Elixir Gold & Caviar Serum
A deeply hydrating serum for an instantly radiant, smoother-looking complexion, with a caviar & gold-tone signature.
Made in Switzerland
Complimentary 2-4 Business Days Express Delivery · 30-day guarantee
Switzerland
actives
Guarantee
Pescatarian
Our Promise
If the Elixir Serum isn’t the treatment your skin has been waiting for, write to us within 30 days and we refund it in full — opened or unopened, with nothing to send back.
The Elixir Serum is formulated in our Swiss laboratory.
The Aurea Caviar Reserve™ complex at the centre of this serum reflects four years of laboratory development, in collaboration with Switzerland’s established active-ingredient houses.
Cosmetic-grade gold (24K) sourced under London Bullion Market Association good-delivery standards. Sustainably farmed Siberian sturgeon (Acipenser baerii) caviar extract under EU aquaculture, CITES Appendix II compliant. Palmitoyl Tripeptide-5 (Syn®-Coll). Bio-fermented black tea (KOMBUCHKA™). Leontopodic acids from Organic Edelweiss extract.
Every active in this serum is named, sourced, and disclosed. Concentration ranges available on request.
The Elixir Serum is backed by our 30-day satisfaction guarantee. If it doesn’t visibly transform your skin within 30 days, write to us and we refund it in full — opened or unopened, with nothing to send back.
Apply morning and evening after Aurora Cleanser and Glacial Toner. Warm two to three drops between the palms for five seconds — warmth activates the lipid complexes within Aurea Caviar Reserve™. Press gently into face, neck, and décolleté with upward motions. Allow sixty seconds, then follow with Elixir Gold & Caviar Cream to seal. Detailed sequence below.
Aqua, Glycerin, Dimethylsilanol Hyaluronate, Propanediol, Propylene Glycol, Saccharomyces/Xylinum/Black Tea Ferment, Silica, Cyclopentasiloxane, Ci 77891, Peg-20 Methyl Glucose Sesquistearate, Cyclohexasiloxane, Sodium Levulinate, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Milk Protein, 1,2-Hexanediol, Hydrolyzed Collagen, Nylon-12, Octyldodecanol, Dimethicone, Xanthan Gum, Mica, Tocopheryl Acetate, Methyl Glucose Sesquistearate, Maltodextrin, Parfum, Sodium Anisate, Glyceryl Caprylate, Polysilicone-11, Phenoxyethanol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Citric Acid, Glyceryl Acrylate/Acrylic Acid Copolymer, Ci 77491, Tetrasodium Glutamate Diacetate, Leontopodium Alpinum Flower/Leaf Extract, C30-45 Alkyl Cetearyl Dimethicone Crosspolymer, Artemisia Umbelliformis Flower Extract, Isohexadecane, Ci 77492, Sodium Hydroxide, Caviar Extract, Sodium Benzoate, Ammonium Polyacryloyldimethyl Taurate, Potassium Sorbate, Ethylhexylglycerin, Polysorbate 20, Polysorbate 80, Palmitoyl Tripeptide-5, Tin Oxide, Gold, Acetyl Heptapeptide-9
Complimentary express shipping on every US order, delivered in 2–4 business days.
30-day guarantee: if it doesn’t visibly transform your skin, write to us and we refund it in full. Nothing to send back. Refunds are issued within 7 business days.
The one serum that changes everything after it.
Moisturisers seal. Cleansers remove. But the serum — applied to skin that has been cleansed, toned, and made maximally receptive — is the only step where concentrated actives produce visible change in the appearance of mature skin.
Each drop carries Aurea Caviar Reserve™ — the proprietary Swiss complex of regenerative caviar lipids, gold peptides, Palmitoyl Tripeptide-5 (Syn®-Coll), and the triple antioxidant shield that protects what the other actives build. Warm between the palms first. Press, don’t rub.
Four years of laboratory work precede every bottle of the Elixir Serum.
The SÉRÈNE Suisse laboratory sits in the Swiss canton where many of the world’s most respected skincare houses formulate — the same regulatory environment, the same cellular research tradition, the same exacting standards. Every active in the Elixir Serum was selected over a multi-year development cycle for one criterion: visible structural change in the appearance of mature skin.
Aurea Caviar Reserve™ was the result of forty-seven iterations before it met the brief: ten actives at concentrations published by their suppliers, working in concert without antagonism, in a texture that absorbs cleanly under both cream and SPF. That is the difference between a serum that earns its place in a luxury ritual and one that simply costs the same.
Three forces work against mature skin every day.
The Elixir Serum is the answer to all three.
