Hero shot of COSRX The Retinol 0.5 Oil with molecular graphics; 0.5% pure stabilized retinol blended with Super Vitamin E + squalane for firmness, smoothness, and youthful glow; ideal for advanced retinol users seeking anti-aging and acne-compatible retinol care.
Minimalist display of COSRX The Retinol 0.5 Oil bottle labeled 0.5% pure retinol; high-strength Korean retinol formula with vitamin E and squalane to improve fine lines and texture while protecting skin barrier from dryness and irritation.
Clinical results graphic showing COSRX The Retinol 0.5 Oil visibly improves elasticity, wrinkles, and pores within 14 days; proven anti-aging booster for smoother, firmer skin; validated by Dermacosmetic Skin Science Laboratory Co., Ltd.
Clinical trial comparison for COSRX The Retinol 0.5 Oil showing wrinkle reduction after 4 weeks: forehead −22.02%, nasolabial −18.40%, eye area −17.68%; substantiated evidence of anti-aging efficacy in fine line and texture improvement.
Woman applying COSRX The Retinol 0.5 Oil with dropper, text overlay indicates 16% increase in skin elasticity after 4 weeks; clinical proof of firmer, glowing skin; gentle enough for retinol-acclimated acne-prone users.
Close-up of radiant woman showing forehead, eye, and mouth area improvement after 4 weeks using COSRX The Retinol 0.5 Oil; intensive treatment that reduces wrinkles and aging signs while maintaining skin smoothness and barrier strength.
Assortment of COSRX The Retinol 0.5 Oil bottles in lab glass dishes; 100% of participants reported improved elasticity, wrinkle reduction, and nourishment within 4 weeks, according to clinical testing on 20 females aged 31–65.
Key ingredient breakdown of COSRX The Retinol 0.5 Oil highlighting pure retinol (Vitamin A) for collagen renewal, squalane for moisture protection, and tocotrienol (super vitamin E) to reduce visible aging and prevent skin irritation.
Usage instruction chart for COSRX The Retinol 0.5 Oil explaining adaptation period; start 2–3 times a week at night and progress to alternate nights by week 3; ensures skin tolerance and minimizes retinol irritation risks.
Comparison of COSRX retinol line from beginner to advanced: The Retinol 0.1 Cream, 0.3 Cream, and 0.5 Oil; recommended for experienced users targeting deep wrinkles, anti-aging, and elasticity improvement within a K-beauty skincare routine.
Close-up of a dropper dispensing COSRX The Retinol 0.5 Oil above a fingertip, with instructional text: ‘Apply 1 to 2 drops to hand and tap with fingertips from inside out, let it absorb’; visual guide for safe and controlled retinol application to minimize irritation and ensure even absorption for wrinkle repair and anti-aging care.
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Hero shot of COSRX The Retinol 0.5 Oil with molecular graphics; 0.5% pure stabilized retinol blended with Super Vitamin E + squalane for firmness, smoothness, and youthful glow; ideal for advanced retinol users seeking anti-aging and acne-compatible retinol care.
Minimalist display of COSRX The Retinol 0.5 Oil bottle labeled 0.5% pure retinol; high-strength Korean retinol formula with vitamin E and squalane to improve fine lines and texture while protecting skin barrier from dryness and irritation.
Clinical results graphic showing COSRX The Retinol 0.5 Oil visibly improves elasticity, wrinkles, and pores within 14 days; proven anti-aging booster for smoother, firmer skin; validated by Dermacosmetic Skin Science Laboratory Co., Ltd.
Clinical trial comparison for COSRX The Retinol 0.5 Oil showing wrinkle reduction after 4 weeks: forehead −22.02%, nasolabial −18.40%, eye area −17.68%; substantiated evidence of anti-aging efficacy in fine line and texture improvement.
Woman applying COSRX The Retinol 0.5 Oil with dropper, text overlay indicates 16% increase in skin elasticity after 4 weeks; clinical proof of firmer, glowing skin; gentle enough for retinol-acclimated acne-prone users.
Close-up of radiant woman showing forehead, eye, and mouth area improvement after 4 weeks using COSRX The Retinol 0.5 Oil; intensive treatment that reduces wrinkles and aging signs while maintaining skin smoothness and barrier strength.
Assortment of COSRX The Retinol 0.5 Oil bottles in lab glass dishes; 100% of participants reported improved elasticity, wrinkle reduction, and nourishment within 4 weeks, according to clinical testing on 20 females aged 31–65.
Key ingredient breakdown of COSRX The Retinol 0.5 Oil highlighting pure retinol (Vitamin A) for collagen renewal, squalane for moisture protection, and tocotrienol (super vitamin E) to reduce visible aging and prevent skin irritation.
Usage instruction chart for COSRX The Retinol 0.5 Oil explaining adaptation period; start 2–3 times a week at night and progress to alternate nights by week 3; ensures skin tolerance and minimizes retinol irritation risks.
Comparison of COSRX retinol line from beginner to advanced: The Retinol 0.1 Cream, 0.3 Cream, and 0.5 Oil; recommended for experienced users targeting deep wrinkles, anti-aging, and elasticity improvement within a K-beauty skincare routine.
Close-up of a dropper dispensing COSRX The Retinol 0.5 Oil above a fingertip, with instructional text: ‘Apply 1 to 2 drops to hand and tap with fingertips from inside out, let it absorb’; visual guide for safe and controlled retinol application to minimize irritation and ensure even absorption for wrinkle repair and anti-aging care.
Instructional video showing a woman applying COSRX The Retinol 0.5 Oil during the week 1–2 adjustment period; a dropper dispenses serum into her palm before she gently taps it onto her cheeks. Demonstrates safe beginner-to-intermediate retinol use, applying 1–2 drops at night, 2–3 times per week to minimize irritation while supporting wrinkle reduction, smoother texture, and improved elasticity.
Instructional video demonstrating the Week 3 retinol adjustment phase using COSRX The Retinol 0.5 Oil; a dropper dispenses serum into the palm before the woman applies it evenly across her face. Shows proper technique for using 0.5% pure retinol every other night once tolerance is built, supporting smoother texture, reduced wrinkles, and improved elasticity while maintaining barrier comfort.
Instructional video demonstrating how to apply COSRX The Retinol 0.5 Oil. The woman first dispenses a small amount of the oil into her palm, then evenly applies it across her face, neck, and targeted areas while avoiding sensitive zones like the eyes and lips. The final frames highlight night-time use recommendations and the importance of wearing sunscreen during the day when using 0.5% pure retinol, supporting safe anti-aging routines that improve texture, wrinkles, and elasticity.

