A-PAD Serum.

"It's a high-dose azelaic acid but in derivative form. Just be aware that you're going to have to invest a little bit longer to see those results, but that's fine. It's a water-based serum, unlike the emulsions that I've talked about earlier. So if you like that really lightweight water-based serum, this could be a great option for you. It's just a really nice affordable azelaic acid derivative. And I think that for me, it's nice to have in the market so that people really have choice."

"If you're looking for something that's super gentle, derivative form is a really great option. And my personal favorite is the Geek & Gorgeous A-PAD. It'll calm, it'll soothe, and it'll help restore equilibrium in the skin in the long term. You really need to give it a four to six week run in, probably double that for an azelaic acid derivative, probably 12 weeks in order to make sure the skin is really primed and set, ready for introducing any higher potency actives. It is a great option though, super inexpensive and one of my personal favorites."

"I'm going to quickly go in with a little azelaic acid, this is the Geek & Gorgeous A-PAD. Another great option in a collagen boosting routine because it's going to help minimize inflammation, so again protect and preserve, and that A-PAD is so gentle, it works wonders if, like me, you've got very acne prone skin, cause A-PAD is a derivative of azelaic acid, clinically proven to actually target acne causing bacteria better than its traditional, you know, pure form azelaic acid. I absolutely love this."

"I've skipped using azelaic acid any day in the past three years. It works wonders on my skin. It calms, it soothes, it hydrates, it reduces acne causing bacteria. It's also great for hyperpigmentation. So if you have dark spots, discoloration, hyperpigmentation, acid is going to be your best friend. I'm going with the Geek & Gorgeous A-PAD because it's super inexpensive. It's one of my favorite forms of azelaic acid in derivative form, super gentle and it works. There are lots of other fancy azelaic acids out there that you could absolutely go for, but this just works and it's so inexpensive. For me it just makes life so simple. I absolutely love it. I use like two drops of this and then spread it across the skin. It is so nice. For people that are new to azelaic acid, this derivative form doesn't prickle. It doesn't give any of that tingling sensation. It just gives a really nice calming and soothing, and over time will definitely help minimize acne, hyperpigmentation, and all of that."

"This is the Geek & Gorgeous A-PAD, this is an [azelaic] acid derivative meaning it's super gentle for people that are still a little skeptical about the idea of using [azelaic] acid with your retinoid. It's even more gentle than [azelaic] acid in its pure form, so this is a super gentle beginner option or for people that are still a little bit dubious about using [azelaic] acid and retinoids together. This is a really great option to just slot into your skincare routine to get all those additional benefits."

"If you've got advanced hyperpigmentation, acne scarring, or anything like that, this works so so so well. You get a light tingling from it because after all, it's an azelaic acid. You will get a light tingling, but nothing too extreme. And it's absolutely fine to use alongside retinoids. This is phenomenal. If you actually absolutely want to do azelaic acid on a budget, you cannot go wrong with this. Geek & Gorgeous A-PAD has never steered me wrong. And because it's a derivative of azelaic acid, it's a little bit more gentle, too. So if you're new, maybe you're scared about the acid in the name and want to go for something gentle, A-PAD. So, so good."

"I would recommend every day of the week, the Geek and Gorgeous A-PAD. It's phenomenal. It's budget friendly. It works for all skin types. That's a great amazing [azelaic] acid. I do have a couple of marks from where I've had breakouts that are fading. I find they fade so quick with this one."

"This is the Geek & Gorgeous A-PAD. This is a 20% azelaic acid derivative. It's super gentle. It's water-based so it just slots seamlessly into your skincare routine and it's super inexpensive. This is phenomenal if you have very acne prone skin because I'd say of all of the formulas, this is the one that's most acne compatible. So, if you're reaching for your azelaic acid to reduce acne causing bacteria and breakouts, this is probably the one that I would go for. You'll get some amazing results, super easy to incorporate, and you get zero prickling and irritation from it. This is like a sensitive skinned person's dream product. You can go in straight away using it twice a day. You don't need to build up to it because it's that gentle, but it really does pack a punch. I love it."