Sustained UV & Oxidative Load
From northeastern beach summers to Sun Belt year-rounds, sustained UV is the single largest extrinsic driver of the look of mature skin. Aurea Caviar Reserve™ addresses it with a triple antioxidant defence — Edelweiss leontopodic acids, Vitamin E, and KOMBUCHKA™ bio-fermented black tea.
Air-Conditioned Air
Office HVAC and home heating strip ambient humidity below thirty percent for half the year. Standard surface hyaluronic acid actually pulls moisture out of skin in this environment. Dimethylsilanol Hyaluronate — silicon-bonded HA — restructures the skin’s water-retention architecture from within, where AC cannot strip it.
Hormonal Transition
From perimenopause onward, the lipid layer thins and the recovery window after every external stressor lengthens. Palmitoyl Tripeptide-5 (Syn®-Coll) supports the skin's own natural collagen; the caviar lipid envelope restores the appearance of barrier integrity that hormonal change has thinned.
Aurea Caviar Reserve™
Powered by Aurea Caviar Reserve™ — a proprietary Swiss formulation of cosmetic-grade gold paired with sustainably farmed Siberian caviar extract, Palmitoyl Tripeptide-5 (Syn®-Coll), bio-fermented black tea (KOMBUCHKA™), silicon-bonded hyaluronic acid, Vitamin E, and Alpine edelweiss — backed by four years of laboratory development in Switzerland.
Caviar Extract
Rich in omega fatty acids and amino acids that nourish and revitalize mature skin.
Gold with Acetyl Heptapeptide-9
A gold peptide duo that supports the look of firm, luminous, vital skin.
Dimethylsilanol Hyaluronate
Silicon bound hyaluronate, among the first ingredients in the formula, for deep and lasting hydration.
KOMBUCHKA™ (Black Tea Ferment)
Improves the look of smoothness, density, and natural radiance.
Hydrolyzed Collagen and Milk Protein
Condition and support the look of skin elasticity.
Syn®-Coll (Palmitoyl Tripeptide-5)
A Swiss peptide that supports the skin's own natural collagen.
Organic Edelweiss (Leontopodium Alpinum Flower/Leaf Extract)
Alpine antioxidant that helps defend skin from environmental stress.
Artemisia Genepi Flower Extract
Calms and comforts the look of reactive skin.
Vitamin E (Tocopheryl Acetate)
Protects against free radicals and supports the skin barrier.
Light reflecting minerals
An immediate satin luminosity that flatters the skin while the actives work.
What this serum doesn’t do.
Doesn’t pill under cream or SPF.
The lipid complexes within Aurea Caviar Reserve™ were calibrated against silicone-based and mineral SPF formulas to absorb cleanly at the sixty-second mark. Layers cleanly with Elixir Gold & Caviar Cream and with your SPF in the morning.
Doesn’t leave a metallic residue.
The 24K cosmetic-grade gold dissolves into a satin finish on contact with skin temperature. Visible luminosity stays; no glitter, no streak, no transfer to clothing or pillowcase. The luminous finish is the formula working — not a surface effect.
Doesn’t sting on sensitive or post-procedure skin.
No essential oils. Artemisia Genépi is included to calm reactivity through the application window.
The treatment moment
perfected.
Sequence and technique matter as much as the formula itself. Warming between the palms activates the lipid complexes within Aurea Caviar Reserve™. Upward motions work with the skin’s lymphatic flow. The cream that follows seals what this serum delivers.
Cleanse & Tone First
Begin with Aurora Cleanser and Glacial Toner. The toner calibrates pH and opens the absorption pathway.
Warm Two to Three Drops
Dispense two to three drops and press between fingertips for five to eight seconds. Warmth liquefies the lipid complexes within Aurea Caviar Reserve™, improving spreadability. This step is not optional.
Press — Do Not Rub
Press the serum gently into face, neck, and décolleté with upward sweeping motions from the centre outward. Rubbing drags active lipid molecules across the surface rather than pressing them in.
Allow Sixty Seconds
The serum absorbs in 30–90 seconds depending on skin condition. Wait until the skin feels velvety and no longer tacky before applying the cream. The serum needs to penetrate before the occlusive layer seals it.
Seal with Cream — AM, Add SPF
Follow with Elixir Gold & Caviar Cream to seal in Aurea Caviar Reserve™. In the morning, wait two minutes and finish with a broad-spectrum SPF as the outermost layer. SPF must always be the outermost step.
Continue the ritual
View ritual sets
Glacial Toner
The bridge between cleanse and treatment. Glacial Mineral Complex™ calibrates pH to the absorption window the Elixir Serum requires — without it, this serum cannot perform as designed.
