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Resist C15 Super Booster + Resist BHA 9

This over-achieving power couple dissolves blackheads, shrinks enlarged pores, and makes quick work of stubborn imperfections.
Item #: 488
  • Anti-Aging
  • For All Skin Types
  • Duo Includes: Resist C15 and Resist BHA 9

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Resist C15 Super Booster + Resist BHA 9

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Customer Ratings:

85 out of 100
(Based on 7 Reviews)
Page of 1
  1. L N
    Reviewed on Saturday, October 04, 2014
    100 out of 100
    • Rating
      Best / 4
    Transformed my skin
    • I have been using this duo along with the Skin Perfecting 2% and it has changed the way my skin looks and feels. My skin is less bumpy, clearer and my breakouts are under control. The BHA 9 has helped the stubborn pimples under my skin go away. The C15 Super Booster has helped fade my acne scars. This was done without irritating or making my skin flaky in any way. I can't wait to try more Paula's Choice products.

  2. John
    Reviewed on Wednesday, September 24, 2014
    40 out of 100
    • Rating
      Poor / 4
    • I was using the BHA9 in attempts to get rid of sebaceous hyperplasia. I tried to stick with it, but unfortunately it didn't seem to do anything and even seemed to make one of them worse. I was really hoping for a solution, and I'm really saddened to say that this product did not do anything for my sh. It does seem to peel very well though, so it may help for other stubborn spots. BHA9 1/5. The C15 Super Booster is what makes this review a 2/5 instead of a 1/5 and PC's general quality.

  3. Dianne E.
    Reviewed on Sunday, August 24, 2014
    100 out of 100
    • Rating
      Best / 4
    Great Duo
    • These two products are amazing! The BHA 9 is the only product I've ever used that has made the large pores on my nose all but disappear. I was actually shocked! I had some red spots that would not go away on my hand, and the C15 made those disappear! I have tried many products and these two really stand above all the rest!

  4. courtney
    Reviewed on Sunday, August 10, 2014
    100 out of 100
    • Rating
      Best / 4
    Restoring my sanity
    • As a 29 year old woman with hormonal acne this product as been a lifesaver. It does not stop me from breaking out, nothing will. But, this duo speeds healing time and fades the red marks on my fair skin. I use this with the 8% AHA gel and a prescription retinol. I have sensitive combination skin and I've never had any irritation, but I only use it along my jaw line, where I breakout. I'd certainly recommend trying a sample or two before making the investment, but for me it's well worth it!!

  5. Wendy L.
    Reviewed on Wednesday, April 02, 2014
    60 out of 100
    • Rating
      Neutral / 4
    Nothing fancy
    • I bought this as a set about three weeks ago and haven't noticed any reduction in my acne. The Resist BHA 9 claims to reduce breakouts but they look the same in the morning as they did in the evening (just less red). I use the CLEAR regular strength trial kit, then apply 2 drops of the RESIST C15 and mix it with a collagen serum, then apply the Resist BHA 9 as a spot treatment for those stubborn moderate acne around my cheeks that won't go away. Here's to hoping few more weeks will do the trick.

  6. Kay A.
    Reviewed on Tuesday, March 18, 2014
    100 out of 100
    • Rating
      Best / 4
    Resist C15 Super Booster/Resist BHA 9
    • You've got to try Resist BHA 9. No matter what I've done & all the products I've tried, I had white heads on my nose and a big difference in the size of my pores, as well as around my bottom lip. It doesn't dry out my skin but even I was shocked at the improvement. The resist Booster is great for healing my skin, moisturizing, evening out the color. I use it after the serum. I'm 55 & I don't look like it & I'm happy! Don't need or have plastic surgery or botox. I won't use any other products.

  7. KELLY Z.
    Reviewed on Monday, January 20, 2014
    100 out of 100
    • Rating
      Best / 4
    Unreal Combo
    • When I was a teen, for school we had to do a portrait of a friend. My friend drew me, and although it was in jest, she drew me, black dots on my nose and chin and all. It stuck with me, clearly. Blackheads have plagued me my entire life, even now, 19 years later. I've done pore strips, facials, masks, bought removers and gotten mini vacuums to suck them out. It wasn't until I got this combo that I saw results. Smoother nose, smaller pores and best of all: a better feeling just 14 days in.

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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 BHA 9 is a first-of-its-kind spot treatment specially formulated to address your most stubborn skin imperfections. When used together, this power couple supercharges your anti-acne/anti-aging routine.