The Retinol 0.5 Oil

Advanced Retinol Oil for Youthful-looking Skin

COSRX’s The Retinol 0.5 Oil harnesses 0.5% pure retinol in a nourishing oil base with squalane and vitamin E to target deep wrinkles, uneven texture, and skin firmness loss. Suitable for all skin types, especially those acclimated to retinol, it delivers visible smoothing, strengthened resilience, and a luminous complexion over time.

Size : 20ml / 0.67fl. Oz

$27.00
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Concerns & Benefits
Concern Suitable Key Benefit Key Ingredient
Post-breakout marks Yes Smooths and firms skin Retinol 0.5%
Loss of elasticity Yes Helps rebound & bounce Retinol + Squalane
Uneven tone & rough skin Yes Refines texture Retinol + Vitamin E
Enlarged pores Yes Minimizes appearance Retinol + Squalane
How to Use
  1. Apply a small amount to clean, dry skin at night.
  2. Put one or two drops on your hand.
  3. Tap with it your fingers and gently massage into face, avoiding eyes and lips.
  4. Follow with moisturizer.
Initially use 2–3 times a week, gradually increasing frequency to once a day, after 3 weeks, after building tolerance. Apply sunscreen during daytime.

    5. *Patch test recommended before facial use.
Product Fact Pack
Info Details
Volume 20mL
Key Ingredients 0.5% Pure retinol, Super Vitamin E(Tocotrienol), Squalane(Plant-Derived)
Clinically Proven Yes (Sensitive skin irritation test, Primary skin irritation test)
Expiration 36 months from manufacturing or 3 months after opening
Allergens Hypoallergenic tested
Why COSRX?
Feature Retinol 0.5 Oil Typical Retinol Formula
Retinol concentration 0.5% pure, stabilized retinol Lower (e.g., 0.2%–0.3%)
Target concerns/results Deep wrinkles, loss of elasticity, rough texture, enlarged pores Target fewer or shallower concerns
Texture & base Silky oil formula with squalane and super-vitamin E Often cream or serum base with fewer supportive oils
Suitable skin types/usage Best for users accustomed to retinol; intermediate level care May be beginner-level or less potent

Clinically proven by the Dermacosmetic Skin Science Laboratory Co., Ltd to improve wrinkles, elasticity, and skin texture within 4 weeks of use.

