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Starter Retinol Serum Duo

Clinically proven to smooth fine lines in just 7 days*. 2x more effective than standard retinol without irritation**

4.8
Rated 4.8 out of 5 stars
4.8 Stars (110 Reviews)
$28.50 $30.00 / 30ml Duo

What you get : A gentle yet effective beginner Retinol serum, clinically proven to visibly smooth fine lines in just 7 days -without irritation*. It helps even skin tone and refine texture while being perfectly suited for first-time Retinol users, sensitive skin, and rosacea-prone skin.

Why it works: Powered by a slow-release Dual-Retinoid complex to gently boost cell turnover. Our encapsulated retinol is proven to be 2x more effective than standard retinol**. Balanced with barrier-boosting ingredients, like 0.2% SymRelief®* 100, soothe skin - so you get results without redness.

How it feels: Silky, lightweight and hydrating. Skin feels comforted, zero irritation.

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.


* 4-week Clinical study on 30 participants 

** Based on a 4-week In Vitro study  

*registered trademark of Symrise AG

Suitable for:

  • Retinol beginners
  • All skin types
  • Sensitive skin
  • Rosacea-prone skin

Targets:

  • Fine Lines
  • Uneven Skin Tone
  • Uneven Skin Texture

Awards & Features

Retinol for Beginners

New to retinol? You're making a smart choice. Retinoids are the #1 dermatologist-recommended ingredient for anti-aging - clinically proven to improve fine lines, uneven skin tone, and texture. This Starter Retinol is formulated specifically for beginners and sensitive skin types.

  • How it’s different: Our breakthrough encapsulated Dual-Retinoid Complex delivers controlled-release technology for maximum effectiveness with minimum irritation. Clinical studies show it's 2x more effective than standard retinol**

  • Active ingredients that work: 1% Granactive Pro+: Next-generation retinoid with encapsulation to smooth fine lines and improve texture while staying gentle. 0.01% Retinal: Potent retinoid for enhanced efficacy and accelerated skin renewal without typical irritation.

  • Your results timeline: Smoother, more even, refined skin texture - with visible improvements starting in just 7 days*

Shipping info

  • Standard USA Tracked Shipping from $7.95* (2-5 business days*). FREE on orders over $40.
  • Standard Tracked Shipping rates per state:
  • $7.95 – Alabama, Arkansas, Colorado, Connecticut, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia,West Virginia, Wisconsin, Wyoming
  • $8.95 – Alaska, Arizona, California, Hawaii, Idaho, Nevada, Oregon, Washington


We are currently unavailable to ship to Guam, Puerto Rico or the US Virgin Islands due to carrier restrictions.  

  • *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.   


Find out more about shipping here.

Our team can be reached via our contact us page with any further queries you have or email help@theinkeylist.com for any queries on delivery or taxes. 

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  • Before and after showing results of Starter Retinol Serum Duo
  • Before and after showing results of Starter Retinol Serum Duo
  • Before and after showing results of Starter Retinol Serum Duo
  • Before and after showing results of Starter Retinol Serum Duo
  • Before and after showing results of Starter Retinol Serum Duo
  • Before and after showing results of Starter Retinol Serum Duo
  • Before and after showing results of Starter Retinol Serum Duo
4.8
Rated 4.8 out of 5 stars
Based on 110 reviews
Reviews Summary
Customers say this serum is gentle and effective for first-time retinol users. Many appreciate its lightweight texture that absorbs smoothly without irritation, even for sensitive skin. Common feedback highlights visible improvements in skin smoothness, brightness, and texture within weeks of use. Users note minimal to no redness or dryness compared to other retinol products. Some mention a slight stickiness that resolves with moisturizer. A few report no noticeable results or delayed benefits. Overall, reviewers praise its beginner-friendly formula and affordable price point, making it ideal for those easing into retinol routines.
110 reviews
  • Fab
    Reviewing
    Starter Retinol Serum
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    5 Stars

    Awesome product

  • Nicole G.
    Verified Buyer
    Reviewing
    Starter Retinol Serum
    I recommend this product
    Age Range 55 - 64
    Skin Type Normal
    Skin Concerns Hyperpigmentation, Fine Lines and Wrinkles
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? Less than 1 week
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    2 weeks ago
    Great serum!

    I have used retinol for at least a couple of years but I wanted to try this product. It delivers!

  • Yuliia Y.
    Verified Buyer
    Reviewing
    Starter Retinol Serum
    I recommend this product
    Age Range 35 - 44
    Skin Type Normal
    Skin Concerns Fine Lines and Wrinkles, Hyperpigmentation, Blackheads
    How long have you used this product for? 1 month - 3 months
    Sensitive Skin Suitability I don’t have sensitive skin
    Rated 5 out of 5 stars
    1 month ago
    Great beginner retinol for smooth morning skin

    This serum is fantastic, especially if you're new to retinol. During the first week, I did feel a slight stingy sensation when I applied it, but my skin completely got used to it after a short adjustment period. Now, I experience zero irritation, and I absolutely love how fresh, soft, and clear my skin looks every morning. It's gentle yet effective, and a permanent keeper in my night routine.