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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
Cosrx Serum
Reviewed at

Since using this product 6 days ago. It looks like it is starting to work slowly but surely. Has little to no smell and it dries pretty fast. I used about 4 drops in total under each eye, over the top of my nose and close to the end of my eyebrows.
EXCELLENT PRODUCT!
Reviewed at

THIS PRODUCT WAS REALLY GREAT! IT PROVIDED RESULTS AFTER JUST A FEW USES AND GAVE ME SUCH A SMOOTH TEXTURE AND CUT DOWN ON DARK SPOTS. I HOPE WITH CONTINUED USE THAT IT WILL IMPROVE TO THE BEST RESULTS!
Dark Spots & Acne Scars Be Gone!
Reviewed at

The Alpha-Arbutin 2 Discoloration Care Serum is a product that everyone needs to have in their skincare routine. As someone who has suffered with acne scars from cystic acne as a young adult, and then having quite a few dark spots from being in the sun, this product has built my confidence back up! Niacinamide is an ingredient that I have used in the past and with the addition of Tranexamic Acid and NAG, the serum left my skin with such a beautiful glow!
Pretty sure it's working
Reviewed at

I'm not sure that a one week trial period was enough time to really see results with this serum. I don't particularly see a significant change like I had hoped. But it did seem like when I first started using it, that it was breaking up the dark spot into smaller pieces if that makes sense. I think it's a bit lighter after a week. I would like to try it a bit longer to really see results. But it does seem promising and I'm going to continue to use it and see how it does. Serum does leave a bit of a sticky residue but I don't mind it. This brand has a really good reputation, so I have high hopes for this serum. I will update once I've used it a bit longer. I think it's lightened a scar I had from a pimple that you can see near the top of my right eyebrow. It appears to be a lot less red, so it leads me to believe that this serum does work. Look for yourself at my before and after and decide. I think it's lightened. So glad I had the opportunity to test it! Thank you!
Fast acting serum
Reviewed at

Cosrx discoloration serum is lightweight and effective. I used at night time everyday. I can see Result in 10 days. My dark spots faded away. Lightened my skin tone.
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