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Definitive Retinol Serum

(2)
Definitive Retinol Serum
Auteur
(2)
Benefits
  • Anti-Pigmentation
  • Mattifying
  • Anti-Wrinkle
  • Firming
  • Lifting
  • Plumping
  • Renewing
  • Scar-Repairing
  • Brightening
  • Anti-Inflammatory
  • Antioxidant
  • Exfoliating
  • Hydrating
  • Barrier-Strengthening
  • Detoxifying

Auteur Definitive Retinol Serum is an ultra-potent overnight treatment that delivers next-level renewal, helping skin become firmer, smoother and more luminous. Encapsulated Retinol (Vitamin A) and Bakuchiol work together to accelerate cell turnover, boost collagen synthesis and tackle uneven tone and pigmentation.

Complementary exfoliating acids such as Lactic and Glycolic Acids refine texture and reveal a brighter surface. A Ceramide Complex and multiple weights of Hyaluronic Acid protect and reinforce the skin barrier, ensuring deep hydration and minimising the irritation often associated with retinol use.

Read more

Auteur Definitive Retinol Serum is an ultra-potent overnight treatment that delivers next-level renewal, helping skin become firmer, smoother and more luminous. Encapsulated Retinol (Vitamin A) and Bakuchiol work together to accelerate cell turnover, boost collagen synthesis and tackle uneven tone and pigmentation.

Complementary exfoliating acids such as Lactic and Glycolic Acids refine texture and reveal a brighter surface. A Ceramide Complex and multiple weights of Hyaluronic Acid protect and reinforce the skin barrier, ensuring deep hydration and minimising the irritation often associated with retinol use.

Read less

30 ml

£295
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More Info

  • - + Who it is for
  • - + How to Apply
  • - + Ingredients
  • - + Smell & Texture
  • - + About the Brand
  • - + Who it is for
  • - + How to Apply
  • - + Ingredients
  • - + Smell & Texture
  • - + About the Brand
Who it is for
Green tick
For you if

Loss of Firmness

Loss of Volume

Wrinkles

Enlarged Pores

Dull Skin

Blackheads/Whiteheads

Volume Loss

Uneven Complexion

Resilient Skin

Red Cross
Not For you if

Sensitive Skin

Reactive Skin

Pregnant / Nursing

Rosacea

Active Acne


Not sure? Consult an expert.

How to Apply
Lightly massage the Definitive Retinol Serum onto clean, dry skin. Apply three times a week at first, gradually building to nightly use over several weeks, while the skin is acclimating.
Ingredients

Scroll down the page for a full breakdown of the active ingredients.

Aqua/Water, Glycerin, Caryodendron Orinocense Seed Oil, Dimethicone, Glyceryl Stearate, Candelilla/Jojoba/Rice Bran Polyglyceryl-3 Esters, Panthenol, Glycolic Acid, Bakuchiol, Prunus Amygdalus Dulcis (Sweet Almond) Oil, Sodium Ascorbyl Phosphate, Squalane, Propylheptyl Caprylate, Cetearyl Alcohol, Lactic Acid, Sodium Stearoyl Lactylate, Hydroxyacetophenone, Magnolia Officinalis Bark Extract, Allantoin, Bis-Glyceryl Ascorbate, Sodium Stearoyl Glutamate, Hydroxypropyl Cyclodextrin, Butylene Glycol, Dimethiconol, Xanthan Gum, Sclerotium Gum, Lecithin, Pullulan, Retinol, Pentylene Glycol, Asiaticoside, Madecassic Acid, Asiatic Acid, Pantolactone, Silica, Plankton Extract, Sodium Hyaluronate, Sodium Acetylated Hyaluronate, Arginine Ferulate, Sodium Hyaluronate Crosspolymer, Hydrolyzed Sodium Hyaluronate, Paeonia Lactiflora Root Extract, Ceramide NP, Hydrogenated Lecithin, Dipropylene Glycol, Sucrose Distearate, Cholesterol, Ceramide AP, Ceramide AS, Ceramide NS, Ceramide EOP, Tocopherol, Helianthus Annuus (Sunflower) Seed Oil, Epigallocatechin Gallate.