These products are 100% fragrance- and colorant-free.

BHA 9 can do all of the following:

  1. Unclog pores with the first use
  2. Diminish white bumps
  3. Minimize enlarged pores
  4. Refine and smooth skin's texture
  5. Minimize sebaceous hyperplasia
  6. Smooth and soften dry, rough patches
  7. Help balance oily skin
  8. Fade red marks from breakouts
  9. Reduce breakouts

Who is this product for?
Resist C15 Super Booster and Resist BHA 9 are targeted treatments for all skin types, especially those prone to blemishes or stubborn skin imperfections. You'll see dramatically younger, healthier, and more radiant skin in weeks!


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.


Dermatology, Second Edition, McGraw Hill, Baumann, Leslie, MD, 2009, pages 150–151; Dermatologic Surgery, April 2009, pages 638–644; Indian Journal of Dermatology, Venereology, and Leprology, March-April 2005, pages 87–90; Pharmazie, March 2005, pages 215–220; Journal of Cosmetic Science, November 2004, pages 519–531; and Drugs Under Experimental and Clinical Research, Volume 3, 2003, pages 101–105.

Key Ingredients: tocopherol, sea whip extract, sodium hyaluronate, Avena sativa, ascorbic acid, Boerhavia diffusa root extract, glycerin, ferulic acid, salicylic acid, acetyl octapeptide-3, panthenol, arginine

Product Ingredients:

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 BHA 9:
Propylene Glycol (solvent/penetration enhancer), PEG-75, PEG-8 (thickeners), Water, Salicylic Acid (beta hydroxy acid/time-released exfoliant, 9%), Glycerin (skin-repairing ingredient), Avena Sativa (Oat) Kernel Extract (anti-irritant), Butylene Glycol (slip agent), Boerhavia Diffusa Root Extract (antioxidant plant extract), Sea Whip Extract (soothing plant extract), Arginine (amino acid/skin-conditioning agent), Polysorbate 20 (stabilizer), Disodium EDTA (chelating agent).

DIRECTIONS: Apply at night after cleansing, toning, and exfoliating. Dispense 2–3 drops of the Resist C15 Super Booster with a small amount of Resist BHA 9, combine and smooth onto skin. Follow with moisturizer where needed. Suitable for use around the eyes, but avoid contact with eyelids and do not apply along the lower lashline.

Store Resist C15 Super Booster in a cool, dark place, below 25°C (75°F). Keep out of direct light.

This product contains 9% salicylic acid. Please note:

  • Do not use if you are allergic to aspirin
  • If you experience irritation, rinse from skin and discontinue use
  • Avoid direct contact with eyes
  • Protect skin with sunscreen daily
  • Ask your doctor before using on children
  • Keep out of reach of children
  • If pregnant or breastfeeding, ask your doctor before use

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.

Is the Resist C15 Super Booster & Resist BHA 9 duo just a spot treatment or can I use them all over my face?

Resist C15 may be applied all over the face as needed. A thin layer of BHA 9 may be applied all over your face if needed, but you would want to use it first over smaller areas where stubborn imperfections (for example, blackheads that have not responded to a BHA exfoliant with 2% salicylic acid) are an issue to see how your skin responds.

Is the Resist C15 Super Booster and Resist BHA 9 duo suitable for rosacea-affected skin?

The Resist C15 Super Booster may be suitable for rosacea. 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.

The Resist BHA 9 is suitable for rosacea, but to start, apply this treatment to stubborn imperfections only, once daily or a few times per week in the evening. Pay close attention to how your skin responds. If signs of flaking or dryness occur, do not continue to apply BHA 9 to these areas or reduce frequency of application.

How often can I use BHA 9?

We recommend applying BHA 9 once a day, preferably in the evening, after cleansing and toning. Many will find that their imperfections respond favorably with less frequent usage, such as 2-3 times per week. For best results, experiment to determine the frequency of application that works best for you

What is the strength of BHA 9?

BHA 9 contains 9% salicylic acid in a unique formula, time-released to prevent irritation without sacrificing the result of its 9% strength. This allows even those with sensitive skin (perhaps even those who cannot tolerate our 2% BHA formulas) to reap the incredible results possible with BHA 9.

My skin tends to be sensitive to vitamin C but I still want to use the C15 Super Booster. Will applying this product 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 skincare product, you need to 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!

Option #1: 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!

Option #2: 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.

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