Elixir Gold & Caviar Cream
Designed as a pair with this serum. The cream seals in and amplifies every active Aurea Caviar Reserve™ delivers — the caviar lipid envelope is the long-wear layer the serum cannot carry on its own.
Gold & Caviar Ritual
The complete four-step ritual — Cleanser, Toner, Serum, and Cream — calibrated to work in concert. Le Rituel Alpin.
“My aesthetician asked what procedure I had had done. I had not. Twelve weeks with the Elixir Serum and my skin looks more alive than it has in years. My husband noticed first — he never notices anything.”
“After perimenopause, nothing I had used for years worked anymore. Within three weeks of pairing this serum with the toner and cream, my texture was genuinely smoother. This is the first time I have properly responded to a skincare product in five years.”
“I am 63 and my skin has never looked this good. I stopped wearing foundation three months ago. The ingredients make sense when you read what each one does — this is skincare that respects your intelligence rather than dressing up vague claims.”
“The texture is what convinced me. It feels like nothing on the skin but the firmness is real — my jawline at 58 looks tighter than it did at 53. I have tried other prestige creams in this category. This is the first that actually delivers and tells me what is in it.”
“I am sceptical of luxury skincare claims. I bought the serum to test whether the price was justified. It is. The radiance change in the first month is genuinely measurable in photos. I have rebought it twice and added the cream.”
“My dermatologist commented on the improvement at my last visit. I am 51 and just hit menopause. The serum has made the biggest single visible difference of anything in my routine over the past two years. The triple antioxidant defence is the unsung hero.”
Three reasons our customers commit to the treatment.
Formulated in Switzerland
Made in the Swiss canton where many of the world’s most respected luxury skincare houses formulate.
Named Actives
Aurea Caviar Reserve™ brings together ten named actives — sustainably farmed sturgeon caviar, cosmetic-grade gold with Acetyl Heptapeptide-9, Dimethylsilanol Hyaluronate, KOMBUCHKA™, Hydrolyzed Collagen and Milk Protein, Syn®-Coll, Edelweiss, Genépi, Vitamin E, and light reflecting minerals.
Backed by Our Promise
If the Elixir Serum isn’t the treatment your skin has been waiting for, write to us within 30 days and we refund it in full — opened or unopened, with nothing to send back.
Everything you might wonder
about the treatment step.
Most users note a change in radiance and texture within the first 7–14 days. The visible firming and lifting effect — driven by Palmitoyl Tripeptide-5 (Syn®-Coll) within Aurea Caviar Reserve™ — develops over 28–84 days. Twice-daily use is recommended for the full effect.
Two things customers cite when they switch to the Elixir Serum from another prestige caviar serum at this price tier. First, SÉRÈNE discloses the actual ingredient research behind every claim, rather than wrapping the formula in proprietary language alone. Second, the formula brings together ten actives — including Palmitoyl Tripeptide-5 (Syn®-Coll) — at concentrations published by their suppliers, in a single serum at a meaningful fraction of comparable prestige caviar pricing.
Yes. The formula contains no essential oils. Artemisia Genépi is included to calm reactivity. We recommend a 24-hour patch test on the inner forearm.
Yes — alternate days or alternate routines (retinol PM, Elixir AM) work well. For prescription tretinoin, allow the toner to fully absorb (sixty to ninety seconds) before applying tretinoin to minimise sensation, then apply the Serum and Cream once the tretinoin has absorbed.
The serum and the cream are designed as a pair. The serum delivers Aurea Caviar Reserve™ into the skin; the cream then seals the actives in and adds the caviar lipid envelope as the long-wear layer. Apply the serum first, allow sixty seconds for absorption, then follow with the cream. In the morning, finish with SPF.
The Caviar Extract is sourced from sustainably farmed Siberian sturgeon (Acipenser baerii) under European aquaculture standards, CITES Appendix II compliant. The extract is a by-product of the food-grade caviar industry — nothing is harvested specifically for cosmetic use. The serum is cruelty-free and contains no testing on animals.
The 30 ml bottle is calibrated for one user, twice-daily application, lasting approximately sixty days. Two to three drops per application is the prescribed dose; more does not deliver more.
Write to us within thirty days and we refund your purchase in full — opened or unopened, with nothing to send back. If you would rather adjust the ritual first, our Skin Concierge will guide you.
If your skin does not look firmer, more luminous, and visibly more cared for — we refund.
Try the Elixir Serum for thirty days. If it has not earned its place in your ritual, write to us and we refund it in full — opened or unopened, with nothing to send back.
Not certain the Elixir Serum is
right for your skin?
Eight questions for the quiz, or speak directly with our Skin Concierge — complimentary, by appointment.
