
Amazon Prime Free Trial
FREE Delivery is available to Prime members. To join, select "Try Amazon Prime and start saving today with FREE Delivery" below the Add to Cart button and confirm your Prime free trial.
Amazon Prime members enjoy:- Cardmembers earn 5% Back at Amazon.com with a Prime Credit Card.
- Unlimited FREE Prime delivery
- Streaming of thousands of movies and TV shows with limited ads on Prime Video.
- A Kindle book to borrow for free each month - with no due dates
- Listen to over 2 million songs and hundreds of playlists
Important: Your credit card will NOT be charged when you start your free trial or if you cancel during the trial period. If you're happy with Amazon Prime, do nothing. At the end of the free trial, your membership will automatically upgrade to a monthly membership.
One-time purchase:
$39.00$39.00 $39.00 per Fl Oz ($39.00$39.00 / Fl Oz)
Ships from: Amazon Sold by: Paula's Choice Skincare
Subscribe & Save:
5%
10%
$37.05$37.05 $37.05 per Fl Oz ($37.05$37.05 / Fl Oz)
$35.10 with 10 percent savings $35.10 $35.10 per Fl Oz ($35.10$35.10 / Fl Oz)
First delivery on Mar 10 FREE delivery Thursday, March 6
Ships from: Amazon Sold by: Paula's Choice Skincare
- No fees
- Cancel anytime
Unlock 10% savings
Save 10% when you receive 5 or more products in one auto-delivery to one address. Currently, you'll save 5% on your Jun 3 delivery.Choose how often it's delivered
From once every 2 weeks to once every 6 monthsSkip or cancel any time
We'll send you a reminder before each delivery.Potential Savings
Potential Yearly Savings is an estimate based on your selected delivery frequency and the base discount. Actual savings may change based on delivery frequency and discount eligibility.Pricing
While you will always receive a Subscribe & Save discount, individual product prices can go up or down over time. If the price of your subscribed product changes, the new price will be displayed in your order review email and will be applied only on future shipments. You can review your subscription price and edit or cancel your subscription at any time
Added to cart
-
-
-
-
-
-
-
6 VIDEOS
-

Image Unavailable
Color:
-
-
-
- To view this video download Flash Player
Paula's Choice BOOST 10% Azelaic Acid Booster Cream Gel, Licorice Extract & Salicylic Acid, Oil-Free Skin Brightening Serum
Premium Brand Sourced
We work closely with your favorite premium beauty brands and their approved resellers to ensure the premium products sold in our stores are authentic.
Return this item for free
We offer easy, convenient returns with at least one free return option: no shipping charges. All returns must comply with our returns policy.
Learn more about free returns.- Go to your orders and start the return
- Select your preferred free shipping option
- Drop off and leave!
Learn more
Learn more
Return this item for free
We offer easy, convenient returns with at least one free return option: no shipping charges. All returns must comply with our returns policy.
Learn more about free returns.- Go to your orders and start the return
- Select your preferred free shipping option
- Drop off and leave!
Bundles with this item
Purchase options and add-ons
Skin Type | Oily, Combination, Acne Prone, Oily Acne Prone, Dry, Normal |
Product Benefits | This multi-tasking serum reduces the look of blemishes, smooths bumpy texture, and visibly improves uneven tone. See more |
Use for | Face |
Scent | Unscented |
Special Ingredients | Antioxidants, Salicylic Acid |
Description
Benefits
Suggested use
Buy it with

Related Climate Pledge Friendly items
- Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Packaging efficiencyReduced air and/or water in the product or packaging for more efficient transportation.As certified byCompact by Design (Amazon-developed Certification)
Compact by Design identifies products that, while they may not always look very different, have a more efficient design. By reducing water and/or air in the product or packaging, these become more efficient to ship. At scale, these small differences in product size and weight lead to significant carbon emission reductions. - Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Safer chemicalsMade with chemicals safer for human health and the environment.As certified byCradle to Cradle Certified
Cradle to Cradle Certified is the world's most comprehensive standard for safe, circular and responsible products. Certified products meet science-based requirements that have positive benefits including health and wellbeing, material reuse, emissions reductions, water quality, and fair and safe labor practices. The Cradle to Cradle Certified Product Standard is set by the Cradle to Cradle Products Innovation Institute, a global non-profit dedicated to powering innovation for a prosperous economy.Certification LevelSILVER ACHIEVEMENT LEVELWorker well-beingManufactured on farms or in facilities that protect the rights and/or health of workers.As certified byCradle to Cradle Certified
Cradle to Cradle Certified is the world's most comprehensive standard for safe, circular and responsible products. Certified products meet science-based requirements that have positive benefits including health and wellbeing, material reuse, emissions reductions, water quality, and fair and safe labor practices. The Cradle to Cradle Certified Product Standard is set by the Cradle to Cradle Products Innovation Institute, a global non-profit dedicated to powering innovation for a prosperous economy.Certification LevelSILVER ACHIEVEMENT LEVELManufacturing practicesManufactured using processes that reduce the risk of negative environmental impact.As certified byCradle to Cradle Certified
