Composition No. 1 Serum

A potent overnight serum—clinically proven to reduce lines and wrinkles—that is powered by collagen-targeting peptides, encapsulated retinol, and liquid oxygen to renew and rebuild skin while you sleep.

£1,214.00

50 ml

Editor's Note

Skin repair meets next-level innovation in this overnight serum that truly lives up to its name. Think of it as a masterclass in modern skin regeneration.

Product details

A comprehensive approach to overnight skin renewal, Composition No. 1 combines advanced peptide technology, time-released retinol, and targeted barrier support in a single, high-performance treatment. At the heart of the formula is a precision peptide complex designed to address multiple signs of aging, including loss of firmness, diminished elasticity, uneven texture, and expression lines. An encapsulated, time-released retinol supports skin renewal throughout the night, helping improve the appearance of fine lines, wrinkles, and uneven tone while allowing for controlled delivery.

To balance the concentrated active formula, ceramides, phytosphingosine, and a multi-level hydration complex help replenish moisture, reinforce the skin barrier, and maintain comfort. The addition of collagen-supporting technology and Liquid Oxygen further targets the visible effects of aging, fatigue, and environmental stress.

INSIDE THE FORMULA

mRNA-Collagen: An advanced collagen-supporting technology designed to address visible signs of collagen loss, improve the appearance of skin density, and promote a firmer, more resilient complexion
Precision Peptide Complex: A combination of neuropeptides, signaling peptides, and copper peptides, supported by advanced encapsulation technology, that targets the appearance of expression lines and wrinkles while improving firmness, elasticity, density, and radiance
Encapsulated retinol: A time-released form of vitamin A that supports overnight skin renewal, helping reduce the appearance of fine lines, wrinkles, and uneven texture through controlled delivery
Liquid Oxygen: A technology designed to support cellular oxygenation and skin metabolism, helping address visible signs of fatigue and promote a revitalized complexion
Ceramides and phytosphingosine: Skin-identical lipids that help replenish the moisture barrier, reduce moisture loss, and maintain skin comfort
Multi-level hydration complex: Helps deliver and retain moisture to improve hydration, suppleness, and the appearance of plumpness
Fragrance-free

VISIBLE RESULTS

Stimulates collagen production to firm and lift
Reduces fine lines, wrinkles, and visible signs of fatigue
Refines texture and visibly smooths skin’s surface
Restores hydration and plumps from within
Helps repair environmental damage and photoaging
Supports skin’s natural regeneration and resilience

how to use

Apply to clean, dry skin in the evening, before moisturizer
Begin by using every other evening or three times weekly, alternating with a hydration-focused routine
Increase frequency gradually as skin builds tolerance to this concentrated formula

ingredients

Aqua/Water, Perfluorohexane, Cetearyl Alcohol, Caprylic/Capric Triglyceride, Niacinamide, Glyceryl Stearate Citrate, Polyglyceryl-6 Stearate, Squalane, Prunus Amygdalus Dulcis Oil, Pentylene Glycol, Cetearyl Isononanoate, Panthenol, Glycerin, Ectoin, Sucrose Stearate, Perfluorodecalin, Dicaprylyl Carbonate, Propylheptyl Caprylate, Sodium PCA, Alpha-Glucan Oligosaccharide, Distarch Phosphate, Pentafluoropropane, Ceramide NP, 2,3-Butanediol, Xanthan Gum, Polyglyceryl-6 Behenate, Butyrospermum Parkii Butter, Phospholipids, Retinol, Tocopherol, Microcrystalline Cellulose, Copper Tripeptide-1, Alcohol, Sodium Lactate, Propanediol, Helianthus Annuus Seed Oil, Allantoin, Ethylhexylglycerin, Hydrogenated Lecithin, Tetrasodium Glutamate Diacetate, Cetyl Palmitate, Cellulose Gum, Phytosphingosine, Lecithin, Glyceryl Stearate, Lauryl Glucoside, Sorbitol, Citric Acid, Hydrogenated Phosphatidylcholine, Sodium Hyaluronate, Sodium Acetylated Hyaluronate, Ceramide NS/Ceramide NG, Hydroxypalmitoyl Sphinganin, Ceramide AP, Cholesterol, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate, Caprylyl Glycol, Sodium Hyaluronate Crosspolymer, Hydrolyzed Sodium Hyaluronate, 1,2-Heptanediol, Sodium Hydroxide, Magnolia Officinalis Bark Extract, Paeonia Lactiflora Root Extract, Magnesium Chloride, Palmitoyl Pentapeptide-4, Ceramide EOP, Cyclotetrapeptide-24 Aminocyclohexane Carboxylate, RNA, Gold, Palmitoyl Nonapeptide-51, Palmitoyl Nonapeptide-52, Palmitoyl Oligopeptide-244, Lactic Acid, Phenoxyethanol

Violet Code Approved

The Violet Code is a rigorous testing process by which our Committee of leading makeup artists, hairstylists, skin care experts, nail artists, and perfumers deem products best-in-class and therefore worthy of their kits, our SHELVES, and your vanity.

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Rated 4.0 out of 5 stars

Based on 1 review

100%would recommend this product

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Ian
Verified Buyer
I recommend this product
Rated 4 out of 5 stars
5 months ago
The serum that tries to do too much, but misses the mark...
After using COMPOSITION No. 1 for about eight months (I'm on bottle number two), I thought I'd share a review, since few want to take the financial plunge before some intel (which is wise)...
I'll state outright that I love AUTEUR products. The packaging is incredible, and each product is innovative and unique. This is the only one I've tried that I'm lukewarm on.
COMPOSITION No. 1 is almost great -- and filled with great ingredients (namely the high concentration of perfluorocarbons) -- but I've found that it's, essentially, an 'overachiever,' trying to do too many things at once and just missing the mark in the process. It's so active-packed, in fact, that it pretty quickly pills on my skin, leaving that distinct, retinoid-yellow tinge upon application. If I could give AUTEUR notes, I'd suggest that they dial-down the amount of retinol in this formula because of its pilling (and drying) effect. Otherwise, it's strong -- after about two months of nightly use, I noticed that my skin was smoother and more toned overall. Just before the six-month mark, I found that my crow's feet had diminished. The problem? These effects plateaued after that (my skin basically looks the way it did three months ago, with no other notable improvements). That's not really a negative... I suppose I just expected a bit more, and it's difficult to justify the price while only noticing a few modest improvements.
If you're in the market to spend north of $1k on skincare, I suggest MBR's LIQUID…
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Composition No. 1 Serum

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