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Superlative Serum Phi

(2)
Superlative Serum Phi
Auteur
(2)
Benefits
  • Active Delivery
  • Regenerating
  • Anti-Wrinkle
  • Barrier-Strengthening
  • Firming
  • Lifting
  • Plumping
  • Anti-Pigmentation
  • Scar-Repairing
  • Brightening
  • Anti-Inflammatory
  • Cellular Anti-Ageing
  • Anti-Redness
  • Hydrating
  • Nourishing

The Auteur Superlative Serum Phi is a high-performance anti-ageing treatment that restores firmness, smooths wrinkles and improves skin resilience. It uses regenerative bio-reprogramming peptides to activate youthful cell behavior, support structured matrix repair and reduce internal skin stress.

Lifting peptides soften expression lines, while stabilising actives including Niacinamide optimise hydration, calm inflammation and balance pigment responses. The serum delivers these signals into the upper epidermis, improving communication between renewal cells and collagen-producing fibroblasts, resulting in firmer, smoother, brighter and optimally hydrated skin.

Read more

The Auteur Superlative Serum Phi is a high-performance anti-ageing treatment that restores firmness, smooths wrinkles and improves skin resilience. It uses regenerative bio-reprogramming peptides to activate youthful cell behavior, support structured matrix repair and reduce internal skin stress.

Lifting peptides soften expression lines, while stabilising actives including Niacinamide optimise hydration, calm inflammation and balance pigment responses. The serum delivers these signals into the upper epidermis, improving communication between renewal cells and collagen-producing fibroblasts, resulting in firmer, smoother, brighter and optimally hydrated skin.

Read less

30 ml

£345
MyEB
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Get The Set
Advanced Anti-Ageing Day-to-Night Duo
Advanced Anti-Ageing Day-to-Night Duo

Superlative Serum Phi
Superlative Cream Voyage

£665

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

Reactive Skin

Redness-Prone

Loss of Firmness

Loss of Tone

Wrinkles

Volume Loss

Dehydrated Skin

Red Cross
Not For you if
How to Apply
To be used morning and/or evening. Apply the Superlative Serum Phi onto the face, neck and décolleté. Use fingertips to press and release onto skin. Tip: Apply a small amount to areas of concern and allow to absorb fully before applying additional steps.
Ingredients

Aqua, Glycerin, Propanediol, Pentylene Glycol, Maltodextrin, Hydroxypropyl Cyclodextrin, Lecithin, Collagen Amino Acids, Hydrolyzed Hyaluronic Acid, Saccharomyces Lysate Extract, Psidium Guajava Leaf Extract, Caprylyl Glycol, Palmitoyl Tripeptide-5, Palmitoyl Tripeptide-38, Acetyl Hexapeptide-8, Tridecapeptide-1, Xanthan Gum, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Phenoxyethanol, Sodium Hydroxide.


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

Smell: Fragrance free

Texture: Clear and silky gel

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

  • - + Active Delivery
  • - + Regenerating
  • - + Anti-Wrinkle
  • - + Skin Barrier Strengthening
  • - + Firming & Lifting
  • - + Plumping
  • - + Anti-Pigmentation
  • - + Scar-Repairing
  • - + Brightening (Energising)
  • - + Anti-Inflammatory
  • - + Injectable Effect
  • - + Anti-Ageing (Senescence)
  • - + Anti-Redness
  • - + Hydrating
  • - + Nourishing
  • - + Reduces Trans Epidermal Water Loss
Active Delivery

Active Delivery skincare involves advanced technologies designed to boost the absorption and effectiveness of active ingredients deep within your skin's layers. These enhancements ensure that other ingredients deliver their powerful benefits precisely where they're needed most. By overcoming the common issue of low permeability in many effective ingredients, active delivery ingredients maximise the unique benefits and visible results of your skincare routine.

Regenerating

Regenerating skincare actively stimulates the formation of new, healthier skin, working in alignment with the skin’s innate renewal processes. Central to this are growth factors—effectively encouraging the development of new skin tissue. Peptides complement this by acting as targeted messengers guiding the skin to rebuild with greater strength and structural integrity. Stem cell–derived actives further support this environment by delivering protective and regenerative signals that optimize cellular function and renewal. While these mechanisms are synonymous with advanced anti-ageing—improving firmness, elasticity and overall skin quality—they are equally valuable in addressing scarring, as they promote tissue repair, accelerate regeneration and help restore a smoother, more even skin surface.