"The Geek & Gorgeous A-Pad is amazing. It's around £12 here in the UK, so around $15. And this is a really great strength of azelaic acid to use alongside your retinoid. You can use them side by side. I would use azelaic acid twice a day, whereas your retinoid you're going to want to use once a day on an evening. That way, it's just going to be so much easier in terms of your retinoid application, minimizing side effects, sensitivity, and irritation."

"This is the Geek & Gorgeous A-PAD. I love this as it's an AIC acid derivative, so unbelievably gentle. So if you're someone that has skin sensitivity, you're prone to redness irritation, and you want to just have the most gentle form of AIC acid to use alongside your retinoid, this Geek & Gorgeous A-PAD wins every time. This is flawless and I cannot recommend it enough."

"My absolute favorite of the Geek & Gorgeous serums is the A-PAD Serum. If you are oily and acne prone, A-PAD is the best AIC acid form you're going to find specifically for oily and acne prone skin. A-PAD is a derivative of AIC acid which is clinically proven to be the best form when it comes to minimizing acne causing bacteria. If like me you are super oily super acne prone, I find A-PAD to be one of the best serums for minimizing that down. If you've got adult acne and breakouts or there's a teen in your life that's going through with hormonal acne, get this, use it twice a day morning and evening and I promise you within one bottle of it your acne will be so much more improved. It reduces the acne causing bacteria which is one of the key triggers for those breakouts. For people out there that are looking for an AIC acid specifically for oily acne prone skin, Geek & Gorgeous is the one."

"This is the one by Geek & Gorgeous, their A-PAD Serum, which is my favorite azelaic acid. It calms, soothes, and reduces irritation in the skin. If you incorporate azelaic acid alongside your retinal, that'll minimize any sensitivity and irritation in the skin, and I feel it just gets you enhanced results. Azelaic acid is also great at evening out the skin tone, so it's definitely a quick win to pair alongside your retinal of choice for some enhanced results and less risk of sensitivity and irritation."

"I typically like to go through my actives, so one night I'll use my retinol, one night I'll use my exfoliant, and one night I'll use the A-PAD Serum, I kind of rotate them through. But azelaic acid really helps me with my redness a lot and my hyperpigmentation. Azelaic acid for the win, for almost every skin issue I have."

"I really didn't know much about acid until I tried the Geek & Gorgeous A-PAD Serum, and this is probably going on six or seven years ago now, maybe longer. Within the first week I was blown away as one of the few products that I can say really made a huge difference in my skin very quickly. Acid is amazing and for me, I think I'm rosacea prone, but my hyperpigmentation and melasma is the biggest issue I have with my skin, and it really helped brighten it up. So if you suffer from rosacea or acne, I think acid is really worth considering adding to your routine. It helps with redness as well. The formula has panthenol, a skin soothing ingredient, betaine salicylate, which is a mild exfoliant, lanolin, which is a skin soothing ingredient, licorice root, another soothing and brightening ingredient, neem extract, which is an antioxidant, green tea water, which is an antioxidant, sodium hyaluronate, which is a humectant, niacinamide for brightening and anti-acne, aloe and beta-glucan, which are both soothing and hydrating ingredients, centella and centella root extract, which is an antioxidant, skin soothing, wound healing, anti-inflammatory ingredient."

"The Geek & Gorgeous A-PAD Serum really made a huge difference to me. It's super gentle with 20% potassium azelate, which is a derivative of azelaic acid known to be very gentle, so if you haven't used azelaic acid before it's a nice product to start with. It's great for reducing redness from blemishes, pigmentation, and just plain redness in the skin, and at the same time it's gentle and non-irritating. There's not a ton of other ingredients in here, it's really affordable, and it's just a short ingredient list so there's not a lot of other ingredients that might irritate your skin. When I added this into my skincare routine a few years ago it was one of the few products that made an absolutely huge difference in my skin. If you have redness, acne, hyperpigmentation, anything like that, I highly recommend giving it a try. It's well worth it and it's very affordable."

