DEFENSE Antioxidant Pore Purifier
Based on 23 reviews
Clear pores of daily debris and pollution plus brighten skin with a blend of antioxidants, salicylic acid and other skin-fortifying ingredients.

DEFENSE Antioxidant Pore Purifier

Based on 23 reviews
Clear pores of daily debris and pollution plus brighten skin with a blend of antioxidants, salicylic acid and other skin-fortifying ingredients.
  • Helps protect skin from environmental damage
  • Salicylic acid clears and refines pores
  • Ultra-lightweight fluid texture
  • Apply once or twice daily after cleansing
Skin Types:
All Skin Types
    1 oz
    Travel Size...
Why is it different?
Take control of the daily damage airborne pollutants have on skin’s appearance with this innovative, super-light fluid. Provides multi-level defense for skin to keep it looking younger, longer.
What does it do?
Pore-refining salicylic acid and antioxidants neutralize airborne pollutants and blue light exposure for healthier, fortified skin. Azelaic acid and vitamin C help brighten, while skin’s natural defenses are reinforced with non-fragrant plant extracts and niacinamide.
How to use
Gently shake before use. Once or twice daily, apply over face and neck. Do not rinse. For daytime, always follow with a sunscreen. Note: Antioxidant Pore Purifier complements your favorite Paula’s Choice daily exfoliants.
Show details
DEFENSE Skin Care System - Our multi-layer defense system to combat around-the-clock environmental skin damage.

Mechanisms of Ageing and Development, June 2018, pages 123-130

Advances in Clinical and Experimental Medicine, March 2018, ePublication

Nutrients, November 2017, ePublication; and August 2017, ePublication

Journal of Dermatological Science, May 2017, pages 162-169

Indian Journal of Dermatology, Venereology, and Leprology, July-August 2015, pages 420-423

Food & Function, August 2017, pages 2, 650-2, 662

Clinical, Cosmetic, and Investigational Dermatology, August 2015, pages 451-455

Dermatology Research and Practice, February 2015, ePublication

Antioxidants, December 2013, pages 230-245

Journal of Cosmetic Dermatology, March 2012, pages 37-41

Product Ingredients Water, Propanediol (solvent/hydration), Butylene Glycol (texture enhancer/hydration), Ethoxydiglycol (solvent), Glycerin (skin-replenishing), Ascorbyl Glucoside (vitamin C/antioxidant), Panthenol (hydration), Salicylic Acid (exfoliant), Camellia Sinensis (White Tea) Leaf Extract (antioxidant), Glycyrrhiza Glabra (Licorice) Root Extract (skin-soothing), Potassium Azeloyl Diglycinate (skin-brightening), Coffea Arabica (Coffee) Fruit Extract (antioxidant), Ceramide NP (skin-replenishing/restoring), Vitis Vinifera (Grape) Seed Extract, Panax Ginseng Root Extract (antioxidants), Niacinamide (skin-restoring), Phytic Acid, Epigallocatechin Gallate (antioxidants), Adenosine (skin-restoring), Ubiquinone (coenzyme Q10/antioxidant), Calendula Officinalis (English Marigold) Extract, Lonicera Caprifolium (Honeysuckle) Flower Extract (skin-soothing agents), Sodium Hyaluronate (skin-replenishing), Lecithin (skin-restoring), Centella Asiatica Extract (antioxidant/skin-soothing), Sucrose Stearate (emulsifier), Glycine Soja (Soybean) Seed Extract (antioxidant), Hydrogenated Lecithin (skin-restoring), Carbomer (texture enhancer), Tetrasodium Glutamate Diacetate (chelating agent), Caprylic/Capric Triglyceride (skin-replenishing), Caprylyl Glycol (emollient), Polysorbate 20, Polyglyceryl-10 Stearate (emulsifiers), Hydroxyethylcellulose (texture enhancer), Sodium Hydroxide (pH adjuster), Ethylhexylglycerin, Phenoxyethanol (preservatives).

Ratings & Reviews

Love Love This!


Ok so I saw Paula's you tube video of this product after I bought it and panicked. I'm about to be 40 so I felt I may be outside of the target demographic. However with a 1 percent retinoid at night I don't really need much during the day except protection. I'm short I adore this product it's fantastic. If you were to call it a clinical dermatologist brand and slap a 100 dollar price tag on it people would buy it. It is gorgeous before applying retinoids or in the morning before sunscreen. Oily people buy this and the peptide booster and have people shocked when they see your drivers license.