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.

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.

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.

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.

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.

Injectable Effect

The ''Injectable-Like Effect'' involves using these neurotransmitter-inhibiting peptides to relax tiny facial muscles, smoothing out existing wrinkles. This process also stimulates the natural production of collagen and elastin, helping to prevent new wrinkles from forming.

Anti-Ageing (Senescence)

Anti-senescence skincare represents a new frontier in skin longevity, focusing on slowing and reversing the accumulation of “retired” cells that no longer contribute to renewal but actively accelerate ageing. These senescent cells release inflammatory signals and degradative enzymes that weaken the skin’s structure, leading to loss of firmness, uneven tone, and the formation of wrinkles. Advanced anti-senescence formulations are designed to target this process at a cellular level—helping to limit the formation of these dysfunctional cells, neutralize their harmful effects, and support the regeneration of healthy, active ones. By restoring a more youthful cellular environment, this approach goes beyond traditional anti-ageing, promoting skin that appears smoother, stronger, and visibly revitalized over time.

Anti-Redness

Anti-Redness skincare is all about reducing and preventing facial or body redness, which can result from irritation, skin conditions, compromised barriers, and hormonal changes. A targeted approach with multiple strategies works best for tackling redness. Anti-Redness formulations include active ingredients that soothe and strengthen your skin barrier. Their anti-inflammatory and antioxidant properties calm inflammation and protect against environmental irritants. Additionally, these ingredients have vasoconstrictive properties, meaning they reduce blood vessel dilation to lessen redness. Together, these actions help achieve a more even-toned, balanced complexion that's less prone to redness flare-ups.

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.

Nourishing

Nourishing skincare focuses on replenishing the skin with essential lipids, nutrients, and bioactive compounds to restore comfort, resilience, and optimal function. When the skin is depleted—whether through environmental stress, over-exfoliation, or natural ageing—it can become dry, fragile, and less able to protect itself. Nourishing formulations work to rebuild the lipid barrier using ingredients rich in fatty acids, vitamins, and antioxidants, helping to reinforce the skin’s structure while supporting repair and reducing moisture loss. By restoring what the skin lacks, this approach leaves it softer, stronger, and more supple.

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.

  • - + Active Delivery
  • - + Regenerating
  • - + Anti-Wrinkle
  • - + Skin Barrier Strengthening
  • - + Firming & Lifting
  • - + Plumping
  • - + Anti-Pigmentation
  • - + Scar-Repairing
  • - + Brightening (Energising)
  • - + Anti-Inflammatory
  • - + Injectable Effect
  • - + Anti-Ageing (Senescence)
  • - + Anti-Redness
  • - + Hydrating
  • - + Nourishing
  • - + Reduces Trans Epidermal Water Loss

Active Ingredients

  • - + Tridecapeptide‑1
  • - + Vitamin B3 (Niacinamide)
  • - + Hydrolyzed Collagen
  • - + Argireline
  • - + Biologically Optimised Guava
  • - + Low Molecular Weight Hyaluronic Acid
  • - + Lecithin
Tridecapeptide‑1

A Bio-Reprogramming Peptide is an advanced cell-signaling active that helps aging skin behave more like young skin by “talking” to skin cells; it works by binding to cell receptors and activating gene pathways that control skin repair, collagen production, inflammation. It also improves the efficacy of other actives, instead of just sitting on the surface, it sends instructions that help cells regenerate and reduce internal stress. The results are firmer, smoother, brighter, better-hydrated skin with improved elasticity and visible reduced wrinkles.

Vitamin B3 (Niacinamide)

Vitamin B3 also known as Niacinamide, is versatile and highly effective ingredient with many benefits. It helps to strengthen skin barrier function and increase water retention by increasing natural ceramide production. It's anti-inflammatory and sebum regulating properties soothe, repair and balance irritated, weakened and acne prone skins. Niacinamide is also a potent antioxidant with protective and brightening properties helping to restore skin's natural glow.

Hydrolyzed Collagen

Hydrolyzed Collagen refers to collagen that has been broken down by enzymatic hydrolysis into amino acids and smaller peptides for deeper and better absorption. Amino Acids and Peptides assist in skin repair processes and encourage collagen synthesis resulting in firmer and more resilient skin. Hydrolyzed Collagen also act as a potent humectant, attracting and retaining water in the skin for hydrated, plump complexion.