"Geek and Gorgeous A-PAD Serum, wonderful product. This one uses their human fiber blast conditioned media, they have a trademark on it, it also contains peptides and botanicals, great for anti-aging skin renewal. It certainly made a huge difference in my fine lines, noticeable difference. But it's $295 which is really expensive, so it's on sale from time to time. It's worth buying it on sale."

"Geek & Gorgeous A-PAD uses an AIC acid derivative and I found that made huge differences in my skin just within like 30 days it was amazing. If you have rosacea, hyperpigmentation, melasma, or acne, this is great. It's antibacterial, anti-inflammatory, brightening, and also has skin cell regulating benefits to it. A lot of other acids like glycolic acid or lactic acid or salicylic acid can be sensitizing, but azelaic acid I've yet to find any issues using it even on my neck, so it's a wonderful ingredient for so many different things. The formula also has niacinamide for anti-acne and skin brightening, panthenol for soothing and wound healing, centella leaf extract, centella asiatica extract, and centella root extract which are all soothing, antioxidant, and help with redness and anti-inflammatory benefits, plus snail secretion filtrate which is an antioxidant and humectant with glycoproteins, enzymes, hyaluronic acid, copper peptides, and antimicrobial peptides."

"The A-PAD Serum is one of the few skincare products where I tested it out and I noticed a difference very very quickly and there's not a lot of brands out there like that have done that but this is one of them. I just loved it."

"I really hadn't tried any azelaic acid products in my first like two or three years reviewing things and then this little brand called Geek and Gorgeous came along with a product called their A-PAD Serum which contained an azelaic acid derivative and I used it and I was just amazed with the benefits from it. It has a nice serum texture and it absorbs quickly. I fell in love with azelaic acid because it's such an amazing ingredient for so many different things, different types of skin that you would never think would benefit from the same ingredient all kind of come together with this ingredient. It's absolutely amazing if you have rosacea prone skin, redness prone skin, breakout prone skin, oily skin, melasma, hyperpigmentation. This one's got 15% which is a nice sweet spot."

"The Geek & Gorgeous A-PAD Serum, which is an isleic acid derivative. That's the one I used when I noticed the most benefits. It really helped brighten my skin up super fast, really amazingly. It was one of the handful, I'd say there's probably 10 products in my life that have been near instant game changers. That's on that list. And it's like 12 bucks."

"It contains an amazing amount of 50 different peptides as well as several antioxidants such as resveratrol, aanthin, ubiquinone, and vitamin C. So, it's a really good product. Certainly worth checking out."

"Their A-PAD Serum is the one I've got here, it's 13 bucks and this is one of a handful of products that were total game changers for my skin. After using it for a couple weeks I could notice my skin was looking much brighter, a lot of the hyperpigmentation melasma was reduced and my skin just felt better."

"This A-PAD Serum is one of the few game changing products I've truly experienced that have really made my skin better. It really helped with my melasma, redness, and sensitivity. The A-PAD is an azelaic acid derivative, and azelaic acid is the amazing ingredient."

"My second favorite product from Geek & Gorgeous is their A-PAD. This is in the handful of skincare products that's probably my top five of all time, ones that have made a noticeable difference very quickly. Within a week, my skin has pretty severe melasma and hyperpigmentation and rosacea as well, redness, all that stuff. This stuff for me was a game changer. Within five or six days of using it, I could tell a huge difference in benefit in my skin. Especially if you have rosacea, redness, pigmentation, dark spots, any of that stuff, this is great."

"This product was a total game changer for me. It's got a 20% azelaic acid, which is an ingredient that helps with rosacea, and it's got 6% pure potassium azelate, which is an azelaic acid derivative, and then it's got lanolin. Very affordable, wonderful product, hugely helpful for me. So if you suffer from rosacea, even just redness, it's very helpful."