Atlanta, GA


So glad I found a BHA that I can use!


I used to use the 4% BHA foam. After they discontinued it, I tried others, but my skin is so ultra sensitive. I really wanted to be able to use the 2% BHA liquid, but something in it just doesn't agree with my skin. I gave this one a shot since I was pretty much out of options. And I'm so glad I did! I use a couple drops daily directly after cleansing. Simply amazing! It smooths in nicely, and isn't heavy or sticky. My pores have never looked so good!! And no burning, itching, hives, bumps, rash or whiteheads. PLEASE don't stop making this one!


Naples, FL


Stunning product


I typically only like serums in theory because they are thick and / or sticky, which causes me to break out, outweighing any benefits they may have. However, this serum is smooth, easy to spread, feels good, exfoliates nicely, no breakouts, no irritation. I think it is very well formulated, not just in theory, but also in execution. 2-3x a week at night is fine for my combo skin.




Great daytime serum


This serum is light weight almost water-like. It Instantly absorbs into the skin. It isn't greasy at all. And that is why it's perfect for the daytime. It gives you all the antioxidant protection you need without weighing your skin down. For the night I prefer using something more hydrating for my dry skin.

Arjawan Patroness

Montreal, Canada


Brighter and more clear skin


I struggle with combination skin in the cold months and an oil slick in the summer, with the cooler months presenting the greater challenge. Because I'm unable to use the BHA twice a day in the winter and develop clogged pores in my drier cheek area, I wanted something extra to help clear all the congestion. This works so well with a combination of nightly BHA and azelaic acid. My clogged pores have improved 90% within a month of use and looks better every day. I'm impressed.




Hydrating & Brightening Serum!!!


This is a beautiful, lightweight serum. My skin looks awake and feels nourished after application. I love using this 2x a day; it also amplifies the effects of my moisturizer.


New York


The best serum yet!


This serum is a must if you have clogged pores and either combo or oily skin. It literally improved my skin overnight and I would NEVER have expected that. I was previoulsy using the whole Resist oily skin line. Its a wonderful line but I was still battling with clogged pores (sigh, peri-menopause its like being a teenager again). Isabel from PC recommended this serum along with the Defense cleanser and already my pores look so much better AND my skin care routine is simpler because this serum packs so much into it. Love, love, love this stuff. Here is my pared back routine: 1. Defense Cleanser am, pm 2. Resist Weightless Toner am, pm 3. Resist Pore Refining Treatment 2% am, pm 4. Defense Pore Purifier am, pm 5. Am Youth Extending Daily Hydrating Fluid Spf 50 5. Pm Resist Anti-Aging Clear Skin Hydrator




Loving this whole new line


Super light but very powerful, sinks in quickly, great to put under moisturizer, foundation, very calming on the face. I have tried most of the things that PC has for dry/very sensitive skin, this whole line is somehow different, worked very well for me, my skin has never been better, no redness, no irritated skin, no dry patches.




Loving this texture


I'm huge into serums and I got this as a sample size. I use it during the day applied before moisturizer and SPF sunscreen. The texture is light and almost doesn't even need another step due to its moisturizing properties. Definitely want to order the full sized version.


Calgary, Canada


Glass Skin Goals


I've been using the DEFENSE night moisturizer for about a month, and liked it so much I wanted to get the serum to try it. Wow. I've used the serum with and without the night moisturizer now for about a week, and I'm super impressed. It makes my skin really smooth and even toned--very "reflective" and glassy. It also helps clear up congestion, which is awesome, because I cannot use the 2% BHA (my skin is just really sensitive to it, so if I use it less frequently I still have problems with congestion). I've seen some complaints about the .5% salicylic acid, but that's supposed to be the lowest effective concentration, and combined with the azelaic acid derivative, it seems to offer a good amount of exfoliation, brightening, and smoothing for daily use. This is the ideal product for me, and I can imagine it will be a life-saver when traveling since it's an all in one serum. I will use this as my daily evening serum, and add the stronger 10% Advanced Smoothing Treatment once or twice per week. Thanks for making great products, Paula!


Savannah, GA



4.7 23