* This product contains nut-derived ingredients and should be avoided by individuals with nut allergies.

Contraindications: Not to be used on the eye contour area. SPF must be used when using this product; do not use if you are going to be exposed to direct sunlight. We do not recommend you use this product alongside any other AHA’s or vitamin A products (such as retinol or retinoids). Do not use after invasive medical/aesthetic treatment for at least one month. Do not use immediately after a facial peel, or a medical laser treatment. Do not use on damaged or irritated skin or on open wounds or burns. Do not use on sensitive/sensitised areas, unless directed otherwise by a professional.


Please note: The ingredients listed in this product are subject to change as the formulation is updated. We aim to update the INCI list as soon as possible, but we encourage you to read the ingredient list on the product itself to ensure it's suitable for your personal use.

Smell & Texture

Smells Like: It has a light, clean, and botanical scent.

Texture: A lightweight creamy-serum texture

About the Brand
Brand logo
Launched in Germany in 2021, AUTEUR is a luxury skincare house dedicated to advanced anti-ageing. Working with leading scientists, the line merges epigenetic research with potent concentrations of proven actives. Each formula targets the root causes of ageing, rebuilding skin structure, smoothing wrinkles, and improving elasticity. Every product is extremely powerful, designed for maximum potency and visible transformation. The result is high-performance treatments with lasting results.

No other brand marries high-end German skincare technology with such a breadth of actives to deliver transformative results. Each product boasts an unprecedented concentration of ingredients, so every pump provides a multifaceted treatment that tackles multiple skin concerns at once. This clinically driven approach yields dramatic improvements where conventional routines plateau, delivering visible regeneration and smoothing from the very first application.

AUTEUR’s formulations are rooted in biomedical science and engineered for performance. Advanced encapsulated peptide technology delivers potent molecules deep into the skin for optimal repair. Each formula unites growth factors, antioxidants, probiotics, and ceramides to stimulate collagen, calm inflammation, and fortify the barrier, accelerating renewal and delivering cumulative, clinically proven results.

The Benefits

  • - + Anti-Pigmentation
  • - + Sebum Regulating (Mattifying)
  • - + Anti-Wrinkle
  • - + Firming & Lifting
  • - + Plumping
  • - + Renewing
  • - + Scar-Repairing
  • - + Brightening (Energising)
  • - + Anti-Inflammatory
  • - + Antioxidant
  • - + Chemical Exfoliation
  • - + Reduces Trans Epidermal Water Loss
  • - + Hydrating
  • - + Skin Barrier Strengthening
  • - + Detoxifying
Anti-Pigmentation

Dealing with pigmentation means targeting melanin overproduction to reduce dark spots and prevent new ones. Melanin production can be triggered by UV exposure, pollution, hormonal changes (like during pregnancy), and inflammation (from acne or cuts). This excess pigment is then transferred to surrounding cells in epidermis called keratinocytes, which then moves to the skin's surface, causing visible dark spots.

To treat hyperpigmentation, a personalised and consistent approach is needed. Our anti-pigmentation products include lightening agents to block tyrosinase (the enzyme that creates melanin), antioxidants to fight free radicals, and ingredients to speed up skin cell turnover, removing pigmented cells. Using broad-spectrum sun protection is crucial to prevent new pigmentation during treatment.

Sebum Regulating (Mattifying)

Sebum regulation involves normalising oil production in your sebaceous glands to reduce shine, oiliness and breakouts, restoring your skin's natural balance. Overactive sebaceous glands can be triggered by internal factors like genetics, hormonal changes and stress, as well as external factors such as using stripping or overly active skincare, climate, pollution and diet. Excessive sebum production can lead to enlarged pores, acne and an oily, shiny appearance. Effective sebum regulation means using skincare products that balance oil levels without over-drying your skin, helping you achieve a clearer, more matte complexion.

