, Brown Spots, Wrinkles
  • For All Skin Types
  • Firms, brightens, and smooths skin

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RESIST C15 Super Booster

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Customer Ratings:

87 out of 100
(Based on 279 Reviews)
Page of 12 Next »
  1. Stacy
    Reviewed on Thursday, April 24, 2014
    40 out of 100
    • Rating
      Poor / 4
    Won't buy again
    • I've been using C15 faithfully for 2 months on my face and back of hands and honestly haven't noticed one bit of difference in my 50-year-old moderately wrinkled and sun-damaged skin. I already use PC cleanser, toner, serum and SPF moisturizer, so maybe this is as good as it gets. Anyway, I gave it 2 stars because I'm a fan of PC products in general and assume there's good stuff in it. But I can't see buying more of an expensive product that shows no visible benefit.

    Customer Service Response
    Replied on: Thursday, April 24, 2014

    Thanks for your review! Although it's unusual to not see any positive change from the use of a product like this, never say never! Feel free to contact us for a refund or exchange; we're happy to recommend a product that may be better suited for your needs.
     

    —Admin
  2. Angela A.
    Reviewed on Wednesday, April 23, 2014
    60 out of 100
    • Rating
      Neutral / 4
    Works...but I can't get past the smell
    • I am normally a HUGE fan of Paula's Choice. It works as well, if not better, than the expensive alternative. I can say I saw a large improvement in my skin. I am still young (33), but I am not ready for botox yet, so I do my best to take care of my skin. It worked wonders, I could see that my skin was brighter and firmer...however, the smell is horrible. Since I have a nose like an elephant, I had to stop using it.

  3. DIANE
    Reviewed on Monday, April 21, 2014
    60 out of 100
    • Rating
      Neutral / 4
    Just OK
    • First of all my skin is very used to vitamin c . I was hoping this would give me an extra boost but it really did nothing for my skin.

    Customer Service Response
    Replied on: Monday, April 21, 2014


     

    —Admin
  4. Margaret C.
    Reviewed on Saturday, April 19, 2014
    100 out of 100
    • Rating
      Best / 4
    Game Changer
    • This is an amazing product - a real Game Changer. It makes a difference in just one application. Paula's Choice has hit a home run with this one. Don't hesitate to buy. When I first tried it - the next day I thought my tinted moisturizer looks really good today. It was actually my skin that looked really good. Just wonderful. Please Paula, don't stop making this one.

  5. MARY K.
    Reviewed on Wednesday, April 16, 2014
    100 out of 100
    • Rating
      Best / 4
    Smooth Glowing Skin
    • I use this every day in the morning. I mix this with the PC Retinol. My skin was very, very, very oily, with large clogged/congested pores. I use one pump my face. My skin is at its best; better than I have had it in years. My acne is diminished and I have smooth, ultra smooth skin. It is price but you only need two drops. TWO drops! I have no adverse reactions. This product gives a me a smooth, glowing complexion. I love this product and would highly recommend this to anyone.

  6. JENNIFER M.
    Reviewed on Tuesday, April 15, 2014
    60 out of 100
    • Rating
      Neutral / 4
    Pleasant but didn't work for me.
    • I bought this as soon as I read about it. I couldn't wait to try it. I have sun spots on my cheeks/face from laying out in my teens/20's. I'm in my mid 30's now and trying to reverse damage caused by the sun. I really, really wanted this to work. I am down to an 8th of the bottle and have used it religiously. It feels fantastic, glides really well, however, it has done nothing for the sun spots on my face. I wouldn't discourage others from trying it out, but it didn't work for me.

    Customer Service Response
    Replied on: Wednesday, April 16, 2014

    We're sorry this product didn't work for your brown spots; that's not the typical response, but at least you're getting a wonderfol dose of antioxidants to stimulate collagen production and fight free-radical damage. You did not mention if you've been good about protecting your skin every day, rain or shine, with a product rated SPF 25 or greater. Daily sun protection is vitally important to the success of any skin-lightening product. Feel free to contact us to discuss which SPF product is best for you, plus explore our other skin-lightening products!