Ingredient List
Squalane, Glycine Soja (Soybean) Oil, Di-C12-13 Alkyl Malate, Retinol(0.5%), Caprylic/Capric Triglyceride, BHT, Tocotrienols, Tocopherol, Elaeis Guineensis (Palm) Oil, Hydroxymethoxyphenyl Decanone
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More details Right
FOR RADIANT, YOUTHFUL-LOOKING GLOW

0.5% Pure Retinol

The perfect retinol for experienced users

Firming. Smoothing. Radiance. Renewal. YOUTHFUL-LOOKING.  
Product image of COSRX The Retinol 0.5 Oil with open dropper releasing a golden drop; 0.5% stabilized pure retinol combined with vitamin E and squalane to boost firmness and reduce aging signs while maintaining hydration for acne-prone or retinol-tolerant skin.
Close-up of smiling woman with radiant skin highlighting forehead, eye area, and mouth area improvements after using COSRX The Retinol 0.5 Oil; visual reference to retinol’s targeted action on wrinkles, elasticity, and fine lines for smoother, youthful-looking skin.
#0.5%PURERETINOL #DEEPWRINKLECARE

More Elastic, PLUMP-looking Skin

Visible results in just 4 weeks.

-22.02%

reduction in forehead wrinkles

-18.40%

reduction in nasolabial folds

-17.68%

reduction in eye wrinkles

All clinical studies were conducted by Dermacosmetic Skin Science Laboratory Co., Ltd. from Aug 12 to Sep 23, 2022. on 20 subjects.

WHO IS IT FOR?

Perfect for those already familiar with retinol and ready to step up to a more potent formula for visible anti-aging care.

Ideal for anyone noticing sagging or firmness loss who wants to restore bounce and resilience.

Recommended for those seeking targeted care to smooth forehead, eye, and smile lines with clinically proven results.

Smiling woman holding COSRX The Retinol 0.5 Oil, showcasing visibly smooth and glowing skin; Korean anti-aging retinol oil with 0.5% pure retinol, Super Vitamin E, and squalane to boost elasticity and firmness while minimizing irritation; clinically proven to reduce forehead wrinkles by 22.02% in 4 weeks. Model with radiant, even-toned skin holding COSRX The Retinol 0.5 Oil close to her face; 0.5% pure stabilized retinol visibly improves wrinkles, fine lines, and skin texture while strengthening the moisture barrier; clinically proven to reduce pore volume by 48.87%, revealing smoother, refined skin with continued use. Woman in a silk top applying COSRX The Retinol 0.5 Oil to her cheek with a dropper during a night-time skincare routine; illustrates safe retinol application for intermediate users, promoting wrinkle reduction and elasticity improvement; clinically shown to enhance external skin elasticity by 16.91% after 4 weeks.

KEY INGREDIENTS

Formulated with pure vitamin A to help reduce appearance of fine lines and firm skin

0.5% Pure Retinol

Calms redness and protects the skin’s barrier

Squalane

helps reduce signs of aging

Super Vitamin E (Tocotrienol)

Your SLOW-AGING
Routine Guide

Step by step routine for youthful & healthy skin

Start with Advanced Snail Mucin Gel Cleanser to gently remove impurities.

Step 1 - Cleanse

Apply The 6 Peptide Skin Booster Serum to energize and firm skin, boosting absorption of the next step.

Step 2 - Boost

Follow with The Retinol 0.5 Oil at night to smooth wrinkles and improve elasticity while you sleep.

Step 3 - Smoothen

Follow with The Ceramide Skin Barrier Moisturizer to lock in hydration and strengthen the skin barrier.

Step 4 - Moisturize

Finish with Vitamin E Vitalizing Sunscreen SPF 50+ for non sticky protection against UV damage without white cast.

Step 5 - Don’t forget to

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FAQ
What makes COSRX The Retinol 0.5 Oil different from other retinol products?

COSRX The Retinol 0.5 Oil uses 0.5% stabilized pure retinol, not derivatives, combined with Super Vitamin E (tocotrienol) and squalane for improved elasticity and hydration. This formula delivers high-strength care for firmer, youthful-looking skin while remaining barrier-safe and suitable for acne-prone or sensitive skin types that have built retinol tolerance.

How long does it take to see visible results from COSRX The Retinol 0.5 Oil?

Clinical studies show visible skin improvements after 2 to 4 weeks of use: pores improved after 2 weeks, and wrinkles after 4 weeks. Notably, pore volume and area were reduced by over 45%, forehead wrinkles decreased by 22%, and eye area lines improved by 17%, based on testing by the Dermacosmetic Skin Science Laboratory.

Is cosrx the retinol 0.5 oil suitable for acne-prone skin?

Yes, it’s suitable for acne-prone skin. The formula includes squalane and vitamin E to help reduce dryness and irritation while retinol works on the appearance of clogged pores and uneven texture.

How should I introduce COSRX The Retinol 0.5 Oil into my routine safely?