Anti-Wrinkle

Anti-wrinkle skincare is focused on both preventing and visibly reducing the formation of lines by targeting the structural and dynamic causes of wrinkles within the skin. Fine lines and deeper wrinkles develop as collagen and elastin decline, cell turnover slows and repeated facial movements create creases that become etched over time. Advanced formulations address these mechanisms through a combination of elastin-stimulating actives, smoothing peptides that help relax the appearance of expression lines, and deeply hydrating ingredients that plump the skin from within. By reinforcing the skin’s architecture while softening surface contractions and improving elasticity, anti-wrinkle skincare delivers a visibly smoother complexion.

Firming & Lifting

Firming & Lifting skincare is designed to restore strength, structure, and definition to the skin, creating a visibly tighter, more sculpted appearance. As the skin loses collagen and elasticity over time, it can begin to soften and sag, losing its natural contours. Advanced formulations work to rebuild this support from within—boosting firmness while helping to visibly lift and redefine the skin. The result is a smoother, more toned complexion with enhanced bounce and resilience, where facial contours appear sharper and elevated.

Plumping

Plumping involves using active ingredients to boost the production of key structural components like collagen, the dermal-epidermal junction and glycosaminoglycans (GAGs), giving your skin more volume and density. Collagen provides structural support and firmness, while the dermal-epidermal junction, a thin connective layer, ensures smooth, wrinkle-free skin by facilitating cell communication. GAGs, like hyaluronic acid, keep your skin hydrated and plump from within. By stimulating these components, active ingredients help restore your skin's plumpness and radiance.

Renewing

Renewing skincare focuses on accelerating the skin’s natural turnover cycle to reveal fresher, more refined skin beneath the surface. At the core of this process are retinoids — vitamin A derivatives that function at a cellular level to regulate gene expression, increase cell turnover, and stimulate collagen production, leading to smoother texture, improved tone, and reduced appearance of fine lines and imperfections. Phyto-retinols, plant-derived alternatives, offer a complementary approach by mimicking many of these renewal signals while being generally better tolerated, helping to enhance skin regeneration and clarity without the same level of irritation. Together, these actives promote a continuous cycle of shedding and renewal, refining the skin’s surface while supporting long-term structural improvement for a visibly brighter, more even, and rejuvenated complexion.

Scar-Repairing

Anti-Scarring skincare targets the textured scars left by acne breakouts. These scars form due to inflammation disrupting collagen and elastin fibres leading to uneven healing and indented areas. Anti-Scarring actives harness growth factors and exfoliating actives to stimulate cell repair and regeneration, optimising the skin's healing process to reduce scar formation. They also effectively diminish older scars, improving overall skin texture and leaving you with a smoother complexion and significantly reduced scar visibility.

Brightening (Energising)

Brightening skincare involves using active ingredients to boost your blood circulation, detoxification and cellular energy. Improved blood circulation brings more essential nutrients and oxygen to your skin, while detoxification helps eliminate cell waste and impurities that can make your skin look dull. Certain active ingredients also enhance your skin's metabolism and regeneration. These combined actions restore your skin's vitality and radiant appearance, giving you a fresh, energised complexion.

Anti-Inflammatory

Anti-Inflammatory skincare soothes, heal, and balance your skin, the targeted actives are designed to reduce inflammation. Inflammation is your body's natural response to injury or irritation, but continuous inflammation can lead to troublesome skin conditions like acne, rosacea, or eczema. Our anti-inflammatory skincare solutions work to soothe and calm your skin, reducing redness, swelling, and discomfort to provide much-needed relief. By strengthening your skin's barrier, these products help protect against further irritation and damage. Additionally, the anti-inflammatory actives support your skin's natural healing processes, leading to a more balanced and resilient complexion.