Cradle to Cradle Certified is the world's most comprehensive standard for safe, circular and responsible products. Certified products meet science-based requirements that have positive benefits including health and wellbeing, material reuse, emissions reductions, water quality, and fair and safe labor practices. The Cradle to Cradle Certified Product Standard is set by the Cradle to Cradle Products Innovation Institute, a global non-profit dedicated to powering innovation for a prosperous economy.Certification LevelSILVER ACHIEVEMENT LEVEL - Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Packaging efficiencyReduced air and/or water in the product or packaging for more efficient transportation.As certified byCompact by Design (Amazon-developed Certification)
Compact by Design identifies products that, while they may not always look very different, have a more efficient design. By reducing water and/or air in the product or packaging, these become more efficient to ship. At scale, these small differences in product size and weight lead to significant carbon emission reductions. - Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Safer chemicalsMade with chemicals safer for human health and the environment.As certified byOEKO-TEX MADE IN GREEN
Made in Green by Oeko-Tex verifies that the article has been manufactured using processes with a reduced environmental impact and under socially responsible working conditions. The label also verifies that the product has been tested for substances that could harm the body and environment. Thanks to the unique product ID, each product can be easily traced by entering the certification number on the Label Check on the Made in Green website, where more information about the production facilities is provided.Certification NumberM1KN8XW04Manufacturing practicesManufactured using processes that reduce the risk of negative environmental impact.As certified byOEKO-TEX MADE IN GREEN
Made in Green by Oeko-Tex verifies that the article has been manufactured using processes with a reduced environmental impact and under socially responsible working conditions. The label also verifies that the product has been tested for substances that could harm the body and environment. Thanks to the unique product ID, each product can be easily traced by entering the certification number on the Label Check on the Made in Green website, where more information about the production facilities is provided.Certification NumberM1KN8XW04Worker well-beingManufactured on farms or in facilities that protect the rights and/or health of workers.As certified byOEKO-TEX MADE IN GREEN
Made in Green by Oeko-Tex verifies that the article has been manufactured using processes with a reduced environmental impact and under socially responsible working conditions. The label also verifies that the product has been tested for substances that could harm the body and environment. Thanks to the unique product ID, each product can be easily traced by entering the certification number on the Label Check on the Made in Green website, where more information about the production facilities is provided.Certification NumberM1KN8XW04 - Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Safer chemicalsMade with chemicals safer for human health and the environment.As certified byCradle to Cradle Certified
Cradle to Cradle Certified is the world's most comprehensive standard for safe, circular and responsible products. Certified products meet science-based requirements that have positive benefits including health and wellbeing, material reuse, emissions reductions, water quality, and fair and safe labor practices. The Cradle to Cradle Certified Product Standard is set by the Cradle to Cradle Products Innovation Institute, a global non-profit dedicated to powering innovation for a prosperous economy.Certification LevelSILVER ACHIEVEMENT LEVELWorker well-beingManufactured on farms or in facilities that protect the rights and/or health of workers.As certified byCradle to Cradle Certified
Cradle to Cradle Certified is the world's most comprehensive standard for safe, circular and responsible products. Certified products meet science-based requirements that have positive benefits including health and wellbeing, material reuse, emissions reductions, water quality, and fair and safe labor practices. The Cradle to Cradle Certified Product Standard is set by the Cradle to Cradle Products Innovation Institute, a global non-profit dedicated to powering innovation for a prosperous economy.Certification LevelSILVER ACHIEVEMENT LEVELManufacturing practicesManufactured using processes that reduce the risk of negative environmental impact.As certified byCradle to Cradle Certified
Cradle to Cradle Certified is the world's most comprehensive standard for safe, circular and responsible products. Certified products meet science-based requirements that have positive benefits including health and wellbeing, material reuse, emissions reductions, water quality, and fair and safe labor practices. The Cradle to Cradle Certified Product Standard is set by the Cradle to Cradle Products Innovation Institute, a global non-profit dedicated to powering innovation for a prosperous economy.Certification LevelSILVER ACHIEVEMENT LEVEL - Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Safer chemicalsMade with chemicals safer for human health and the environment.As certified byCradle to Cradle Certified
