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Two tubes of The Inkey List Advanced Retinal Serum on a white background
Woman with visible signs of aging, showing product benefits on a white background.
Advertisement for a skincare product showing a close-up of a person's face with text claiming visible wrinkle reduction.
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Before and after comparison of skin treatment showing firmer, more lifted skin.
Before and after comparison of skin radiance with text indicating improvement.
Before and after comparison of a skin treatment on a person's forehead.
Before and after comparison of skin treatment on a person's face, showing reduced blemishes.
Inkey Advanced Retinal Serum bottle held by a hand with text about retinal speed.
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 deliver anti-aging results 11x faster than standard retinol** - with visible improvements in just 1 week*

4.6
Rated 4.6 out of 5 stars
4.6 Stars (173 Reviews)
$41.80 $44.00 / 15ml Duo

What you get: A high-strength Retinal serum, clinically proven to target all 5 visible signs of aging, 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-aging skincare routine.

Why it works: Formulated 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****. Unlike standard retinol serums that require multiple conversion steps, our retinaldehyde formula converts directly to retinoic acid in just one step - delivering faster, more effective anti-aging 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 moisturizer 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: The Next Level Beyond 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*

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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 173 reviews
Reviews Summary
Customers say this serum improves skin texture, reduces fine lines, and enhances brightness and glow. Many report visible results within weeks, with improved pore appearance and more even skin tone. The lightweight formula absorbs quickly without irritation, making it suitable for sensitive skin. Common feedback highlights its gentle nature and effectiveness compared to other brands. Some note the yellow tint and small tube size as drawbacks, while a few mention minimal results or initial adjustment periods. Overall, users appreciate the product's performance and value.
173 reviews
  • Angus G.
    Verified Buyer
    Reviewing
    Advanced 0.2% Retinal Serum
    I recommend this product
    Age Range 55 - 64
    Skin Type Combination
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? 1-3 weeks
    Sensitive Skin Suitability Suitable for my sensitive skin
    Rated 5 out of 5 stars
    Yesterday
    Retinal serum

    Love this serum.

    Easily absorbed and gentle on my skin.

    A nightly essential in my opinion.

  • Mrs s. b.
    Verified Buyer
    Reviewing
    Advanced 0.2% Retinal Serum
    I do not recommend this product
    Age Range 65+
    Skin Type Combination
    Skin Concerns Fine Lines and Wrinkles, Neck Lines
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? 1 month - 3 months
    Sensitive Skin Suitability I don’t have sensitive skin
    Rated 1 out of 5 stars
    5 days ago
    Serum

    Do not seem to get much in tube

    IU Profile picture for INKEY USA
    INKEY USA
    3 minutes ago

    Hi, thank you for flagging this - we're sorry it feels like you're not getting much product in the tube! A couple of quick tips: a pea-sized amount is all you need per use, so Advanced Retinal should last longer than you might expect. And when you get toward the end, cutting the tube open (like another customer cleverly did!) can help you access a few extra days' worth that gets trapped in the design.
    If you still feel the fill level is off, please reach out to our Customer Experience Team at help@theinkeylist.com — they'd be happy to take a look. 💙

  • Mairead k.
    Verified Buyer
    Reviewing
    Advanced 0.2% Retinal Serum
    I recommend this product
    Age Range 55 - 64
    Skin Type Combination
    Skin Concerns Fine Lines and Wrinkles, Texture, Oiliness, Hyperpigmentation, Under Eye Circles
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? 1 month - 3 months
    Sensitive Skin Suitability Suitable for my sensitive skin
    Rated 5 out of 5 stars
    2 weeks ago
    Good value for money

    Easy to use retinol cream. Good value for money. Smells nice and goes on lovely