Antioxidant

Antioxidant skincare is dedicated to protecting the skin against oxidative stress—one of the primary drivers of premature ageing and cellular damage—while preserving overall skin integrity and vitality. These formulations rely on potent molecules such as vitamin C, vitamin E, and polyphenols, which neutralize free radicals generated by UV exposure and environmental aggressors before they can compromise cellular structures like lipids, proteins, and DNA. Beyond defence, many antioxidants also support repair processes and enhance collagen stability, contributing to improved firmness, brightness and resilience. The result is skin that is not only shielded from ongoing damage but maintained in a healthier, more luminous state over time.

Chemical Exfoliation

Chemical exfoliation uses acids to dissolve the "glue" holding dead skin cells together, promoting skin cell turnover and replacing old cells with new, healthy ones. Acids like AHAs, BHAs, and PHAs not only help shed skin but also offer benefits like brightening, clarifying, and anti-ageing, depending on the type used.

Reduces Trans Epidermal Water Loss

Reducing Trans Epidermal Water Loss (TEWL) is key to maintaining your skin’s optimal hydration levels. By strengthening your skin’s natural barrier, these ingredients prevent water from escaping, keeping your skin well-hydrated and plump. The result is a smoother, more supple complexion with improved texture and resilience, giving you a healthier, more radiant look.

Hydrating

Hydration is a fundamental part of healthy skincare, focusing on maintaining and restoring the skin’s water content. Well-hydrated skin appears plump, smooth and radiant, while dehydration can lead to dullness, tightness, fine lines and increased sensitivity.
Hydrating the skin can work through a fascinating mix of ingredients with different roles. Humectants like hyaluronic acid and glycerin act like water magnets, pulling water into the skin to instantly plump and smooth, while Natural Moisturizing Factors (NMFs)—such as urea, amino acids and sodium PCA—mimic the skin’s own hydration system, helping it hold onto water and stay balanced from within.
Adding humectants like hyaluronic acid to your routine will restore your skin's healthy glow, minimize fine lines, and provide a plumping effect.

Skin Barrier Strengthening

Strengthening your skin barrier involves replenishing the key elements in the top layer of your skin (stratum corneum), leading to a stronger and healthier barrier. These essential elements include lipids (ceramides, fatty acids, and cholesterol) and Natural Moisturizing Factors (amino acids, hyaluronic acid, etc.). Various factors, such as incorrect skincare use, seasonal changes, and aesthetic treatments, can damage your skin barrier. When this happens, your skin loses excess water through Trans Epidermal Water Loss (T.E.W.L) and becomes less capable of defending against environmental stressors, resulting in dryness, sensitivity, and irritation.

A healthy skin barrier is crucial for overall skin health as it helps prevent hydration loss, protects against environmental damage, and reduces the risk of skin conditions like eczema and acne. By strengthening your skin barrier, you ensure your skin remains well-hydrated, resilient, and protected.

Detoxifying

Detoxifying skincare focuses on clearing the skin of accumulated pollutants, toxins, and metabolic waste that can dull the complexion and disrupt healthy function. Daily exposure to environmental aggressors such as pollution and oxidative stress can overwhelm the skin, leading to congestion, imbalance, and premature ageing. Advanced detoxifying formulations work to neutralise these impurities, support the skin’s natural elimination processes, and reduce the buildup of harmful particles within pores and on the surface. By restoring clarity and balance, this approach leaves the skin feeling purified, refreshed and visibly brighter.

