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The Ordinary Lactic Acid 10% +HA 2%


4.5 out of 5 stars
  • 5 Stars72%
  • 4 Stars16%
  • 3 Stars5%
  • 2 Stars5%
  • 1 Star1%
4.52 / 5 based on 75 Reviews

Product Description

Lactic Acid is an alpha hydroxyl acid that exfoliates the skin. This 10% formulation offers mild exfoliation and is supported with a purified Tasmanian pepperberry known to reduce signs of inflammation and sensitivity that is often associated with exfoliation. A milder 5% formula is available here

This formula contains a studied Tasmanian Pepperberry derivative to help reduce irritation associated with acid use. This derivative is of plant origin and varies in colour seasonally and this colour variation may be apparent in the formula from time to time. 

Contraindications: Lactic Acid should not be used on sensitive, peeling or compromised skin. Please refer to additional sun protection note and other warnings in provided Directions. 

This pH of this formula is approximately 3.8. Lactic Acid has a pKa of 3.8 and pKa is the most important aspect to consider in formulating with acids. pKa implies acid availability. When pKa is close to pH, there is an ideal balance between salt and acidity, maximizing effectiveness of the acid and reducing irritation. Higher pH numbers in such a case would increase salt which counter-intuitively would make the formula even more irritating than if the formula was more acidic. 

Note: While Lactic Acid can result in quick visible benefits, we generally suggest indirect forms of skin exfoliation in favour of direct forms such as this formula due to potential inflammation and sensitivity associated with acids. Please refer to NIOD's Non-Acid Acid Precursor for such a reference. 


Apply once per day, ideally in the PM. Can be diluted with other treatments to reduce strength until skin develops tolerance. Avoid contact with eyes. If irritation persists, discontinue use and consult a physician. (Sunburn Alert: This product contains an alpha hydroxy acid (AHA) that may increase your skin's sensitivity to the sun and particularly the possibility of sunburn. Use a sunscreen, wear protective clothing, and limit sun exposure while using this product and for a week afterwards.)

We have developed a more comprehensive guide on choosing and using our formulations. Please click here to access this guide.


Aqua (Water), Lactic Acid, Glycerin, Pentylene Glycol, Arginine, Potassium Citrate, Triethanolamine, Sodium Hyaluronate Crosspolymer, Tasmannia Lanceolata Fruit/Leaf Extract, Acacia Senegal Gum, Xanthan Gum, Trisodium Ethylenediamine Disuccinate, PPG-26-Buteth-26, Ethyl 2,2-Dimethylhydrocinnamal, PEG-40 Hydrogenated Castor Oil, Ethylhexylglycerin, 1,2-Hexanediol, Caprylyl Glycol.

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Top Questions See all 4 Q&A

  • How often are you supposed to use this a week?1 Answers
  • Does anyone find that the Latic acid 10% + HA causes them to brea...1 Answers
  • would the 10% be ok to start with for someone that has never used...5 Answers
The Ordinary Lactic Acid 10% +HA 2%
The Ordinary Lactic Acid 10% +HA 2%
Reviews (75)
Q&A (4)
Media (8)
Leave a Review
Christopher C.
Worcester, MA
232 reviews
Beauty Junkie Expert Level 3
This stuff is amazing! I just did a video on YouTube comparing this against the Sunday Riley Good Genes. I definitely think this is the better of the two and so much more affordable than Good Genes.

I love that this hasn't caused me any irritation. It has left my skin glowing, smoother and lines are minimized. In fact people have been asking me if I have had botox or fillers done recently. NOPE! Its just The Ordinary's Skincare.