Cradle to Cradle Certified is the world's most comprehensive standard for safe, circular and responsible products. Certified products meet science-based requirements that have positive benefits including health and wellbeing, material reuse, emissions reductions, water quality, and fair and safe labor practices. The Cradle to Cradle Certified Product Standard is set by the Cradle to Cradle Products Innovation Institute, a global non-profit dedicated to powering innovation for a prosperous economy.Certification LevelSILVER ACHIEVEMENT LEVELWorker well-beingManufactured on farms or in facilities that protect the rights and/or health of workers.As certified byCradle to Cradle Certified
Cradle to Cradle Certified is the world's most comprehensive standard for safe, circular and responsible products. Certified products meet science-based requirements that have positive benefits including health and wellbeing, material reuse, emissions reductions, water quality, and fair and safe labor practices. The Cradle to Cradle Certified Product Standard is set by the Cradle to Cradle Products Innovation Institute, a global non-profit dedicated to powering innovation for a prosperous economy.Certification LevelSILVER ACHIEVEMENT LEVELManufacturing practicesManufactured using processes that reduce the risk of negative environmental impact.As certified byCradle to Cradle Certified
Cradle to Cradle Certified is the world's most comprehensive standard for safe, circular and responsible products. Certified products meet science-based requirements that have positive benefits including health and wellbeing, material reuse, emissions reductions, water quality, and fair and safe labor practices. The Cradle to Cradle Certified Product Standard is set by the Cradle to Cradle Products Innovation Institute, a global non-profit dedicated to powering innovation for a prosperous economy.Certification LevelSILVER ACHIEVEMENT LEVEL
Product details
- Package Dimensions : 4.61 x 1.38 x 1.02 inches; 1 ounces
- UPC : 655439077507
- Manufacturer : Paula's Choice
- ASIN : B00V4PNAI4
- Country of Origin : USA
- Best Sellers Rank: #2,359 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care)
- #72 in Facial Serums
- Customer Reviews:
Product guides and documents
Videos
Videos for this product
1:28
Click to play video
First hand review of Paulas Choice BOOST Azelaic Acid
Cat’s Must Haves ✅
Videos for this product
1:27
Click to play video
do NOT buy before watching this! Paula's Choice BOOST
Ryan
Videos for this product
1:00
Click to play video
Before and After Using This Product! Watch Before You Buy!
Jenessa
Looking for specific info?
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers find that the skin serum helps reduce redness and swelling on the face. They find it effective and say it works well with other products and under makeup. However, some customers feel it's a little pricey and small for the price. Opinions vary on the smell and whether it causes irritation.
AI-generated from the text of customer reviews
Customers appreciate the skin serum's benefits for improving skin clarity and reducing redness. They find it helps reduce swelling and improves skin smoothness, clarity, and pore size. Many say it has transformed their face and keeps redness and breakouts away.
"...No scent but it does sting a bit. It does leave my skin smooth but it’s not for moisturizing. It helps with pores. And pretty effective...." Read more
"I’ve just started using it, and I’m already noticing positive changes in my skincare...." Read more
"Very effective for redness and great for a gentle (at least as gentle as you can get) chemical exfoliant for acne or hyperpigmentation...." Read more
"...It controls redness all day — and that's what I bought it to do — but what I did not expect is how the combo of 10% azelaic acid and .5% SA would..." Read more
Customers find the product effective and worth trying. It works well with other products and under makeup. Some say it's a good product for redness, absorbing quickly. The texture is great and a little goes a long way.
"...It helps with pores. And pretty effective. I’ve been using this and the naturium brand which is cheaper." Read more
"...I can see the difference, it definitely works!" Read more
"...and this product is giving me the results it’s definitely worth it!" Read more
"Pimple assassin in a tube. Works better than anything nonprescription I can find." Read more
Customers like the texture of the skin serum. It has a smooth, white lotion-like texture that sinks in easily. They find it helps with texture and is lightweight. The serum layers well with moisturizers, sunscreen, and makeup. Azeleic acid is effective for improving skin texture.
"I have red face, this really helps. Good texture, pretty thick. I put it on almost last before my moisturizer...." Read more
"...I now have smoother, slicker skin than Moo Deng 😭 If Paula's Choice ever stops making this I will go into full revolt...." Read more
"I really adore the texture of this product - compared with The Ordinary one, this one is much thinner and easy to absorb...." Read more
"...Texture / smell ---- There is no smell and it's a white lotion-like texture similar to lightweight Aveeno...." Read more
Customers have different views on the product's smell. Some find it has no scent, while others say it has a distinct smell and smells bad.
