10% Niacinamide Booster
Based on 213 reviews


10% Niacinamide Booster

This concentrated 10% niacinamide serum booster dramatically improves uneven skin tone and refines the appearance of pore size, skin texture and fine lines.

New Collection but same great formula! Resist Anti-Aging Boosters are now Boost.

10% Niacinamide Booster

Based on 213 reviews


This concentrated 10% niacinamide serum booster dramatically improves uneven skin tone and refines the appearance of pore size, skin texture and fine lines.
  • Promotes a brighter, younger-looking appearance
  • Niacinamide (vitamin B3) visibly minimizes pore size
  • Sheer, ultra-light liquid formula
  • Use alone or add to your moisturizer or serum

New Collection but same great formula! Resist Anti-Aging Boosters are now Boost.

Skin Types:
All Skin Types, Oily Skin
Anti-Aging, Enlarged Pores

Add to cart options


Add to cart options

Product Actions


Additional Information

Why is it different?

10% Niacinamide Booster is the first concentrated 10% niacinamide formula blended with natural calming and superior hydrating ingredients to address the frustrating combination of enlarged pores plus visible signs of aging, such as: uneven skin tone, lack of radiance, rough surface skin texture, redness, and dryness. The results after only a few days will impress you.

What does it do?

Niacinamide is a form of vitamin B3, which research has proven can reduce the appearance of enlarged pores, uneven skin tone, wrinkles, and dry skin. The light-as-water texture is designed to dramatically enhance your skincare while also providing soothing agents to promote visibly calm skin. Antioxidants and skin-replenishing ingredients make this product a multi-tasking must-have solution for all skin types.

How to use

Dispense 2-3 drops into the palm of your hand and then apply to your face. Add a couple more drops if you will also be applying to your neck and chest. During the day, finish with a moisturizer with SPF 30 or greater. Can be applied under the eye area, avoiding the eye itself.

Show details

Recommended For You

Research Journal of Investigative Dermatology, May 2017, page S116

International Journal of Pharmaceutics, March 2017, pages 158-162; and January 2013, Pages 192-201

Facial Plastic Surgery Clinics of North America, May 2016 , pages 145-152

Phytotherapy Research, August 2015, pages 1117-22

Clinical, Cosmetic, and Investigational Dermatology, July 2015, pages 405-412

Journal of Drugs in Dermatology, September 2014, pages 1021-5

Skin Pharmacology and Physiology, June 2014, pages 311-315

Phytotherapy Research, February 2014, pages 159-66

Journal of Cosmetic Dermatology, June 2013, pages 96-102; and April 2004, pages 88-93

Indian Dermatology Online Journal, April-June 2013, pages 143-146

Journal of Cutaneous and Aesthetic Surgery, January-March 2013, pages 4-11

Dermato-Endocrinology, July 2012, pages 253-8

Journal of Cosmetic and Laser Therapy, January 2006, pages 96-101

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

Biofactors, 1999, volume 9, pages 371-8

Product Ingredients

Water (Aqua), Niacinamide (vitamin B3, skin-restoring ), Acetyl Glucosamine (skin replenishing/antioxidant), Ascorbyl Glucoside (vitamin C/antioxidant), Butylene Glycol (hydration), Phospholipids (skin replenishing), Sodium Hyaluronate (hydration/skin replenishing), Allantoin (skin-soothing), Boerhavia Diffusa Root Extract (skin-soothing), Glycerin (hydration/skin replenishing), Dipotassium Glycyrrhizate (skin-soothing), Glycyrrhiza Glabra Root Extract (licorice extract/skin-soothing), Ubiquinone (antioxidant), Epigallocatechin Gallate (antioxidant), Beta-Glucan (skin-soothing/antioxidant), Panthenol (skin replenishing), Carnosine (antioxidant), Genistein (antioxidant), Citric Acid (pH balancing), Sodium Citrate (pH balancing), Sodium Hydroxide (pH balancing), Xanthan Gum (texture-enhancing), Disodium EDTA (stabilizer), Ethylhexylglycerin (preservative), Phenoxyethanol (preservative).

Ratings & Reviews

Best Hydration For Sensitive Skin


PC guide recommended this for dry aging skin, delivers extremely well results. Changed from 2% BHA to 10%AHA gel, per guide for dry sensitive skin. I am 63, do not have wrinkles or any skin issues except, dry skin. The first time combining the two product, I woke to improved skin, especially around my eyes. This serum is water like, works well cocktaling with other serums. Used it AM/PM for a few weeks, now PM only. Spilled 2 bottles, wish there was a solution. On auto delivery but always need to buy more before AHA runs out.


