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Advanced retinal ingredients details
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Two skincare serums with labels for 'Starter Retinol Serum' and 'Advanced Retinol Serum', and text describing their uses.
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Advanced 0.2% Retinal Serum Duo

Clinically proven to work 11x faster than standard retinol*** - see visible anti-ageing results in just 1 week*

4.6
Rated 4.6 out of 5 stars
4.6 Stars (127 Reviews)
€39,90 €42,00 / 15ml Duo

What you get: A high-strength Retinal serum, clinically proven to target all 5 visible signs of ageing, without irritation - smoothing deep wrinkles, fading dark spots, visibly firming and lifting while boosting skin’s luminosity. Perfect for experienced retinoid users ready to upgrade their anti-ageing skincare routine.

Why it worksFormulated with 0.2% encapsulated Retinaldehyde, proven to work 11x faster than standard Retinol***, to accelerate cell turnover, promote collagen production and improve skin elasticity. Enhanced with 2% Sirtalice to visibly lift, tighten and smooth skin in as little as 30 minutes****. Perfect for those seeking the next level beyond standard retinol serums, our retinaldehyde formula requires only one conversion step to active retinoic acid, making it significantly more effective for visible anti-ageing results.

How it feels: Lightweight, hydrating and fast-absorbing. Skin feels instantly nourished, never drying.

When to use: PM only, 2-3 nights a week to start. Increase frequency as your skin builds tolerance. Always follow with moisturiser and use SPF the next morning.


*** G. Siegenthaler et al., Retinol and retinal metabolism, Biochemical Journal, 1990, 268, pp 371-378

**** Clinical data from ingredient study

Suitable for:

  • Experienced retinoid users
  • All skin types

Targets:

  • Deep Wrinkles
  • Dark Spots
  • Loss of firmness
  • Dullness

Awards & Features

Advanced Retinal Technology: Your Upgrade from Standard Retinol

Retinoids are the gold-standard for skin longevity - helping improve the look of wrinkles, dark spots and loss of firmness. This Advanced Retinal Serum is for experienced retinol users who want to level up results, without irritation.

  • Why it’s different: Retinal converts to active retinoic acid in one step, so it works 11x faster than standard retinol***. The formula pairs long-term skin renewal with instant firming.

  • What it does: 0.2% encapsulated retinal smooths wrinkles, refines texture and evens tone over time, while 2% Sirtalice™ delivers visible, surface-level firming in as little as 30 minutes**.

  • The results? Skin looks smoother, firmer, and brighter - from 1 week*

Shipping info

  • Standard EU Tracked Shipping €5.95 (2-5 business days*). FREE on orders over €45**.
  • **The following countries are subject to increased Standard Tracked Shipping rates and increased FREE shipping thresholds.
  • €6.95 - Denmark, Finland, Switzerland, Estonia, Luxembourg. FREE on orders over €45.
  • €8.95 - Spain, Portugal, Greece, Sweden, Croatia, Bulgaria, Romania. FREE on orders over €55.
  • €11.95 - Malta, Cyprus, Iceland, Serbia, North Macedonia, Bosnia & Herzegovina, Monaco. FREE on orders over €65.
  • Express EU Tracked Shipping €11.95 (up to 4 business days*, if ordered before 4pm CET on business days) 
  • *Please note the above shipping timelines are estimates and not guaranteed. Sometimes there may be delays – e.g. carrier delays, logistics, bad weather or things out of our control. Our team can be reached via our contact us page with any further queries you have.  
  • We are currently unable to ship to the following EU countries: Albania, Belarus, Faroe Islands, Georgia, Gibraltar, Kosovo, Liechtenstein, Montenegro, Norway, Republic of Moldova, Reunion, Turkey The Canary Islands or Ukraine 
  • Tariff or duties
  • Orders with EU shipping destinations won't be subject to any tariff or duties, however please note that there are a small number of EU and European territories that still require tariffs and duties that will need to be covered by the customer.
  • Find out more about shipping here.

