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Inkey List Advanced Retinal Serum tube on a white background
Woman with visible signs of aging, showing product benefits on a white background.
Yellow skincare product with text on how to layer a routine
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Two skincare serum bottles with text describing starter and advanced retinol serums.
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Advanced 0.05% Retinal Serum

Clinically proven to deliver anti-aging results 11x faster than standard retinol** - with visible improvements in just 1 week*

4.9
Rated 4.9 out of 5 stars
4.9 Stars (53 Reviews)
$22.00 / 15ml

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 0.05% 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

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: 0.05% 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

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  • FREE on orders over $50
  • (2-8 business days)

No import duties or fees - Your order will ship domestically from our Canadian warehouse so you can shop with confidence knowing your order will arrive quickly without extra costs

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Have you tried?

This product

Advanced 0.05% Retinal Serum

Advanced 0.05% Retinal Serum

  • • For experienced retinoid users - ready to upgrade beyond standard retinol
  • • Works 11x faster than retinol*** - clinically proven visible results in just 1 week*
  • • 0.05% Retinal targets all 5 signs of aging - smooths deep wrinkles, fades dark spots, firms and lifts skin
  • • Advanced formula with instant benefits - includes Sirtalice™ for visible firming in 30 minutes**

or

Have you tried?

Starter Retinol Serum

Starter Retinol Serum

  • • Perfect for retinol beginners - gentle introduction to vitamin A skincare
  • • Sensitive skin friendly - smooths fine lines in 7 days without irritation*
  • • 0.01% Retinal formula - gently evens skin tone and refines texture
  • • Gradual cell renewal - builds tolerance while delivering visible improvements

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  • Before and after showing results of Advanced 0.05% Retinal Serum
  • Before and after showing results of Advanced 0.05% Retinal Serum
  • Before and after showing results of Advanced 0.05% Retinal Serum
  • Before and after showing results of Advanced 0.05% Retinal Serum
4.9
Rated 4.9 out of 5 stars
Based on 53 reviews
Total 5 star reviews: 49 Total 4 star reviews: 3 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 0
Reviews Summary
Customers say this retinal serum feels lightweight, absorbs quickly, and layers well without leaving residue or causing irritation. Users report smoother skin texture, reduced fine lines, brighter complexion, and fading dark spots within weeks of use. Many appreciate its gentle formula despite being designed for experienced retinoid users, with minimal burning or dryness. The creamy texture spreads easily and doesn't feel heavy or greasy. Common feedback includes improved skin firmness, more even tone, and a healthy glow. Some mention the yellow tint initially but note it disappears upon application. Reviews consistently praise the affordable price point and effectiveness compared to higher-end alternatives.
53 reviews
  • Ana S.
    Verified Reviewer
    Reviewing
    Advanced 0.05% Retinal Serum
    I recommend this product
    Age Range 35 - 44
    Skin Type Combination
    Skin Concerns Texture, Hyperpigmentation, Fine Lines and Wrinkles
    How long have you used this product for? 1-3 weeks
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    4 days ago
    Maravilloso cumple lo que promete

    Este serum de Inkey es maravilloso, cumple lo que promete. Te deja la piel más uniforme, lisa, con menos líneas de expresión y muy jugosa. La luminosidad es increíble! Lo recomiendo 100%, es muy buenoy eficaz, me encanta

  • skincarereview101
    Reviewing
    Advanced 0.05% Retinal Serum
    I recommend this product
    Rated 5 out of 5 stars
    3 weeks ago
    5 Stars

    Waking up to better looking skin? Yes, please. The Inkey List Advanced Retinal Serum, 15 ml, targets various signs we see as we age. I have been using retinol products for some time, so my skin did well with this product and I am seeing overall clarity in my skin using this.

  • beautywithhunnie
    Reviewing
    Advanced 0.05% Retinal Serum
    I recommend this product
    Rated 5 out of 5 stars
    3 weeks ago
    5 Stars

    From the first few uses, I noticed how comfortably this serum sat on my skin. it absorbs fast and doesn’t leave any tacky feeling. After sticking with it for a bit, my skin started to look more refined, and the fine lines around the corner of my eyes looked a little softer. I like that it never caused burning or tightness for me, which made it really easy to keep in my nightly routine. Overall, it’s been a simple, effective way to get brighter, smoother-looking skin.