RESIST BHA 9 Treatment
Based on 955 reviews
This unique, concentrated leave-on BHA exfoliant works wonders to improve the appearance of stubborn skin concerns such as enlarged or clogged pores, bumps, and patches of rough, dry skin. It’s suitable even for skin prone to milia.

RESIST BHA 9 Treatment

Based on 955 reviews
This unique, concentrated leave-on BHA exfoliant works wonders to improve the appearance of stubborn skin concerns such as enlarged or clogged pores, bumps, and patches of rough, dry skin. It’s suitable even for skin prone to milia.
  • Delivers controlled, sustained release of salicylic acid
  • Minimizes the appearance of enlarged pores
  • Diminishes the appearance of hard, white bumps
  • Use as the last step in your evening skincare routine
Skin Types:
All Skin Types
Large Pores, Anti-Aging, Bumpy Skin


    0.3 oz
    Travel Size...
Why is it different?
RESIST BHA 9 for Stubborn Imperfections is an absolutely unique one-of-a-kind targeted formula for stubborn imperfections. It is your go-to solution when nothing else has worked. Impressive results are often visible after only one use. This exfoliant has an optimal pH of 3.2–3.6.
What does it do?
Delivers 9% BHA in a controlled-release formula for maximum skin smoothing with noticeable results. This serum visibly and quickly minimizes stubborn bumps, redness, enlarged pores and clarifies skin’s surface. Soothing plant extracts allow the formula to work without causing dryness.
How to use
At night, apply as a leave-on spot treatment for stubborn imperfections. Dispense a very small amount of RESIST BHA 9 onto a clean fingertip, and massage a thin layer over affected areas. Suitable for use around the eyes, but avoid contact with eyelids and do not apply along the lower lashline. Experiment to see which method works best for your skin concerns. May be applied over larger areas if needed. Reduce frequency of usage if irritation or flaking occurs.

Show details
Research Journal of European Academy of Dermatology and Venerology, September 2016, issue 9, pages 1480-1490

Indian Journal of Dermatology, Venereology, March-April 2012, issue 2, pages 142-5

International Journal of Cosmetic Science, February 2000, issue 1, pages 21-52

Journal of Clinical, Cosmetic and Investigational Dermatology, 2015, volume 8, pages 455-461

Marine Drugs, 2004, issue 2, pages 73-82

Product Ingredients

Propylene Glycol (hydration), PEG-75 (texture-enhancing), PEG-8 (texture-enhancing), Water, Salicylic Acid (beta hydroxy acid/exfoliant), Glycerin (hydration/skin replenishing), Avena Sativa Kernel Extract (oat extract/skin-soothing), Butylene Glycol (hydration), Boerhavia Diffusa Root Extract (antioxidant), Sea Whip Extract (skin-soothing), Arginine (hydration/skin replenishing), Polysorbate 20 (texture-enhancing), Disodium EDTA (stabilizer).

Ratings & Reviews

Must have!


I use bha9 occasionally for spot-treatment of cysts and pimples and am now trying it on sebaceous hyperplasia on my forehead with good results. What is most amazing is that I have to buy a new tube frequently because I give mine to friends and family with milia, cystic acne and discoloration. They all rave about it! I'm an evangelist for this product and I wouldn't be without it. Great to see that travel sizes are available, much better than giving my whole tube away!


Ann Arbor, mi


Love this product


I use this once every week or so and I love what it does for my skin. When used weekly in conjunction with Resist 4% BHA daily it gives amazing results. The only thing I would suggest if it hasn't been done already is changing the packaging and including a little more product. The 4%BHA packaging is perfect and I'd like to see the 9% in something similar. The pump doesn't give enough control in dispensing and it leaks. This product is too expensive to leak. The product has a sticky feel on the skin but that's ok because it's not for daily use and I sleep while it's on my face so no problem. ;)






This stuff is amazing and the only thing I have found that gives you a dramatic difference to your pore overnight! I've used every BHA out there, from expensive to drug store. This is liquid gold. It may sting slightly, but that let's me know it's working. That will go away. It feels pretty gross, no lies - but totally worth it. Feels slimy and oily but get past that. This is truly amazing 😉


New York, NY


Fantastic for sebaceous hyperplasia when combined w/Acnomel


BHA 9 works great by itself. I used it that way for a long time. It flattens sebaceous hyperplasia and makes less conspicuous. Almost nothing else does that consistently. But when I combined putting a layer of Acnomel (adult acne medication, fleshcolored) on my face at night followed by spotting Paula's Choice BHA 9 over the sebaceous hyperplasia places, the improvement was instant. The sebaceous hyperplasia spots seemed to dry out and disappear. I love this combination and use it every night--a gentle treatment! Wish I'd found it years ago but happy to have discovered it now!! A miracle!!! (Acnomel can be purchased online Walgreens, CVS, etc.)

