the ordinary

The Ordinary Lactic Acid 10% + HA 2%

The Ordinary Authentic
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The Ordinary Lactic Acid 10% + HA 2% by The Ordinary


Lactic Acid is an alpha hydroxyl acid that exfoliates the skin. The Ordinary Lactic Acid 10% + HA 2% 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.

The Tasmanian Pepperberry derivative helps to reduce irritation associated with facial acid use, including alpha-hydroxy acids such as lactic acid. Please note that Tasmanian Pepperberry varies in colour seasonally, and this colour variation may be apparent in The Ordinary Lactic Acid 10% + HA 2%.

To learn more about how to navigate this brand, click here to read our skincare guide on The Ordinary. 

When to not use The Ordinary Lactic Acid 10% + HA 2%: 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. Ensure that this formula is introduced slowly into your routine.

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.

 After opening, this product must be used within three months.


Aqua (Water), Lactic Acid, Glycerin, Pentylene Glycol, Propanediol, Sodium Hydroxide, Sodium Hyaluronate Crosspolymer, Tasmannia Lanceolata Fruit/Leaf Extract, Hydroxyethylcellulose, Isoceteth-20, Trisodium Ethylenediamine Disuccinate, Ethylhexylglycerin, 1,2-Hexanediol, Caprylyl Glycol.

Our formulations are updated from time to time as part of our commitment to innovation. As such, the ingredient list shown here may vary from the box of the product depending on time and region of purchase. Lactic Acid has a natural odour that some people find unpleasant. This formula was updated in October 2017 to use a grade of lactic acid that has no odour per customer feedback. Additionally, this update removed the use of carrageenan, a seaweed-based viscosity-enhancer, also due to feedback from customers. These changes improve the sensory aspects of the formula but do not impact efficacy.

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Reviews (21)
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A good starting point - 17-04-2018 by

This is quite a good product and I’d definitely recommend it over a mechanical exfoliant. It is gentle, absorbs easily and is a good base under serums and moisturisers, helping them to penetrate more effectively.
I don’t find it very effective for improving texture or clarity, which is strange because I’ve had 20% lactic acid peels in the salon which were fabulous, and was hoping this milder concentration would have similar results over time. It’s a bit blah but if it works for you, go for it!

Great chemical exfoliation - 05-04-2018 by

Lovely to put on at night and wake up with smoother, softer, clearer skin. I think it helps to fade recent acne scars. Have repurchased

A great product for face and body - 03-04-2018 by

I'm onto my third bottle of this now, and I think I will keep going back to it as I can't imagine anything else that could be better for the price.

10% LA 2% HA not only smooths and brightens my skin within one night of use, but I swear it somehow improves the firmness as well?! Whenever I have a break and then start using it again, without fail I wake up the next morning with that smooth, glowy forehead.

I love lactic acid because it exfoliates evenly without being harsh, and it stimulates your skin's own natural hydration as well. However, my favourite way to use this product is on my body - mostly arms, shoulders and decolletage. I apply a full dropper per arm a few nights per week, and follow it with body lotion and it keeps my arm skin really smooth (I always put sunscreen on my body every day too).

This product has no discernable smell and is a very runny consistency - more like a toner than a serum, if that makes sense. I drop some into my hands and then pat all over, and it sinks right in.

Very happy with it - 03-04-2018 by

I’ve started using The Ordinary products a few months back and I couldn’t be happier - my skin has never looked better.
The alpha lipoid acid is part of my evening routine. I cycle it with alpha lipoid acid and retinol and use it before resveratrol, matrixyl and moisturiser.
I feel like this combination of products works for me and will stick with it.

Fantastic AHA for regular use - 26-03-2018 by

I love this and have gone through a couple of bottles. I use this every second night and don't find it drying on my sensitive skin. I love that it includes HA, which means I don't need to use a separate HA serum at night.
This has brightened my skin and pigmentation and i think it might be helping with knocking the edge off fine line. Love it and will re-buy.

Changed my skin - 22-03-2018 by

This stuff is amazing. My skin tolerates it well so I prefer using this to physical exfoliants which tend to break me out. I alternate this each day with The Ordinary Buffet and the two work well together.
Very effective for the price.

Smooth Skin - 19-03-2018 by

I've not long started using this product in conjunction with a couple of other products from The Ordinary and am amazed at how fantastic they are for the price!

I heeded the warning to be careful with the 10% lactic acid but have had no issues.

I can't believe how smooth and supple my skin feels after using this product.

Highly recommend as part of your skin regime.

Suitable even for sensitive skinned people - 19-03-2018 by

This little bottle changed my mind on AHA's and sensitive skin. I'm almost translucently fair, with sensitive skin and eczema. I've tried Liquid Gold but felt like it burnt through my skin, and could barely apply it.

This product is probably a little stickier than others, but the odour was very minimal. It hasn't caused any burning bar a slight tingling. I can apply it handsomely at night without reaction a few times a week. It has improved areas of pigmentation on my skin when used in combination with The Granactive Retinoid Emulsion 2% alternating, and my skin certainly looks clearer from it's use.

This is one of my favourite products of The Ordinary's range.

Works a treat on your arms to clear up Keratosis - 13-03-2018 by

I have super sensitive skin and I can tolerate the 10% Lactic well.