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Have you tried?

This product

Advanced 0.2% Retinal Serum Duo

Advanced 0.2% Retinal Serum Duo

  • • Perfect for experienced retinoid users ready to upgrade their anti-ageing skincare routine
  • • Clinically proven to target all 5 visible signs of ageing, without irritation
  • • 0.2% Retinal smooths deep wrinkles, fading dark spots, visibly firming and lifting while boosting skin’s luminosity

or

Have you tried?

Starter Retinol Serum

Starter Retinol Serum

  • • Perfectly suited for first-time Retinol users
  • • 0.01% Retinal helps even skin tone and refine texture
  • • Gently boosts cell turnover

Still not sure?

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  • Before and after showing results of Advanced 0.2% Retinal Serum Duo
  • Before and after showing results of Advanced 0.2% Retinal Serum Duo
  • Before and after showing results of Advanced 0.2% Retinal Serum Duo
  • Before and after showing results of Advanced 0.2% Retinal Serum Duo
4.6
Rated 4.6 out of 5 stars
Based on 127 reviews
Total 5 star reviews: 98 Total 4 star reviews: 18 Total 3 star reviews: 6 Total 2 star reviews: 1 Total 1 star reviews: 4
Reviews Summary
Customers say this serum has a lightweight, smooth texture that absorbs quickly without feeling greasy or sticky. Many find it gentle on sensitive skin while still being effective, with users reporting improved skin texture, brightness, and reduced appearance of fine lines. The yellow tint is frequently mentioned but doesn't stain. Common feedback includes visible results within weeks, including smoother skin, more even tone, and a healthy glow. Some users note the small tube size for the price, while others appreciate the affordable cost compared to similar products. A few customers report no visible improvements after several weeks of use.
127 reviews
  • Maimu P.
    Reviewing
    Advanced 0.2% Retinal Serum
    I recommend this product
    Age Range 35 - 44
    Skin Type Combination
    Skin Concerns Hyperpigmentation, Dull Skin, Fine Lines and Wrinkles
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? 3 months +
    Sensitive Skin Friendly? No
    Rated 4 out of 5 stars
    4 days ago
    Worst packaging ever

    I like it.

    It does exactly what it should do. Improved fine lines and brightness of skin.

    But the tube that it comes in is not good. I thought I was at the end of my first tube and cut it open to scrape the last bits out. Turns out, there's at least three days worth of product left that I can't squeeze out due to the build of the tube.

    Please do better.

    IE Profile picture for INKEY EU
    INKEY EU
    2 days ago

    Hi Maimu, thank you so much for this!
    Your packaging feedback is completely valid though and we're sorry you're losing product because of it. We've made sure to pass this on to the right team - feedback like yours is exactly how we improve.
    In the meantime, the tube-cutting hack is genuinely a great tip — we're glad you found those extra three days worth! 😊

  • Jennifer M.
    Verified Buyer
    Reviewing
    Advanced 0.2% Retinal Serum Duo
    I recommend this product
    Age Range 55 - 64
    Skin Type Sensitive
    Skin Concerns Fine Lines and Wrinkles, Under Eye Circles, Dryness
    Have you purchased an INKEY List product before? No
    How long have you used this product for? 1-3 weeks
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    1 week ago
    It's working on my eye bags

    Good product at a good price. Does the job.

  • Nanna S.
    Verified Buyer
    Reviewing
    Advanced 0.2% Retinal Serum
    I recommend this product
    Age Range 25 - 34
    Skin Type Combination
    Skin Concerns Texture, Fine Lines and Wrinkles, Breakouts, Acne Scars
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? 1 month - 3 months
    Sensitive Skin Friendly? No
    Rated 5 out of 5 stars
    1 week ago
    Loved this against my will

    As the title suggests, I loved this more than I wanted to. I was SO skeptical, but I fear this product is now one I will have to keep buying. After I added this and the Ceramide moisturizer, I genuinely considered cancelling my filler appointment LMAO😭🙏🏻