"...Sometimes you can get cheap when it’s on sale at Ulta/Sephora. No scent but it does sting a bit...." Read more
"...Slightly weird smell" Read more
"...It feels pretty great and smells medical/clean/chemically?..." Read more
"...That's not it's purpose. It doesn't have a scent, or if it does it's so light it's difficult to detect ......" Read more
Customers have different experiences with the skin serum's irritation. Some find it gentle and mild, clearing up breakouts and rashes without irritating their sensitive skin. Others report redness, itchiness, and allergic reactions.
"...No scent but it does sting a bit. It does leave my skin smooth but it’s not for moisturizing. It helps with pores. And pretty effective...." Read more
"Very effective for redness and great for a gentle (at least as gentle as you can get) chemical exfoliant for acne or hyperpigmentation...." Read more
"...It can be a bit itchy. In my case its really only itchy when its on too thickly. This also gets better over time...." Read more
"...It’s fragrance free, which is a plus. It also seems gentle so far and I’ve used it twice a day for 3 days already...." Read more
Customers are dissatisfied with the value for money of the skin serum. They find it a little pricey but effective, but they expect more from such a small container for that price. Some say it's not the right product overall, but the serum itself is good.
"Paula’s Choice is pretty expensive. Sometimes you can get cheap when it’s on sale at Ulta/Sephora. No scent but it does sting a bit...." Read more
"...if you use it on a lot of the face like me for my T-zone, it is pretty expensive...." Read more
"A little pricey but the product actually works" Read more
"...of product I receive when I buy product from Sephora.. love 💕 the product vs price...." Read more
Customers are unhappy with the small size of the skin serum. They say it's too small for a travel size and too small for the price.
"...is barely enough for a week's vacation but that's it - it's a very tiny tube. It looks like a sample tube." Read more
"...The tube is small, but I think there's enough to get a sense of whether or not the product would work for someone...." Read more
"The size is very small because it's a SAMPLE (Boost), and same price as another I usually buy that is literally 1/2 the size...." Read more
"...Travel size is suuuper tiny, but nice for your purse or on a trip." Read more
Reviews with images

I am seeing results
Top reviews from the United States
There was a problem filtering reviews right now. Please try again later.
- Reviewed in the United States on October 26, 2024Size: 1 Fl Oz (Pack of 1)Verified PurchasePaula’s Choice is pretty expensive. Sometimes you can get cheap when it’s on sale at Ulta/Sephora. No scent but it does sting a bit. It does leave my skin smooth but it’s not for moisturizing. It helps with pores. And pretty effective. I’ve been using this and the naturium brand which is cheaper.
- Reviewed in the United States on February 5, 2025Size: Travel Size - 0.17 Fl OzVerified PurchaseI’ve just started using it, and I’m already noticing positive changes in my skincare. Remember to always test your product on a small spot, like your arm, before applying it to your face. 💪
- Reviewed in the United States on December 25, 2024Size: 1 Fl Oz (Pack of 1)Verified PurchaseVery effective for redness and great for a gentle (at least as gentle as you can get) chemical exfoliant for acne or hyperpigmentation. It feels pretty great and smells medical/clean/chemically? which I don't know if I'm weird, but I like and doesn't peel unlike many other azelaic acids. Only problem is that you get a very small tube for 40 dollars and while it would be great if you used it for spot treating, if you use it on a lot of the face like me for my T-zone, it is pretty expensive. I used it sparingly (like once a week) and I'm almost out in about 4 months.
- Reviewed in the United States on February 20, 2025Size: Travel Size - 0.17 Fl OzVerified PurchaseI've been dealing with large pores my whole life... I've been using this product for about 3 months and omg I love it! I can see the difference, it definitely works!
- Reviewed in the United States on August 27, 2019Size: 1 Fl Oz (Pack of 1)Verified PurchaseI have acne. It’s mild now. four months ago (and for the last two years before that), my face was a swollen, blotchy mess much of the time.
Then I started using this, and I took a photo of my face every day for all that time to see the progress, because here’s the thing about azelaic acid: It can behave like a (safe, non-resistance-forming) antibiotic for your skin, but it is very slow to show results. As I review my photos, I can see that for about two months of using this I didn’t really have a noticeable improvement. But then, after that, I can see a gradual improvement. By month four, my skin is so much better that I don’t think I’ll ever stop using this.
