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.

Court

Atlanta, GA

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!

Janine

Naples, FL

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.

Li

SLC

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

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.

Sophie

Knoxville

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.

Kayla

New York

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

BeautyAZ

Arizona

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.

Diana

NY

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.

Lien

Calgary, Canada

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!

Sarah

Savannah, GA