    —Admin
  7. goku eneregi
    Reviewed on Tuesday, April 15, 2014
    100 out of 100
    • Rating
      Best / 4
    Give it some time...and bayum!
    • Hehe, the color of bottle reminds me of Dragonball clothes. Like retinol, I could not tolerate the high strength vitamin c at first. Although I had mild drying and tiny breakouts, I did see that my skin had really brightened up. What do you do if benefits outweigh the side effects? Yeah, titrate up! I applied 2 drops of serum 1-2x/wk AM and PM, then gradually increased (over 1 month) to AM and PM daily. Now I don't have drying or breakouts. I'll be purchasing another bottle ;)

  8. Dawn H.
    Reviewed on Monday, April 14, 2014
    100 out of 100
    • Rating
      Best / 4
    One that visibly works
    • I have been a customer for a little while and during this time I have tried a variety of Paula's products to find that just right combination for my skin. I am 43 and a former smoker and sun worshipper so lines have begun to etch themselves into my face much to my dismay. I tried a trial size of Resist C15 and WOW....it visibly has made a difference. I mix a few drops each morning and night with other Paula skin products and it really brightens my skin and gives me a much younger appearance. WOW

  9. Fay B
    Reviewed on Monday, April 14, 2014
    100 out of 100
    • Rating
      Best / 4
    Give it a bit of time!
    • I used this product, initially expecting to wake up the next morning with glowing radiant skin - and I didn't (no surprise there - it's not magic..but it's pretty darn close. I stucl with the product for a couple of weeks, that's when the magic happened. For me, I noticed a huge difference with my acne and the left-over red marks from past breakouts. They disappeared beautifully and new pimples are cleared in a few days - no more lingering blotches! Thank you PC!

  10. Narin A.
    Reviewed on Sunday, April 13, 2014
    100 out of 100
    • Rating
      Best / 4
    perfect skincare product!
    • I have tried the SkinCeuticals CE Ferulic and I was extremely disappointed in how quick it oxidised and something in the solution broke me out. Anyone who uses that product and likes the results, this product is the perfect dupe for it at a much better price AND the effect is amazing. Right after applying it, my skin is glowing. My skin concern is acne scars and I pair this with the 2% BHA Bark Spot Eraser to treat my skin. My skin has already improved in one week. I am very impressed!

  11. Mary
    Reviewed on Saturday, April 12, 2014
    20 out of 100
    • Rating
      Worst / 4
    Irritating to my skin
    • This product irritated my skin. It became red and irritated with lots of sore little bumps. This was the only change in my routine. I then tried different things like eliminating other products and changing other parts of my skincare, but each time I used the serum it caused the same bad reaction so obviously my skin can't tolerate it in any way. I did receive a credit which I appreciate.

  12. Wahoonito Z.
    Reviewed on Saturday, April 12, 2014
    100 out of 100
    • Rating
      Best / 4
    Great product
    • My mom loved it so much I gave mien to her and ordered her a separate one. This is the 3rd bottle that I have ordered. The only complain/con is that although it is light weighted, it is quite tacky. Not extremely greasy. Love the performance any way.

  13. Shamma D.
    Reviewed on Saturday, April 12, 2014
    100 out of 100
    • Rating
      Best / 4
    People ask about my glow
    • My coworker came in and she did a double take and said why do you look brighter? I said PC a new product. The lady @Estée Lauder counter and the lady said what do you use to give you such a glow, your skin looks great. I just keep getting compliments about my skin and glow. Thanks for making such excellent products. This is all I rave about because they work. I wish I had known about PC products before now that is my only regret. I love the c15 with my serum, my skin thanks you.

  14. Amanda B
    Reviewed on Friday, April 11, 2014
    20 out of 100
    • Rating
      Worst / 4
    Did it do anything? Hard to say
    • I write this review with a few uses left in the bottle and don't have much of anything positive to say. I find myself asking if I'm too young to see a difference in my skin (31), or if I didn't have brightness or many firming issues to begin with. I have seen noticeable anti-aging results using other items in the RESIST line, but I still find myself looking in the mirror with hope that something will change. Sad, I'm left disappointed.