I am so in love with these products and my skin has never looked better. 
Lindsay M.
47 reviews
Beauty Junkie Expert Level 1
I love this product. Lactic acid is a more gentle version of glycolic acid that helps get rid of dead skin cells. I find that the 10% Lactic acid doesn’t irritate or burn my skin in any way. My skin feels softer after using it for a few weeks now. It’s a very watery consistency so i put a few drops on my hands and then press onto my face and follow with moisturizer. For more sensitive skin, I’d say to start with either the 5% version or use the 10% 2-3 times a week until your skin becomes accustomed to it. I love how you can now find the Ordinary products at Sephora or on the site as some stores don’t carry it. It’s also so inexpensive for great, natural ingredients! Love it and 100% recommend it. 
Adrienne S.
53 reviews
Beauty Junkie Expert Level 1
I don't have any problems with this product or anything, but I don't really think it has improved my skin at all. It is also very thin and so it's kind of messy to apply (as opposed to thicker serums). I'm still giving it four stars though because I don't think there's anything wrong with it and I know Lactic Acid works really well for some people, so I think it's just my personal skin type that isn't really affected by it, but I still do use it everyday in my daily skincare routine!
Melissa s.
Manila, AR
110 reviews
Beauty Junkie Expert Level 2
I feel this works fairly well our of the range I've tried so far. The price is right on all the products. Seems to be hit or miss on all the products, for each person different ones work and don't. It's a little confusing and there is a learning curve on some of the products. This one is easy as you just put on and I leave on overnight. I don't have any kind of bad reactions to it. Seems to brighten skins appearance some. I only use once a week. May need to use more often.
41 reviews
Beauty Junkie Expert Level 1
If you are looking for an active to help resurface your skin, Lactic Acid is what you are looking for. I don't have sensitive skin, and had experience with the Ordinary Glycolic toner, so this transition was no problem for me. The product itself comes in a clear glass bottle with a dropper for application. You can apply it after toner or after essence and before serums, preferably at night, since actives make your skin vulnerable to sun. I use mine 2-3 times a week and notice a huge improvement in my skin texture, pore visibility, blackhead, dry skin. The lactic acid actually helps cell turnover but also helps with loosening the bond of old skin that hangs on patches. The product is watery, so a drop or two on your fingers and quick application is key, or mixing with moisturizer if you are a first time acid user, until a tolerance is built. I would say lactic acid is great for all skin types, but works well on my easily dried out skin. I am a lifetime user now!
Edwin P.
3 reviews
I find this product to be an AMAZING every day gentle exfoliant. consistency wireless I find that the older formula was a little easier to apply more so than the new one I believe they took out some ingredients due to consumer observations on the smell of the product. Overall amazing every day exfoliant. Price is too good to beat ($6.79 -30ml). Will definitely repurchase/recommend to anyone that wants a good product for the best price.
Renée W.
Buffalo, NY
22 reviews
I can’t say enough good things about this brand. Amazing price point, no nonsense when it comes to ingredients and they effing work miracles!!! This is my new go to skincare line and I am so love with the results it has given me in such a short amount of time. my new miracle product! My skin texture is smoother, my breakouts minimized practically vanished and my stuff born milia are going away!
Frankie E.
Maplewood, MN
53 reviews
Beauty Junkie Expert Level 2

started with the Ordinary’s Lactic Acid 5% but quickly moved on to
their 10% so I could see more results. The 5% worked better for skin
conditioning, whereas the 10% had more of an overall profound effect
on texture, pigmentation, and glow. I alternate between the two
frequently and I’m so grateful to have options! It’s
irritating than glycolic acid, it also hydrates, increases natural
barrier lipids in the outer layer of skin, and lightens and brightens
the look of skin for those with discoloration.

10% lactic acid would be better for experienced AHA users. It can
cause extreme sun sensitivity and if used too frequently, actually
damage your skin. As long as you’re careful though, this product is
amazing. It gives me a dewy glow like nothing else!

Ariana M.
Chattanooga, TN
201 reviews
Beauty Junkie Expert Level 3
I have sensitive skin with mild redness, I also can’t use physical exfoliants...enter TO lactic acid 10% ❤️ I use this 2x a week and I can tell it’s made a different. I apply it after my cleanser and I wait 20 min before proceeding, I don’t wash it off. My face is much more smooth and soft after using this. I’m on my second bottle!!!
Whitney D.
Boulder , CO
9 reviews
I like this product pretty well. It's not perfect- it stings my skin a bit if I haven't used it in a while, and it makes me irritated if I use it too often. However, it's really good for resurfacing my skin which is great, because I get flaky buildup pretty regularly. Plus, that price is impossible to beat! I might recommend the 5% for newbies or for people who aren't looking for serious resurfacing work.
Kim D.
44 reviews
would the 10% be ok to start with for someone that has never used lactic acid?
Maggie B.
Raleigh, NC
9 reviews
Does anyone know if you can use this with the Retinoid from the Ordinary or other AHA? I am curious how to incorporate this into my routine.
Samantha H.
43 reviews
Does anyone find that the Latic acid 10% + HA causes them to break out or go through a purging phase? I've used this product a few times now and every time the day after I breakout really bad, unsure if this is because my skin doesn't agree with the product or this is just a phase? Any help would be appreciated, thanks x
Ariana M.
Chattanooga, TN
201 reviews
How often are you supposed to use this a week?

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