Use 2–3 times a week at night for the first 2 weeks, applying 1–2 drops only to areas of concern (or mix with your moisturizer for a gentler start). From Week 3, you may use it every other night and spread a thin layer over the entire face if your skin feels comfortable. Always follow with sunscreen during the day.

What benefits can I expect from consistent use of COSRX The Retinol 0.5 Oil?

With continued use, the skin becomes firmer, smoother, and more radiant. The 0.5% pure retinol boosts collagen production, softens fine lines, and improves uneven tone while vitamin E and squalane strengthen the skin barrier.

Can COSRX The Retinol 0.5 Oil be layered with other active ingredients?

It can be used with barrier-supporting or hydrating products, but avoid combining with exfoliating acids (AHAs, BHAs) or high-concentration vitamin C in the same routine. For best results, use retinol at night and pair with SPF during the day to protect renewed skin.

Who should use COSRX The Retinol 0.5 Oil - beginners or advanced users?

This oil is designed for intermediate to experienced retinol users who are ready for a higher strength (0.5%) formula. Beginners should start with COSRX The Retinol 0.1 Cream or 0.3 Cream to build tolerance before advancing to this concentrated oil.

Overall rating: 4.5384617 / 5 from 767 reviews.

AI Generated Review Summary

COSRX's The Retinol 0.5 Oil is praised for its ability to soften and smooth skin, reduce fine lines, and enhance radiance. While many users appreciate its lightweight and quick absorption, some noted a greasy feeling and varied results in skin improvement.

Summary topics

  • Skin Texture: 37%
  • Fine Lines Reduction: 8%
  • Retinol Effectiveness: 24%
  • Skin Feel: 20%
  • Skin Appearance: 8%

Review topics: ["size","absorbs","results","issues","ingredients","irritation","improvement","scent","wrinkles","quality","fragrance","price","spots","benefits","feels","shipping","texture","packaging","value","works","formula","skin","looks","use","amount","glow","oil","lines","bottle","face"].

Review highlights

  • "Instantly I noticed my skin felt more supple and had a radiant glow without looking too oily." — skincarebyjennac
  • "The oil does not leave a sticky or thick residue behind-it leaves the skin feeling very soft and smooth." — Jessica
  • "It has no discernible scent and makes your skin feel supple upon application." — Shelby

Reviews

Title: Great results, just needs patience

"This is my first retinol and I appreciate how COSRX made it beginner-friendly. The oil texture is lightweight and helps buffer the retinol, so I had minimal dryness. Took about a month to see real improvement in my skin tone and firmness. Only reason for 4 stars is the dropper bottle - it can get a bit messy. Overall solid product for the price and perfect if you’re new to retinol."

— Phanchita P. (4/5)

I like the gentle way

"I like the gentle way of that retinol working. My skin has never had irritation during using that product. I use it twice a week, in the morning use VitaminE Sunscreen and I like the effect. I have oily skin with acne, post-acne dark spots. As it’s written in the instruction, I keep the bottle in the fridge."

— Marina T. (5/5)

Still getting used to it,

"Still getting used to it, but seeing some results. Just started it regularly in my skincare routine and was scared to upgrade to this from my other retinol as it might irritate my skin, but this retinol oil is super hydrating and all I need on my retinol night is this, eye serum and all in one cream and I feel hydrated all night."

— Molly P. (5/5)

I love this retinol my

"I love this retinol my skin feels very smooth !"

— Helene C. (5/5)

I absolutely love this stuff!

"I absolutely love this stuff! I use it with the regular retinol as an added layer. Love the way it makes my skin look and feel!!"

— Paigen J. (5/5)

I love the product, it's

"I love the product, it's very good."

— Alexandra P. (5/5)

I’ve tried several retinol products

"I’ve tried several retinol products before, including Kiehl’s and Geek & Gorgeous, so my skin was already used to retinol when I started this one. After taking the test on the website, I felt confident starting directly with the 0. 5 strength. I’ve been combining it with the booster serum, and the results have honestly surprised me. Within just one week of use, I could already see a visible improvement in my skin’s texture and overall glow. What made it even more impressive is that my family members noticed the difference too, which is a first for me! So far, I’m really happy with the results and excited to see how it continues to improve my skin over time. When traveling, i used a glass dropper bottle to cary it."

— Cigdem B. (5/5)

Great quality. I can feel

"Great quality. I can feel my skin healing."

— Kimberly R. (4/5)

Mild retinol. No issues using.

"Mild retinol. No issues using."

— Sandra V. (5/5)

Great result

"I love this product, it makes my skin so plump and soft next day. This product has immediately result."

— Rieko H. (5/5)

Q&A