  • - + Anti-Pigmentation
  • - + Sebum Regulating (Mattifying)
  • - + Anti-Wrinkle
  • - + Firming & Lifting
  • - + Plumping
  • - + Renewing
  • - + Scar-Repairing
  • - + Brightening (Energising)
  • - + Anti-Inflammatory
  • - + Antioxidant
  • - + Chemical Exfoliation
  • - + Reduces Trans Epidermal Water Loss
  • - + Hydrating
  • - + Skin Barrier Strengthening
  • - + Detoxifying

Active Ingredients

  • - + Retinol (Vitamin A)
  • - + Encapsulated Retinol
  • - + Bakuchiol
  • - + Alpha-Hydroxy Acids
  • - + 5 Hyaluronic Complex
  • - + Ceramides Complex
  • - + Bioplasma™ FA
  • - + Kahai Oil
Retinol (Vitamin A)

Vitamin A also known as retinol is one of the most well proven skincare actives for treating blemishes, pigmentation, and signs of ageing. It works by speeding up cell turnover, stimulating collagen and elastin production, supporting DNA repair and regulating melanin (pigment) and sebum (oil) overproduction. This results in a smoother, firmer, more even complexion.

Encapsulated Retinol

Encapsulated Retinol is a stabilised form of Vitamin A that is released gradually when massaged into the skin, reducing irritation and dryness typically associated with retinol use. Retinol is one of the most well proven skincare actives for treating blemishes, pigmentation, and signs of ageing. It works by speeding up cell turnover, stimulating collagen and elastin production, supporting DNA repair and regulating melanin (pigment) and sebum (oil) overproduction. This result is a smoother, firmer, more even complexion.

Bakuchiol

Bakuchiol is a clinically proven, natural alternative to retinol, studies have demonstrated that Bakuchiol offers retinol-like benefits such as boosting collagen production, brightening and promoting skin cell renewal, resulting in firmer, smoother, and more event toned complexion. Unlike retinol, Bakuchiol is non-irritating and non-photo-sensitising, thus safe to use every day, morning and evening, without the usual side effects of retinol. Moreover, Bakuchiol provides anti-inflammatory, antioxidant, and anti-bacterial properties that help soothe, protect, and minimise blemishes.

Alpha-Hydroxy Acids

Alpha-Hydroxy Acids are a chemical exfoliant which exfoliate the top layers of the skin, offering a variety of benefits. They are mostly derived from plant-based sources. Some of the most common AHAs are Glycolic Acid, Lactic Acid, Citric Acid, Mandelic Acid and Malic Acid. Depending on the type of AHA, they can reduce dullness, even skin tone, reduce pigmentation, tighten pores, stimulate collagen production, hydrate the skin and offer antioxidant protection. AHAs are generally less irritating and drying to the skin as they are water-soluble.

5 Hyaluronic Complex

Hyaluronic Complex includes 5 different molecular weights of Hyalurons ranging from ultra-low too high for and instant boost of hydration, increased skin firmness and elasticity and long-lasting plumping results.

Hyaluronic Complex includes:

Cross-linked Hyaluronic Acid or Sodium Hyaluronate Crosspolymer, forms a three-dimensional mesh-like structure on the skin's surface. This unique structure acts as a breathable hydration barrier, helping to increase water retention by blocking trans epidermal water loss (TEWL). Cross-linked hyaluronic acid also has wrinkle-filling and skin-softening effect.

Medium Molecular Weight Hyaluronic Acid or Sodium Acetylated Hyaluronate, occupies a unique position between high and low molecular weight hyaluronic acids, boosting skin hydration in the middle layers of the skin. It complements and enhances hydrating plumping results from famous Low and High Hyaluronic Acids, giving the skin even more suppleness and volume. It's in particularly good for those who have hollow faces due to density loss.

Low Molecular Weight Hyaluronic Acid or Sodium Hyaluronate, is a salt for derived from naturally occurring hyaluronic acid. Sodium hyaluronate has a low molecular size which allows it to penetrate the skin deeper and more effectively. Sodium hyaluronate has superior hydrating and skin-plumping benefits. Increased skin hydration also contributes to efficient desquamation, supporting the skin's natural renewal cycle.