No, my skin isn’t perfect. I have redness on my nose that appears to have resulted from acne, and I still get small zits here and there, but my days of deep, swollen, achy, itchy zits that last for weeks are gone. I haven’t had one like that in well, about two or three months.
If you’re considering getting this, but you’re put off by the price, I get you. I thought so too. But this bottle lasts about two months if you use it twice a day, because you really don’t use a lot. So it isn’t as bad as it seems.
I use this product as the very last in my night time skin routine — and I use it anywhere I can feel I will have a zit, anywhere I have one, and where I’ve recently had one — but I also just put a thin amount in the places I know have a tendency to breakout.
I also use it in the morning, but then only a very small amount beneath sunscreen and makeup. It has a tendency to pill unfortunately, so you’ll need to be particularly careful with it. In the daytime use an extra tiny little bit of it. Moisturize the areas it will be on extra, let the moisturizer sink in, apply this, and gently pat products on top, don’t rub. For real, don’t rub or it’ll come right off (you can rub it in when applying it, just not once its been on your skin for more than about a minute).
It can be a bit itchy. In my case its really only itchy when its on too thickly. This also gets better over time.
I’ve found other spot treatments to be too harsh and drying, and/or not work well. This isn’t the fastest spot treatment, but if you can be patient, this is just awesome.
- Reviewed in the United States on October 8, 2024Size: Travel Size - 0.17 Fl OzVerified PurchaseLooks like the free sample size tube of product I receive when I buy product from Sephora.. love 💕 the product vs price.
- Reviewed in the United States on November 19, 2024Size: 1 Fl Oz (Pack of 1)Verified PurchaseI have red face, this really helps. Good texture, pretty thick. I put it on almost last before my moisturizer. You’ll want to patch test because it can sting since it’s acid. No negative effects and I combine with moisturizer and toner in the mornings. Much more affordable than other products that claim to do the same thing. Slightly weird smell
- Reviewed in the United States on December 15, 2024Size: Travel Size - 0.17 Fl OzVerified PurchaseI gave this product a chance because my skin has done well before using azelaic acid and salicylic acid separately. I tried this product to see if it would help relieve my acne and lighten my PIE but it instead broke me out with large, painful cystic acne. I think the combination of mixing the 2 acids into one product irritated my skin.
This reaction was only after one use. I was planning to use it again to see if it subsided, but after reading the reviews on the Paula’s Choice website, it seems like this is a common side effect for some people, and using it repeatedly only makes it worse. I won’t be using it again unfortunately and will go back to using these 2 acids separately.
Top reviews from other countries
- Very niceReviewed in India on December 24, 2024
5.0 out of 5 stars But so small
Size: Travel Size - 0.17 Fl OzVerified PurchaseVery very nice 👍
-
BayanhussReviewed in Saudi Arabia on May 1, 2024
5.0 out of 5 stars ممتاز
Size: 1 Fl Oz (Pack of 1)Verified Purchaseوصلني مغلف ونظيف يعطيكم العافية
اما بخصوص استخدامي للمنتج>
ماشفت اي نتيجة رغم اني التزمت وزعلت كثير
- Avanti MalusteReviewed in India on October 16, 2020
5.0 out of 5 stars Just what my skin needed
Size: 1 Fl Oz (Pack of 1)Verified PurchaseI have oily skin and get hormonal break outs and maskne. I mix this with my moisturizer and it’s honestly helped calm my skin down SO MUCH. I find my complexion has improved too. And I’ve been using it less than a month! Don’t forget to wear sunscreen if you use it in the day like I do!
- M.J.A.Reviewed in Australia on May 8, 2024
1.0 out of 5 stars Completely useless for red spots.
Size: 1 Fl Oz (Pack of 1)Verified PurchaseI am beyond disappointed by this product. After reading the reviews I expected this to remove red spots/acne marks from my skin. I didn't see any noticeable changes at the start so I waited... and waited... aaaand waited.
It has been a month and a half and my skin still looks the same. I paid a ridiculous amount of money for a miniscule fragment of a supposedly effective treatment and let it slide, but enough is enough.
I'm never buying this product (or any of Paula's Choice products for that matter) ever again.
- Hello! Product doesn’t fit me, seems as fake;( I was waiting it for a long time;( finally went to the dermatologistReviewed in the United Arab Emirates on November 15, 2024
2.0 out of 5 stars I am not glad
Size: 1 Fl Oz (Pack of 1)Verified PurchaseI hope I will choose different one