    Customer Service Response
    Replied on: Friday, April 11, 2014

    Hi Amanda! Thank you for sharing your experience, and we're sorry the C15 didn't work out for you. It's a challenge to know why your results didn't match with other customers, but we would recommend contacting our Customer Care Team for assistance with a refund or exchange, as well as tips on why the C15 work out for you.

    —Admin
  15. Brooke in Brooklyn
    Reviewed on Tuesday, April 08, 2014
    80 out of 100
    • Rating
      Good / 4
    SO IMPRESSED!!
    • I'm thrilled with both this jar & customer service. I had a mishap when I opened my box after it arrived. I dropped my jar right away & it broke-I lost all of the liquid. I had saved up to be able to put in this order to paulaschoice & I was very sad that I had made such a foolish mistake. I emailed customer service, explained what I had done. My hopes weren't high. But they helped me out w.a new bottle! I was shocked in the best way. GREAT liquid! My skin looks amazing compared to before.

  16. Eve G.
    Reviewed on Tuesday, April 08, 2014
    40 out of 100
    • Rating
      Poor / 4
    Sensitive skin-haver here...
    • I don't want to rain on the parade, but as a sensitive skin-haver, I can't vouch for the product in my case. I've been using this 1 mo., and I haven't noticed any benefits in my skin yet. I would otherwise be more patient had the product not irritated my skin the way it has...Nothing insane, but the redness and stinging I experience after using it doesn't make it seem worth continuing. The packaging is well-designed, the price is reasonable...It just didn't work for my skin

  17. Meri G.
    Reviewed on Monday, April 07, 2014
    100 out of 100
    • Rating
      Best / 4
    AMAZING Skin Brightener
    • I have been using this product for several months. I waited to write a review until I was sure it was really working for me. It has been so amazing. I have sensitive skin but also have issues with breakouts. I have not had ANY trouble with this product. I don't use it every day but use fairly frequently. I have used alone or mixed with the Resist Ultra Light Antioxidant Serum. Both ways worked great. I use at night and my skin is so radiant the next morning. Definitely recommend!

  18. Jill M
    Reviewed on Saturday, April 05, 2014
    100 out of 100
    • Rating
      Best / 4
    Magic!
    • This stuff is magic! Within a couple of days of use, my skin was significantly softer, smother and brighter. I'm 42, and over the past couple of years I've noticed that my skin's texture is ''rougher''. This new product, in addition to exfoliating, works wonder! Better than any pricy department store product I'veused.

  19. Melinda D.
    Reviewed on Saturday, March 29, 2014
    40 out of 100
    • Rating
      Poor / 4
    Too harsh for me
    • I received a sample and was excited because the reviews were so good. The first couple times I only dabbed it on the one sunspot on my cheek. The problem came when as instructed, I mixed three drops into my PC moisturizer and smoothed in all over my face (avoiding the eye area) before bed. I woke up with bright red blotches. It seems to be working for lots of people, but despite the fact that I have never had problems with vit c before, this is a no go for me.

    Customer Service Response
    Replied on: Monday, March 31, 2014

    Thank you for sharing your experience Melinda, and we're sorry to hear thatit wasn't a fit for you. It is true that not everyone can tolerate the potency of the C15 (15% vitamin C), but we would recommend contacting our Customer Care for assistance with a refund or exchange.

    —Admin
  20. lisa w.
    Reviewed on Thursday, March 27, 2014
    100 out of 100
    • Rating
      Best / 4
    Love love love
    • For some reason my skin really responds to vitamin c and this is the best I've ever used. Try it!

  21. LEANNE
    Reviewed on Wednesday, March 26, 2014
    40 out of 100
    • Rating
      Poor / 4
    Not a must have for me
    • I've used this for a few weeks, and does not seem to do anything... many paula's choice items i recommend to friends and rave about, this one is not a must have for me.

