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Highlights
Summary
The COSRX The Alpha-Arbutin 2 Discoloration Care Serum is a high-potency serum with anti-melanin active ingredients like Alpha Arbutin, Tranexamic Acid, and Niacinamide, effectively addressing every stage of hyperpigmentation while soothing irritation and providing hydration.
Benefits
- Improves the appearance of hyperpigmentation and discoloration
- Evens skin tone and brightens dark spots
Formulated Without
- Parabens
- Sulfates
- Phthalates
Key Ingredients
- Alpha-arbutin: decrease pigmentation in age spots, acne scars, and post-acne redness
- Tranexamic Acid: Improves brightness and treats discoloration
- Niacinamide: Smooths skin texture and treats fine lines
Item 2632053
Apply a proper amount evenly on the face, avoiding the eye area.
Water / Aqua / Eau, Propanediol, Glycerin, Niacinamide, Tranexamic Acid, Acetyl Glucosamine, Alpha-Arbutin, 1,2-Hexanediol, Dimethicone, Dimethyl Isosorbide, Diethoxyethyl Succinate, Butylene Glycol, Citric Acid, Alcohol, Sodium Polyacryloyldimethyl Taurate, Hydrogenated Lecithin, Xanthan Gum, Sodium Metabisulfite, Disodium Edta, Ethylhexylglycerin, Dextrin, Theobroma Cacao (Cocoa) Extract, Sodium Citrate, Madecassoside, Sodium Methyl Stearoyl Taurate, Sodium Hyaluronate, Tocopherol, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate Crosspolymer, Hyaluronic Acid, Ferulic Acid, Glycyrrhiza Glabra (Licorice) Root Extract, Panthenol, Arginine, Methyl Trimethicone, Allantoin, Glutathione, Sodium Acetylated Hyaluronate.
This brand is excluded from most Ulta Beauty coupons.
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Reviews
Review Snapshot
by PowerReviews
Ratings Distribution
Most Helpful Positive Review
Incredible Serum for Hyperpigmentation
I cannot believe how much I love this Serum. It worked absolute wonders on my face in just one week, and it continues to work it's magic. If you have any sort of hyperpigmentation, acne scarring, sunspots, or dark spots from waxing, you need to add the CosRx Alpha-Arbutin 2 Discoloration Care Serum ...
Most Helpful Critical Review
Caused new breakouts
I wanted to love this, I really did! I have done research on tranexamic acid and was stoked to find this serum at Ulta for 25 dollars. I have post acne scars and I saw this was highly rated and the price wasn't bad. I used it twice a day as directed and I started noticing new breakouts. I hoped it w...
1197 results
Does not work!
I purchased three bottles while they were on sale. I have used it consistently for over a month with no change or results :(
Great serum at great price!
I read reviews for this product online and decided to try it. It's early so I'm not seeing a lot of discoloration fading yet but I like the product. It doesn't cause any breakouts or irritation. Hopefully, with time I will see great results.
It Works!
This serum is said to fade blemish scars, fade pigmentation concerns, balances skin tone, and improves brightness. It comes in a common glass dropper style serum bottle. So I've only been using for 1 week and so far these are my thoughts. It has no fragrance, is super lightweight, and absorbs really nice into the skin. I've added it to my skincare routine to help with some surgical scarring I had. I have only been applying 1 layer, but you can do 2-3 for intensive care. I have not got any breakouts from using this at all. In only 1 week I can see my surgical scarring definitely lighter in color. My skin also does look brighter as a whole! I can only imagine how great the results will be with continued use. But so far I'm loving this!





New Discoloration Serum
Reviewed at

I found the COSRX Alpha-Arbutin 2 serum to be a reasonable serum to add to my skincare routine. I suffer from acne, and especially after summer, sun spots on my face. In the past, I have used vitamin C serums to help address discoloration, dark spots and age spots. After using the COSRX Alpha Arbutin serum, I would say that I prefer this over the vitamin c serums. The serum itself is thin and odorless. It is easy to apply and absorbs quickly, making little work of adding it to any skincare routine. Some of the benefits that I noticed was post acne mark lightening. I tend to get hormonal acne, and the spots can sometimes last for 4 weeks. I've noticed since using this serum that they are gone within a few days. I would definitely recommend this to anyone looking to shorten the life of discoloration, especially those due to acne.
Great Product
Reviewed at

I love this serum. I have very sensitive skin and this product doesn't cause me any breakouts or reactions, that is huge to me. There are age spots, sun spots and acne scars on my face, I do feel like this product is fading my dark spots. I also have combination skin and this serum is helping hydrate my skin where needed without clogging my pores. This serum is now a part of my daily routine and I plan to continue using it. I would definitely suggest trying this serum!
Questions
Q&A
Showing 5 out of 11 Questions
- Q
Should this be used morning or night?
- Asked by Jenn
- Official Answer By COSRX - Brand EngageThis serum can be used both in the morning and at night. However, if you choose to use it in the morning, we recommend applying a broad-spectrum sunscreen afterward.Was this answer helpful to you
- Q
Can I use this with the blemish pore pads?
- Asked by Faith
- Official Answer By COSRX - Brand EngageYes, you can use the Alpha-Arbutin 2% Discoloration Care Serum along with the One Step Original Blemish Pore Clear Pads. We recommend using the blemish pore pads first to help exfoliate and clear your pores. After that, you can apply the Alpha-Arbutin serum to target discoloration and improve your skin tone. Just be sure to follow up with a moisturizer and sunscreen during the day for the best results. If you have sensitive skin, we suggest doing a patch test before using both products together to ensure compatibility.Was this answer helpful to you
- Q
Should i use this before or after my CORSX 6 peptide skin booster?
- Asked by T
- Official Answer By COSRX - Brand EngageFor optimal results, we recommend applying the Alpha-Arbutin Serum after the 6 Peptide Skin Booster. Since the peptide serum is designed as the first-step booster to enhance the affects of subsequent serums and ampoules, it should be applied first, followed by the Alpha-Arbutin Serum.Was this answer helpful to you
- Q
Can ise this with either Zero pore pad toner or Retinal shot?
- Asked by Cher
- Official Answer By COSRX - Brand EngagePlease understand that we cannot provide guidance on using our product in combination with other brands. However, we do not recommend mixing it with high-potency products such as retinol, vitamin C. As always, it's best to perform a patch test before applying new products to your entire face.Was this answer helpful to you
- Q
Can you use this along with a retinol?
- Asked by Lilfitter
- Official Answer By COSRX - Brand EngageWe don't recommend using this serum along with retinol. Please use them at different times of the day, for example, applying the Alpha-Arbutin serum in the morning and retinol in the evening. If you have sensitive skin, consider doing a patch test or consulting with a dermatologist before using the product.Was this answer helpful to you