Overnight application or even a few hours in the evening and it leaves my skin smooth and exfoliated.. and the bonus is that as its so cheap I can smother it on the tops of my arms to treat my mild Keratosis.. arms have never felt so smooth.

If you are looking for something stronger I can also recommend the Alpha Lipoic Acid for a more dramatic result.

Love - 06-03-2018 by

Love this product and the lovely tingling but not drying feeling it gives me. I alternate between this one, Liquid Gold and The Ordinary's Retinoid. Great to clear and brighten the skin with minimal effort!

Effective exfoliating serum - 06-03-2018 by

Another great product from The Ordinary - an effective exfoliator with a syrupy like consistency. I can't use this too often due to sensitive skin and would only use at night, otherwise would highly recommend adding to your regime (unless you have overly sensitive and/or broken skin).

Amazing! - 05-02-2018 by

This product is part of my skin regimen together with 3 other The Ordinary products. And my skin never looked better! My skin type is oily since I was in my teens but now its so much better. The best thing about these products is that they’re super affordable. And I’m always for something that wont hurt your bank and works!

Definitely helps with hyperpigmentation - 04-12-2017 by

I use this product in conjunction with The Ordinary's Vitamin C Suspension 30% in Silicone as well as The Ordinary's Advanced Retinoid 2% products. While I had been using the Vitamin C and the Retinoid products for some time, it wasn't until I added the Lactic Acid to my routine that I saw a noticeable difference. Hyperpigmentation that covered parts of my cheeks seemed to break up and has been fading. I noticed an improvement in my skin after about 2 weeks of using the Lactic Acid. My partner, just as skeptical as I am about ridiculous skincare claims, has also remarked on the difference in the hyperpigmentation.

I use these products in a 4-night cycle. Lactic Acid on the first night, the Vitamin C the second and the Retinoid the third night. In addition, once these products are absorbed I follow up with a combination of The Ordinary's Rosehip and Marula oils. On the fourth night I give my skin a rest and use Rosehip and Marula oils only.

I can't say whether this routine would work for you, but it's done wonders for me.

I have mature (45 yrs) olive combination skin.

Gently exfoliates and helps my dry clogged pores on my cheeks - 22-11-2017 by

I like it, it gently peels the problem skin I have been having (where skin on my chin and cheeks gets built up and wont exfoliate, leading to trapped dry pimple/pores). I am still working on the amount I to use and how frequent I should use it, but so far I have had no issues with the product. I haven’t used acids before and have no issue with it as it seems quite gentle.

Effectively treats keratosis pilaris - 02-11-2017 by

I use The Ordinary's Lactic Acid 10% +HA 2% on the back of my arms where i suffer from keratosis pillaris, an over production of keratin in the skin, blocking the pores and creating little white bumps (yuck!).

It is extremely effective at keeping my KP at bay, and my arms smooth. I was very self conscious about it for so long, and now am so happy with my skin!!

Great product and price - 22-10-2017 by

This is fantastic. I use it every second day at night and always wake up with moisturised and beautiful looking skin.
I will be buying this again.

Loving my skin - 10-10-2017 by

I use this as a part of my weekly skin routine and the results have been beautiful, my skin looks clearer and more refined. Will definitely be buying this again to keep it a part of my skin routine.
Trying this was stranger for the first time because I hadn't tried chemical exfoliants before, but I am definitely a convert after seeing and feeling the results.

Love this! - 27-09-2017 by

I have normal skin and this is an excellent night exfoliation a few nights a week. Love the way it feels --- it isn't as powerful as Liquid Gold so if you are looking for something to use more frequent then this would be the one.

Love this product for my keratosis pilaris! - 22-09-2017 by

This is fantastic! I use it at night, several times a week. It's been amazing, I highly recommend this product if you have the dreaded "chicken skin" on your arms/legs. I use it on my face a could times a week as well, and it has definitely made my skin clearer. But mostly I am blown away by how well it has treated my keratosis pilaris, because that is so difficult to treat.

Gentle but thorough exfoliant - 11-07-2017 by

I use this three to four times a week as part of my regime, and have found it to be hugely gentle but effective in exfoliating my skin. I have dry/combination skin and was concerned at first it would dry me out or give me rashes but it does the opposite - absorbs greatly and gives me noticeably brighter and cleaner skin.

In Love - 02-06-2017 by

I use this every second night as a part of my skincare regime. I'll either apply a generous amount and leave it on my skin as a 'mask' for 15 minutes and wash off, or apply a smaller amount and tap into my skin until it is absorbed. I would say that it doesn't usually absorb fully and can leave a tacky like feeling on the skin but other than that it is great. I used to always use abrasive exfoliators that you physcially rub across your skin but I found not only were they aggravating my already tender acne prone skin but that it wasnt actually giving me long term results. Since finding the Ordinary Skincare range and reading the science behind AHAs I'm hooked on this product. My skin is feeling softer and glowing more than it ever has. While it hasn't erased my acne scarring completely it's definitely helping the blemishes fade faster.
Can't wait until Adore Beauty stocks the AHA 30% + BHA 2% Peeling Solution so I can try this exfoliating product from The Ordinary next!

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