Beauty Conscious





I love this product. I've been using it for about 2 months now and have noticed such a difference in the size of my pores. I apply it over my entire face as the last step in my nighttime routine. When I wake up my face feels so soft. I'm so happy that a friend of mine introduced me to PC. These products are truly changing my skin.


Alberta, CA


This stuff is literally amazing


I've had it for awhile but never really used it because I didn't notice much improvement over the PC BHA liquids already in my routine. Lately I've been struggling with blackheads around my nose area though which have become SUPER obvious since I started using the magnifying side of my mirror...blessing and a curse those darn magnifying mirrors. Truth is though, even if the blackheads aren't super obvious in the regular mirror (hidden under foundation and powder mostly) they still do leave my skin with texture I don't want. So, I thought I would try this for a change. I do use Retin A but my skin is so reactive I can't use it around my nose at all. I put a tiny bit on my nose and checked the magnifying mirror in the morning. Yep, this stuff works. My nose pores looked reduced, more tight and less dark. After one use. Now, those who have been using PC for awhile know this is possible but if you haven't, trust me, this brand of skincare works. I just wish the prices would stop rising so high though the 25% off three items is a pretty good deal! Ty PC!


BC Canada




Today is day 4 and I notice a change in my sebaceous hyperplasia, they are flatter and less noticeable. Woo hoo!!!!!! I have milia underneath my eyes and I haven't noticed a change in them yet, but I'm patiently waiting. I don't have any problems with the packaging. I simply press into my left hand one full pump and then apply it all over.


Lighthouse Point, FL


So glad I bought this!


I was hesitant to buy BHA 9 treatment but finally, based on someone's review, decided to get it. I have sensitive skin and had to stop using the 2% BHA liquid exfoliant because it irritated my skin if I used it regularly. I get occasional bad breakouts and it takes a long time for the redness to go away. I was intrigued by the BHA 9 treatment, but thought it would irritate me. I finally got some and it has done wonders for clearing up the breakouts and redness. I have used it almost daily for the past 10 days, just in certain spots, and so far no irritation. Miraculously, my spots have cleared so much faster than usual. Really glad with this purchase






I bought the full size, plus 2 of the sample size (great for travel and they can be refilled!) and doled them out to family members. My problem that I have never been able to 'fix' was that of sebaceous hyperplasia. I get a laser treatment every few years but it is expensive and can only be done in the winter months. Right now, with my night sweats--thank you menopause--they develop at a much faster rate and I was trying to find a product that could help me out in the interim. This is it! It doesn't remove them but the serum definitely flattens them down so they aren't nearly as noticeable. I'm 57-years old and love it! My son, at age 19 developed cystic acne. These breakouts are large, painful and can leave scarring. Reluctantly, he tried the BHA 9 for two weeks. Bingo! His face is not completely clear of acne, but the cystic acne is gone. No more mountains on his face. Lastly, my mom who is 85-years old had gone to dermatologists for the past two years trying to get rid of tiny bumps all over her face without success. The bumps are not acne, I think it is called milia. After ONE treatment almost all of the bumps disappeared. They have not completely gone--the ones around her nose are still visible--but the difference is amazing and considering all the money she spent at dermatologists which gave her zero results, this has been a silver bullet. My only criticism of the product is what others have said; the pump is horrible unless you want to use a good amount of product. You cannot control the blob that comes out when you push the pump and that is annoying when you are trying to use sparingly. Other than that, this is a great product and so for anyone struggling with one of the issues I mentioned, I felt obligated to share our results. Use at night as recommended because it is tacky to the touch and therefore not good to use with makeup.

Less is More

Seatle, WA


Amazing, best product


Amazing. Lightweight, absorbs well so layers well, obliterates pores, acne & milia... unbelievably effective! Expensive but you use so little that it's worth it. Do not like the 2%BHA liquid at all. It's heavy, sticky & irritates my skin. Get this instead!




RESIST BHA 9 Treatment

3.9 955