SKU: 99989104510

COSRX The AHA 2 BHA 2 Blemish Treatment Serum

Sale price$2475.00 Regular price$2750.00
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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12

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Description

COSRX The AHA 2 BHA 2 Blemish Treatment SerumCOSRX The AHA 2 BHA 2 Blemish Treatment Serum is a dual exfoliant serum that combines the power of alpha hydroxy acids and beta hydroxy acids to target blemishes, congested pores, and uneven skin texture at the same time. At 2% concentration each, both acids are balanced to deliver effective exfoliation without the irritation and peeling that higher concentrations can cause, making this serum an excellent choice for those new to acids or with

COSRX The AHA 2 BHA 2 Blemish Treatment Serum is a dual-exfoliant serum that combines the power of alpha-hydroxy acids and beta-hydroxy acids to target blemishes, congested pores, and uneven skin texture at the same time. At 2% concentration each, both acids are balanced to deliver effective exfoliation without the irritation and peeling that higher concentrations can cause, making this serum an excellent choice for those new to acids or with sensitive skin. The AHA component works on the surface to dissolve dead skin cells and improve overall texture and radiance, while the BHA penetrates deeper into the pore lining to dissolve the oil and debris that causes blackheads and breakouts. Together, they create a clarifying, brightening effect that makes skin look clearer and more refined after consistent use. The COSRX The AHA 2 BHA 2 Blemish Treatment Serum also contains soothing ingredients to calm inflammation and reduce redness around active breakouts, making it a well-rounded treatment serum for anyone dealing with acne-prone, oily, or congested skin.

What's special about COSRX The AHA 2 BHA 2 Blemish Treatment Serum:

  • Dual-acid formula combining AHA for surface exfoliation and BHA for deep pore cleansing
  • Balanced 2% AHA and 2% BHA concentration that exfoliates effectively without causing irritation
  • Targets blackheads, whiteheads, and active breakouts while improving overall skin texture
  • Brightening effect that fades post-acne marks and hyperpigmentation over time
  • Gentle enough for daily use and suitable for acne-prone, oily, and combination skin types

Other Details:

COSRX The AHA 2 BHA 2 Blemish Treatment Serum is available at TheSkinFit in the following:

  • Skin Concerns: Acne, Blackheads, Open Pores, Uneven Skin Texture, Post-Acne Marks
  • Active Ingredients: AHA (Glycolic Acid) 2%, BHA (Salicylic Acid) 2%, Willow Bark Water
  • Skin Type: Oily, Combination, Acne-Prone Skin

How to Use COSRX The AHA 2 BHA 2 Blemish Treatment Serum:

  1. Use in the evening after cleansing and toning.
  2. Apply a few drops to the entire face, avoiding the eye area.
  3. Allow to absorb for a few minutes before layering your moisturiser.
  4. Always apply SPF in the morning when using AHA and BHA products.

Pro Tip: Start by using this serum three times a week and gradually increase frequency as your skin builds tolerance to the acids.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 99989104510

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4.5 ★★★★★
Based on 22 reviews
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Verified Purchase
Jennifer L Cremata
New York, US
★★★★★ 5
Very healing
I bought this for face but had also heard that this can be used for other skin issues. Yesterday, I cut my index finger with a label remover (basically a razor blade). Once I stopped the bleeding, I kept it clean and covered for a bit. Before bed, I decided to put a dab of this on my cut, when I woke up this morning, it's like a miracle! It barely hurts and looks quite healed!
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Reviewed in the United States on May 20, 2026
D
Verified Purchase
DWF
Waukegan, US
★★★★★ 5
It works... very well... for me. VERY WELL.
I typically detest American companies as many of the products contain both harmful and helpful ingredients at the same time. So far, Prequel has EXCEEDED my expectations. PROS: It works for my skin. EWG gives good scores to Prequel also. Skin looks great afterwards. No scent. Lasts for hours with a healthy skin tone. You don't have to use a lot to cover an area (see below). CONS: Slightly greasy when applied so it not a lightweight cream. Small tube (see below). Pricey. You don't have to use a lot. I find that due to its slightly greasy nature, you can use much less to cover a greater area. Afterwards the greasiness disappears, leaving plump, healthy feeling skin texture. As with any skincare product, your skin may react differently. I have tried major Western brands which worsened my skin (Cereva for instance) before switching to Korean & Japanese products (far superior). Prequel is now the only Western brand I will use on a regular basis, to include their bar of soap (superior to my regular Korean brand).
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Reviewed in the United States on September 14, 2025
U
Verified Purchase
UrbanUtah
Charlottesville, US
★★★★★ 5
Great dry spot treatment!
Worked wonders on winter dry patches on my cheeks and sides of mouth. I’m a somewhat new Prequel product user. I follow the creator on YouTube and love her skincare videos. I have tried a few products so far and have been happy with the results. I just ordered the foot repair ointment for my husband as well. I think this brand is a great value for the money. I have not had any bad reactions so far and I have VERY sensitive skin. This ointment is lightweight and melts into my skin well and the next morning my dry spots were literally invisible. It’s fragrance free, I did not notice any scent at all, which is importance to me.
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Reviewed in the United States on January 3, 2026
G
Verified Purchase
gina
Lowell, US
★★★★★ 4
Prequel is always great
Very soothing and calming for skin. Tube lasted a long time. I have sensitive skin and often have reactions but did great with this.
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Reviewed in the United States on March 14, 2026
K
Verified Purchase
Kitkat
Lexington, US
★★★★★ 5
This is a barrier cream?
I also have very oily skin, so normally I stay away from anything that says barrier or balm. I push skin a lot lol...with max strength tretinoin, glycolic acids, salicylic acids, vitamin C... so there are times when I just need max help from a richer product bc sometimes I take it too far. LRP Cicaplast has been a staple and has saved me many a times. I bought this bc of the high percentage of ectoin, 5%, and it was so reasonably priced. When I squeezed the tube, I was really worried, it was thicker looking than the Cicaplast. However, when I spread it out, it was SO light and a tiny amount --barely a pea size, was enough to coat my face. It did not feel heavy. Even with my oily skin, I think I could wear this everyday. As an experiment, I applied any excess on one side of my hand, as I'm right handed, I would apply it on my left hand. I've had this about a week, and right now after doing the dishes, and washing my hands multiple times without any hand cream on it, my right hand is definitely drier than my left hand. My left hand also looks less red and more calm. This formula is 5 stars for both the effectiveness and the elegant formula. It may yet replace my LRP Cicaplast...we'll see!
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Reviewed in the United States on November 6, 2025

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