  22. marianne w.
    Reviewed on Wednesday, March 26, 2014
    100 out of 100
    • Rating
      Best / 4
    Amazing!
    • A-M-A-Z-I-N-G product!!! The c15 has renewed my faith in illuminating and nourishing skin care products! My skin has never felt so good!! My heartfelt thanks to Paula and her team!!

  23. Anonymous
    Reviewed on Sunday, March 23, 2014
    100 out of 100
    • Rating
      Best / 4
    love love love
    • I had been using the skin brightening treatment and then decided to try out the C15 serum. I cannot believe how quickly and effectively this faded my spots left over from breakouts! Simply amazing! They are almost all the way gone!

  24. Chrissy D.
    Reviewed on Sunday, March 23, 2014
    100 out of 100
    • Rating
      Best / 4
    It is like making a vitamin cocktail for your skincare!
    • I got this as a sample with my anti resist kit and it is super amazing! I used the kit for about a month in and then decided to test out the sample to see if it made a difference and oh boy..it just made it even better! I love the consistency of it when combined with any one of products used in the kit. I plan to purchase a larger bottle in the future. Thanks again Paula!

  25. LISA W.
    Reviewed on Thursday, March 20, 2014
    100 out of 100
    • Rating
      Best / 4
    Awesome Product and Company
    • Just want to say First Thank you for the fastest shipping in town ordered on a Wednesday and received on Thursday WOW and second this product is awesome I stole my moms and now back to ordering one guess I should replace my mothers Paula your products are awesome I cant wait to use the kit I just ordered for oily skin I am sure I will be a customer for life

Page of 12 Next »

What makes this product unique?
RESIST C15 Super Booster is a concentrated, light-as-water liquid treatment product designed to supercharge your Paula's Choice serum, or it may be used alone. A blend of 15% stabilized vitamin C (l-ascorbic acid) at a pH of 3.0, antioxidant vitamin E, ferulic acid, and peptides repairs visible signs of aging and stimulates collagen production for smoother, brighter, and firmer skin.

Vitamin C also helps protect skin from environmental damage as it evens your skin tone. You'll see dramatically younger, healthier, and more radiant skin in weeks!

Who is this product for?
RESIST C15 Super Booster is for anyone who wants to boost the results from their Paula's Choice serum or who wants to experience the benefits of vitamin C when combined with other proven anti-aging ingredients. The formula is suitable for all skin types and also appropriate for breakout-prone skin.

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.

Key Ingredients: ferulic acid, acetyl octapeptide-3, glycerin, panthenol, tocopherol, sodium hyaluronate, ascorbic acid

Product Ingredients:

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).

DIRECTIONS: Apply once or twice daily after cleansing, toning, and exfoliating. Dispense 2–3 drops and add to your favorite Paula's Choice serum, or use alone and follow with moisturizer where needed.

If desired, apply your serum first and follow with this treatment. If applied in the morning, it is essential that you protect your skin with a sunscreen rated SPF 15 or greater. May be applied around the undereye area and is fine to mix with other Paula's Choice products.

Detailed instructions on how/when to apply your Paula's Choice products can be found in our How to Put Together Your Own Skin-Care Routine article.

Can you tell me more about the RESIST C15 packaging, i.e. “packaged to minimize light and air exposure”?

Absolutely—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, tinted glass prevents UV exposure and an internal restrictor (when you pull the dropper out, airflow into the bottle is drastically reduced). 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.

How long will the trial size last?

The C15 Trial Size is 3.5ml, and should last you 20-25 days of usage.

Can I use RESIST C15 Super Booster with a retinol or prescription retinoid product?

Yes. RESIST C15 Super Booster beautifully complements the benefits from retinol, and research has shown it is fine to use these two ingredients together. In fact, retinol has been proven to be more effective when combined with vitamin C. Applied together, they are a formidable defense against free-radical damage that ages skin.

Can I use RESIST C15 Super Booster with an AHA or BHA exfoliant?