Argireline

Argeriline also known as Acetyl Hexapeptide-8 is a neurotransmitter-inhibiting peptide, meaning it can minimise muscle contractions to provide injection-free wrinkle smoothing results. It can also support collagen in the skin, helping to persevere skin firmness.

Biologically Optimised Guava

A bioactive extract engineered to counteract cellular senescence—one of the primary drivers of skin ageing. By targeting and reducing the accumulation of senescent cells, it minimises chronic inflammation, a key factor in skin dullness and degradation. In addition, its anti-inflammatory properties help calm sensitised or stressed skin, reducing visible redness while strengthening the skin’s natural defence and resilience for healthier-looking skin over time.

Low Molecular Weight Hyaluronic Acid

Low Molecular Weight Hyaluronic Acid (LMW-HA) is a smaller, more penetrative form of hyaluronic acid. Unlike high molecular weight forms that primarily hydrate the skin’s surface, LMW-HA has the ability to penetrate deeper into the epidermis, where it attracts and binds water to maintain optimal moisture levels from within. This deep hydration helps improve skin elasticity, firmness and smoothness, while reducing the appearance of fine lines and dehydration-induced wrinkles. Additionally, it enhances overall suppleness, making the complexion look plumper and more resilient. It is ideal for dehydrated, dull or mature skin, and especially those in need of long-lasting hydration and improved texture.

Lecithin

Lecithin is a deeply soothing ingredient that helps strengthen the skin’s barrier and protects against dryness and irritation. Rich in nourishing Fatty Acids, Glycerol, and Phospholipids (the building blocks of healthy cells) it also helps to repair weakened and damaged skins while locking hydration.

  • - + Tridecapeptide‑1
  • - + Vitamin B3 (Niacinamide)
  • - + Hydrolyzed Collagen
  • - + Argireline
  • - + Biologically Optimised Guava
  • - + Low Molecular Weight Hyaluronic Acid
  • - + Lecithin
Hydrolysed Collagen

Hydrolysed Collagen is a form of collagen broken into smaller peptides for easier absorption into the skin, offering enhanced elasticity and hydration. Collagen is a naturally occurring protein in our bodies, responsible for maintaining skin’s structure, firmness and elasticity.

Utilising it as a bioavailable ingredient helps to reduce fine lines and wrinkles while promoting a smoother, youthful complexion. By supporting the skin’s natural collagen production, it improves firmness and resilience with enhanced skin texture, tone and an overall radiant glow.

An effective solution in maintaining skin health, it’s a vital component in anti-ageing skincare formulations for firmer, fresher skin.

Clinical Proofs

Wrinkle volume: -30%
After twice-daily use, skin appears smoother and more refined.

Skin Roughness: -18%
Significant texture improvement visible after 4 weeks of application.

Effectiveness after application of up to: 90%
Immediate wrinkle-smoothing action with rapid visible results.

Spotlight

Hydrolysed Collagen

Hydrolysed Collagen is a form of collagen broken into smaller peptides for easier absorption into the skin, offering enhanced elasticity and hydration. Collagen is a naturally occurring protein in our bodies, responsible for maintaining skin’s structure, firmness and elasticity.

Utilising it as a bioavailable ingredient helps to reduce fine lines and wrinkles while promoting a smoother, youthful complexion. By supporting the skin’s natural collagen production, it improves firmness and resilience with enhanced skin texture, tone and an overall radiant glow.

An effective solution in maintaining skin health, it’s a vital component in anti-ageing skincare formulations for firmer, fresher skin.

Clinical Proofs

Clinical Proofs

Wrinkle volume: -30%
After twice-daily use, skin appears smoother and more refined.

Skin Roughness: -18%
Significant texture improvement visible after 4 weeks of application.

Effectiveness after application of up to: 90%
Immediate wrinkle-smoothing action with rapid visible results.

Auteur Superlative Serum Phi 30ml
Auteur

Superlative Serum Phi

£345

The Auteur Superlative Serum Phi is a high-performance anti-ageing treatment that restores firmness, smooths wrinkles and improves skin resilience. It uses regenerative bio-reprogramming peptides to activate youthful cell behavior, support structured matrix repair and reduce internal skin stress.

Lifting peptides soften expression lines, while stabilising actives including Niacinamide optimise hydration, calm inflammation and balance pigment responses. The serum delivers these signals into the upper epidermis, improving communication between renewal cells and collagen-producing fibroblasts, resulting in firmer, smoother, brighter and optimally hydrated skin.

View product