Ultra-Low Molecular Weight or Hydrolyzed Hyaluronic Acid penetrates the skin the faster and the deepest compared to other forms. This provide ultra hydrating and plumping results. Additionally it can enhance collagen and elastin synthesis by stimulating fibroblast activity, resulting in firmer, denser and smoother looking skin.

Ceramides Complex

Ceramides are lipids naturally found in our skin barrier. They play an essential role in preventing Trans epidermal Water Loss (TEWL) which is the loss of moisture through the skin, by restoring and maintaining healthy the skin's barrier function. Ceramides also enhance the skin's natural protection against environmental aggressors and irritants, helping to keep skin balanced and calm.

Bioplasma™ FA

Bioplasma™ FA is a proprietary blend of Phytoplankton Extract and Arginine Ferulate aimed at detoxifying skin cells and protecting against environmental stressors. By effectively reducing Trans epidermal Water Loss (TEWL), it strengthens the skin's protective barrier, retains moisture, and diminishes the depth of wrinkles.

Kahai Oil

Kahai Oil, also known as Cacay Oil, offers versatile benefits including anti-ageing, nourishment, and protection for the skin. Kahai Oil works through a combination of its rich components: The Vitamins E and A in Kahai Oil act as antioxidants, protecting skin cells from free radical damage and environmental stressors, which helps to prevent premature ageing. Vitamin A (Retinol) supports skin cell renewal and repair, reducing the appearance of fine lines and wrinkles by promoting the production of new, healthy skin cells. Omega-3 and Omega-6 Fatty Acids are essential fatty acids that strengthen the skin barrier, improve hydration, and reduce inflammation, leading to healthier, more resilient skin. Together, these components nourish, protect, and rejuvenate the skin, resulting in a smoother, more youthful complexion.

  • - + Retinol (Vitamin A)
  • - + Encapsulated Retinol
  • - + Bakuchiol
  • - + Alpha-Hydroxy Acids
  • - + 5 Hyaluronic Complex
  • - + Ceramides Complex
  • - + Bioplasma™ FA
  • - + Kahai Oil
Encapsulated Retinol

Encapsulated Retinol is a stabilised form of Vitamin A designed to reduce fine lines, wrinkles and hyperpigmentation. Its encapsulation allows for deeper penetration and minimises irritation, making it more effective than traditional retinol. This ingredient accelerates skin-cell turnover, promoting a radiant and balanced complexion. Users report smoother skin texture and reduced signs of ageing without the harsh side effects often associated with retinol. The gentle yet powerful formulation ensures visible results while maintaining skin health and comfort.

Spotlight

Encapsulated Retinol

Encapsulated Retinol is a stabilised form of Vitamin A designed to reduce fine lines, wrinkles and hyperpigmentation. Its encapsulation allows for deeper penetration and minimises irritation, making it more effective than traditional retinol. This ingredient accelerates skin-cell turnover, promoting a radiant and balanced complexion. Users report smoother skin texture and reduced signs of ageing without the harsh side effects often associated with retinol. The gentle yet powerful formulation ensures visible results while maintaining skin health and comfort.

Why I love it

  • "Featuring high-end German skincare technology and powerful actives, I was astounded by the results. This is a new kind of luxury, who wouldn't want this on their bathroom shelf?”

    X Natalie K-F

    Founder, Embassy of Beauty

  • Auteur Definitive Retinol Serum 30ml
    Auteur

    Definitive Retinol Serum

    £295

    Auteur Definitive Retinol Serum is an ultra-potent overnight treatment that delivers next-level renewal, helping skin become firmer, smoother and more luminous. Encapsulated Retinol (Vitamin A) and Bakuchiol work together to accelerate cell turnover, boost collagen synthesis and tackle uneven tone and pigmentation.

    Complementary exfoliating acids such as Lactic and Glycolic Acids refine texture and reveal a brighter surface. A Ceramide Complex and multiple weights of Hyaluronic Acid protect and reinforce the skin barrier, ensuring deep hydration and minimising the irritation often associated with retinol use.

    View product