CA or OR


One of my all time fav Boosters


So, this is, in my personal opinion, a wonderful product. I have dry/normal type skin. It can be sensitive to products, but not to this one. It's helped close off my pores near my nose and cheeks. I didn't think it actually would! But it did! I am floored and will keep repurchasing this item. Note: it's also helped my acne scar in terms of fading them!


Lincoln, NE


Amazing product!!! please change the PACKAGING


I went to get my (only ever!) facial and the gal recommended this for making my pores look smaller and it WORKS. I went about 4-5 months without it and there was a HUGE difference when I was able to buy it again. I even stopped worrying about foundation, my skin looked so good. My only complaint is that I have spilled bottles of this TWICE. It's extremely awkward to get a drop out of the dropper and try and replace the dropper tightly right away because you have product in your hand. Then if you don't remember right then to close the bottle tightly, it can be tipped and all that product is lost!!! And it's not cheap! So please, please put it in a tiny pump that just puts out a couple drops. Please find something different to package it in! Because I love the stuff so much and I can't afford to waste it!!


Boise, ID


My favourite thing


I love this stuff. It's like a reset for my face that's light, helps add moisture. And in addition to its research-proven anti aging benefits, it brightens, evens things out, reduces pore size and controls oil. I wish it wasn't so expensive, and I keep wanting to switch to the lower priced Cerave AM/PM, but I love this as a serum.




I will use this forever!!!


Once I added this to my routine (cleanse, skin balancing toner, 2% BHA liquid, then this niacinamide booster) my pores are getting healthy from the inside out. I'm shocked. I have a handful of super enlarged pores on my nose; even they seem minorly improved. The regular pores on my nose are VERY improved. I really think that sticking with the lighter watery products is working for me as well, thick products clog my pores I guess!




Buy It and You Wont Regret It


Okay, I have combination oily.flaky, wrinkly, dull, acne prone, pore filled skin. I was using the Skin Balancing line and as I got older, my skin was acting up more and wasn't an even tone. It became dull and certain spots were flaky while other spots were oily, and acne started popping up. I knew it was time for a change in product... I had to deal with the fact that my skin was getting older and more exposed to elements. I emailed a Paula's Choice Consultant and she IMMEDIATELY told me to get this booster. It was a bit expensive so part of me thought it was a ploy, but BOY was I wrong. This stuff has saved my dull, silly skin and I owe it to that mystery woman who emailed me and told me to buy it. It didn't start working its wonders until after a week of putting it on day and night, so stick with it. Remember you have 60 days to return stuff to Paula's Choice so let it work its magic. After about a week my skin was an even tone, even texture, pores were smaller, bumps weren't turning into acne, everything was wonderful again. Seriously a miracle product.

No-Make-Up Jenna

Warren, Michigan


So far, it is My favorite


Every one is different. I read the reviews below; some people think this one is too harsh for them. For me, I think it is really gentle for me. I love this booster as serum. It is really watery form and I don't feel any harsh or sensitive feeling from it. My skin is extremely oily. I have been using this booster since it came out. I use it every night before the Pc's 1%Retinol booster and after PC's Skin balancing toner, BHA liquid. At daytime, I use PC's Resist toner, Bha, Skinceuticals's PCF serum, and PC's Resist antioxidant lightweight serum. I don't use moisturizer since they are too heavy for me. I'm pretty happy with my skin conditions now. I'm 25 male, and people always think I'm 20..... it is crazy. Because I had bad skin before, but now, everyone admiring my skin. Too dramatic result. I can see the result from this booster! By they way, I love the former design of the bottle, the new packaging is kind of ugly or like Drunk Elephant wanna be. PC doesn't need to change this old bottle.


Los Angeles


Immediate difference!


Have seen an immediate response from my skin since I have begun using this product. I mix it with my moisturizer in the morning and evening. Have seen a measurable shrinkage in my pores. Not too harsh on my skin. Use in combination with Brightness Essence.



This is amazing!!!


I saw an immediate difference with this product. It's like my skin is so young looking and flawless. I use it every night and add it to a moisturizer because it's a liquid product in a dropper. Honestly it's a miracle. I love love love it!


Provo, UT




I use this product daily, usually just in the mornings but sometimes 2x a day. After my morning cleanse, I apply this in conjunction with my hydrating toner (Kiku high moist). It has made a noticeable difference in skin tone - face looks brighter & smoother (smaller, less noticeable pores). Also helps to fade PIH and lessen the appearance of fine lines. Something I'll definitely keep using :)

jolie l.



10% Niacinamide Booster

3.9 213