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COSRX Retinol 0.5 Oil, Anti-aging Serum with 0.5% Retinoid Treatment for Face, Reduce Wrinkles, Fine Lines, & Signs of Aging, Gentle Skincare for Day & Night, Not Tested on Animals, Korean Skincare

  • Based on 2,725 reviews
Condition: New
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$21.50 Why this price?
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Availability: Only 10 left in stock, order soon!
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Arrives Monday, Nov 3
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Features

  • Retinol 0.5% Oil: Retinol helps reduce signs of aging such as fine lines and wrinkles to achieve smoother, firmer, and more youthful-looking skin. It helps renew and resuface the skin and leaves the face glowing with radiance.
  • Dermatological Ingredients: Retinol is a form of active and pure Vitamin A that helps improves wrinkles and firm skin. 91% Squalane protects the skin's barrier. Super Vitamin E (Tocotrienol) helps fight signs of aging.
  • How to Use: Apply 1-2 drops as the last step of your nighttime skincare routine. *Perform a patch test on the body before using on the face.In the first two weeks of using the product, it is recommended to use 3 times per week at night. After the third week, use every other day for maximum results.
  • COSRX Standards:COSRX Standards: All COSRX products are formulated with skin-friendly ingredients that alleviate irritated skin. Hypoallergenic, Dermatologist tested, Animal Testing-FREE, Parabens-FREE, Sulfates-FREE, Phthalates-FREE

Brand: COSRX


Item Volume: 0.67 Fluid Ounces


Item dimensions L x W x H: 1.97 x 3.15 x 3.54 inches


Age Range (Description): Adult


Special Feature: Travel Size


Product Dimensions ‏ : ‎ 1.97 x 3.15 x 3.54 inches; 4.59 ounces


Item model number ‏ : ‎ CR078


Manufacturer ‏ : ‎ Cosrx


Best Sellers Rank: #8,225 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #18 in Facial Oils #209 in Face Moisturizers


#18 in Facial Oils:


#209 in Face Moisturizers:


Customer Reviews: 4.5 4.5 out of 5 stars 2,725 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 3

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Nondrying nor irritating
I just ordered my second round of this night serum. I have dry, mature skin and because of the oil included in the serum it doesn’t dry my skin as much as a cream might. I think that this serum has lessened my fine lines and even made my skin softer. I add a little each night to the top of my hands and it also works well there without over drying or causing irritation. ... show more
Reviewed in the United States on September 20, 2025 by Leslie

  • It’s oily, but…
It’s a fantastic product. Compared to other retinols on the market, this has only one questionable ingredient that has the potential to be an endocrine disruptor, but more science research is needed on the matter. This is meant to be the last step in your skincare routine without a moisturizer. I tried three different moisturizers after applying this retinol, but they all pilled. I use the retinol oil as my last step, and my skin feels hydrated, so there was no need for me to apply a moisturizer afterwards. I love that this retinol is powerful but also gentle on my skin. I experienced drying the first time I used this, but I also used it three days in a row. I learned afterward that you need to start slow, and eventually my skin barrier worked itself out. I apply this a few hours before bed so it has time to absorb into my skin. I also apply the COSRX Snail Mucin 96 essence before hand. If you have never used retinol, I would suggest starting with their 0.1% cream and slowly building yourself up to this product. I didn’t experience any skin purging like others have. To avoid or lessen skin purging, I’d recommend using a gentle BHA/AHA cleanser the morning before and after your retinol treatment. Adding this simple step cleared up my skin when I first started using retinol. It expedited the purging process. ... show more
Reviewed in the United States on April 18, 2024 by Allen

  • No sting
This is a really nice, moisturizing retinol with the vitamin E oil it has in it and it doesn't sing at all.
Reviewed in the United States on September 5, 2025 by Emily

  • Love it
Super moisturizing because it also contains squalene. It’s a great value for the money. I only use it at night because it is a bit oily. Within 5-7 it has absorbed. It comes in a dark glass bottle as well with a dropper which I love. I quality is amazing although I do wish they offered a stronger formula for those of us who is use to retinol. There is no smell which I love. Extremely easy to use. There’s not been a lot of peeling at all but it maybe because I need stronger. As far as results lasting results it has cleared my skin up within one week. It smooths moisturizes & plumps my skin nicely. Four stars because I need a stronger formula PLEASE COSRX ... show more
Reviewed in the United States on May 18, 2024 by NikNak

  • This really made my skin better.
A Korean friend with great skin recommended this to me. It has a high niacinamide content and is supposed to lighten dark spots, and I feel like my face is getting clearer. It’s fragrance-free and colorless, so it feels gentle. I’ll definitely keep using it.
Reviewed in the United States on August 29, 2025 by qocn19

  • My skin feels smoother and looks more even!
I’ve been using this for a couple weeks and I’m already noticing a difference. My skin feels smoother, more firm, and just overall healthier. It’s not too harsh, especially for a 0.5% retinol, and I love that it has vitamin E and squalane to keep things balanced. Definitely part of my nighttime routine now. ... show more
Reviewed in the United States on July 22, 2025 by Gustavo Aquino Gustavo Aquino

  • Good, but oily. Works great though. 🤷♀️
Works good, and fine lines go away after use, but...I hate the oily ness of it, I thought i wouldn't mind, but I do, unfortunately. But if you don't mind oilyness then thats fine. Doesn't make skin irritated either, but thats because I've been using a lower level retinol for a while, DON'T USE THIS IF YOU ARE STARTING OUT WITH RETINOL!!! Use the lower percentage ones. Trust. ... show more
Reviewed in the United States on April 7, 2025 by Fari

  • Best retinol serum
Cosrx is my go to brand for skin care and this retinol serum does not disappoint. I put this on at night before bed and I swear I wake up with firm, smooth skin. Love it.
Reviewed in the United States on September 5, 2025 by cairo

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