This should be fine for those who are already using such products. If you’re new to using an AHA or BHA exfoliant, we suggest separating application of the exfoliant and C15 Super Booster; for example using one in the morning and the other at night.

How does RESIST C15 Super Booster differ from your other antioxidant serums, including those that also contain vitamin C? Do I really need this product, too?

RESIST C15 Super Booster is a specialized treatment product designed to supercharge the benefits all of our serums provide. It was created for those who want to boost the efficacy of their anti-aging skin-care routine, as it works multiple ways to make skin look and act younger. If you're happy with the results from your serum alone, you probably don't need to add this; however, you may want to experiment with it, as you may be surprised by the additional improvements!

RESIST C15 Super Booster contains more than double the amount of vitamin C as our other serums, though all of our serums treat skin to a proven combination of anti-aging ingredients. The 15% concentration of stabilized vitamin C in RESIST C15 is an excellent amount to lighten stubborn brown spots, help fade red marks from acne, and significantly improve sun-damaged skin.

Is the effectiveness of RESIST C15 Super Booster reduced if I mix it with other products?

No. The formula was designed to complement the ingredients in our serums and moisturizers.

Is it OK to mix RESIST C15 Super Booster with my sunscreen?

No, you should never mix any skin care product with a sunscreen because it will dilute the sunscreen making it less effective. For best results, mix RESIST C15 Super Booster with your serum each morning (or apply alone) and follow with your daytime moisturizer with sunscreen. In any daytime skin-care routine, sunscreen should always be the last product applied.

Is RESIST C15 Super Booster suitable for breakout-prone skin?

Yes! Not only is the texture water-light, the vitamin C plus other antioxidants and repairing ingredients work to reduce the inflammation and redness from acne, as well as encourage healing of red marks from past breakouts.

Is RESIST C15 Super Booster suitable for rosacea-affected skin?

Maybe. The concern is the amount of vitamin C, which can be too potent for some cases of rosacea. We suggest sampling this product to see how your skin responds. Generally speaking, though, vitamin C's anti-inflammatory action on skin can be helpful for rosacea.

My skin tends to be sensitive to vitamin C but I still want to use this. Will applying it a few times per week still be beneficial?

Yes, of course. 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 skin-care product, you need to pay attention to how your skin responds and adjust usage (or products) accordingly.

Can RESIST C15 Super Booster be used as a skin-lightening product?

Research has shown that the amount of vitamin C the RESIST C15 Super Booster contains can significantly improve brown spots and other sun-induced discolorations. Ideally, you'd want to combine RESIST C15 Super Booster with one of our skin-lightening products with hydroquinone or niacinamide, but if your skin cannot tolerate those ingredients the vitamin C in Super Booster may be the solution!

You have several serums plus this booster product. Which one is best for me?

All of our serums contain a blend of anti-aging ingredients whose results are supported by published research, so which serum you choose comes down to skin type and personal preference, rather than one being better than the other.

It is also perfectly fine to use more than one serum; for example, you could apply RESIST Ultra-Light Super Antioxidant Concentrate in the morning mixed with RESIST C15 Super Booster, then at night apply RESIST Intensive Wrinkle-Repair Retinol Serum. RESIST C15 Super Booster works with any of our serums or, if preferred, you may apply this treatment as the serum step in your morning and evening skin-care routine.

What color should RESIST C15 be? My sample size has a pale yellow tint. Is that OK or should the product be clear?

C15 Super Booster should have a clear to a light yellowish tone. Although judging color can be somewhat subjective, the issue with destabilization of high amounts of vitamin C (ascorbic acid) comes into play once this vitamin begins to discolor significantly, i.e. turning a deep yellow/orange or deep brown shade. This is a sign the vitamin C has become less active which can occur over time, hence our recommendation to use this serum within three months of opening.

A minor color variation is normal for products that don't contain artificial colorants to maintain a consistent shade, so between batches there can be a subtle difference in shade due to the natural color of the raw materials used to make the product. This does not mean the product is ineffective or less effective than if it were colorless.

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