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Bare Duo
Bare Duo
Bare Duo — Renewal + Clarity Serums — VyVa
Bare Duo
Bare Duo
Cellular Clarity Serum — VyVa
Bare Duo
Cellular Renewal Serum — VyVa
Bare Duo
Full INCI published, both bottles30 ml each — roughly two monthsFormulated in FranceContains fish and soy — stated before you buy
BARE DUO · TWO SERUMS · MORNING AND NIGHTSwiss actives — Mibelle AG · every dose printed

There are two reasons we reach for concealer. This is both of them.

Uneven tone, and skin that looks tired. Two different problems, two different actives, one routine — Cellular Clarity in the morning, Cellular Renewal at night. Made to be worn bare.

4%Delentigo™ — its studied concentration
2%MossCellTec™ No. 1, in both bottles
−26%spot pigment at 8 weeks
0proprietary complexes

One price, from day one until you cancel.

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60-day refund — opened or not, nothing to send back · Free US shipping · Full ingredient list on both

  • Two serums, one goal — Renewal for firmness, Clarity for tone
  • Delentigo™ at 4% by day, polynucleotides at 5% by night — every dose printed
  • Lightweight and layer-friendly — full INCI published on both, patch test first
  • Morning or night — lightweight, fast-absorbing, fits any routine
Swiss actives — Mibelle AGPhytoCellTec™ — patented by Mibelle in five countriesEvery dose printed on the page60-day refund — opened or not, nothing to send back

One in the morning. One at night.

Morning

Cellular Clarity, after cleansing, before moisturiser. Then sunscreen, always.

Night

Cellular Renewal, after cleansing, before moisturiser.

Bare

Lightweight and layer-friendly. Made to be worn bare — makeup optional.

One habit, two causes.

Cellular Clarity serum
01 · Morning

Cellular Clarity

Every brightener makes the spot lighter. This one closes the gap. One dosed pigment route rather than four at a fraction of a percent each: Delentigo™ Swiss garden-cress sprout extract at 4%, the concentration its maker's age-spot studies used. Vitamin C ester, kojic acid and arbutin are in the bottle as base conditioners — named on the label, claimed nowhere.

Delentigo™ 4%MossCellTec™ 2%Full INCI published

Contains soy · 0.34% alcohol. Vegan.

Cellular Renewal serum
02 · Night

Cellular Renewal

For skin that looks rested and full rather than thin and tired. Salmon-derived polynucleotides at 5% — the maximum concentration their supplier has tested — with MossCellTec™ No. 1 at its studied 2%, and PhytoCellTec™ Swiss apple fruit cell culture at 1% against a 2% study, which we print rather than round away.

Salmon DNA 5%MossCellTec™ 2%PhytoCellTec™ 1%BiotinHA

Contains fish. Not suitable for vegans or anyone with a fish allergy.

Most people reaching for concealer are covering marks that won't fade, or a face that looks tired regardless of how it slept. They look like the same problem in the mirror. They aren't — so this is two serums rather than one bottle claiming to do everything.

A woman in profile, bare skin
Why your last serum did not work

Your age spots are not one pigment. They are two.

If you have tried a brightener and the spot came back, this is probably why. Most of them address one of the two pigments in an age spot, and they do it everywhere, not just where the spot is.

The pigment from sun

Melanin

Your skin makes it in response to UV light. It is the brown pigment most brighteners are built to target, but they do it everywhere they are applied, not just where the spot is.

The pigment from time

Lipofuscin

A wear-and-tear pigment that builds up inside skin cells over decades. It gives age spots their golden undertone, and almost no brightener on the shelf is formulated to address it.

Delentigo works mainly where the spot is. Most brighteners work everywhere they touch. In its maker's eight-week study the treated spots fell 26% while the skin around them moved 16.5% — which is the difference between fading a spot and fading the skin around it.

Age spots contain both melanin and lipofuscin, well-documented in dermatological literature. The claim that Delentigo works mainly where the spot is is based on Mibelle Biochemistry's research into the ingredient, supplier research, not independent trials, and not trials of the finished VyVa serum.

WHERE THESE ACTUALLY COME FROM

Two Swiss actives. You can see what they are made of.

The research belongs to the ingredients and was run by Mibelle Biochemistry, their Swiss maker — supplier research, not independent trials, and not trials of these finished serums.

Garden cress — Delentigo™
Garden cress — Delentigo™ The sprouts are garden cress. They are the source of Delentigo™, in Cellular Clarity at 4% — the same concentration Mibelle used in both of its age-spot studies.
Swiss apple — PhytoCellTec™
Swiss apple — PhytoCellTec™ A Swiss cultivar whose cells are grown in culture rather than picked. That is PhytoCellTec™, in Cellular Renewal, at 1% against a 2% study — the one number here that does not flatter us, printed anyway. The clinical weight in that bottle is carried by MossCellTec™ at 2% and the polynucleotide complex at 5%.
MOSSCELLTEC™ NO. 1 · 2% · IN BOTH SERUMS

Both carry MossCellTec™. At 2%.

A Swiss moss cell culture grown in a photobioreactor — no field, no crop, no season. Moss survives what would kill a garden, and the active is built around that idea: skin that keeps up with change rather than skin being corrected.

In the most punishing test in its file — 23 women through a Seoul summer, moving between outdoor heat and dry air-conditioned offices — every one of the 23 recorded a significant increase in skin hydration on the treated side within 14 days, and 91% recorded lower water loss. That is a responder rate inside one clinical cohort, not a guarantee.

Included at the level its maker recommends, not a dusting. In both bottles.

Photobioreactor-grown No field, no crop, no season.
2% — its studied level, exactly Measured against placebo over 28 days, the appearance of crow's-feet wrinkle depth fell 15%.
In both serums Cellular Clarity and Cellular Renewal alike.
WHAT ACTUALLY CHANGES

What the research measured, and when.

These are the results the ingredient makers measured, at the concentrations we use. Skin is individual and we will not give you a date — but this is the timescale the research ran on.

RowWeek 2Week 4Week 8
Morning · Delentigo™ 4% — closing the gap between the spot and your skin Not measured −6.2% melanin index of treated spots, vs placebo −26% pigment reading in treated spots against 16.5% in the skin around them — contrast gap closed by roughly half
Night · crow's-feet — where it creases when you smile −8% wrinkle depth (PhytoCellTec™; that study ran at 2%, this serum carries 1%) −15% wrinkle depth (PhytoCellTec™, same study) · −15% vs placebo from MossCellTec™ at its studied 2% Not measured
Both bottles · MossCellTec™ No. 1 at 2% — skin that copes Hydration up in 100% of volunteers and water loss down in 91%, measured at 14 days Not measured Not measured

Mibelle Biochemistry's own research into these ingredients — supplier research, not independent trials, and not trials of the finished VyVa serums. Blank cells mean nothing was measured at that point, not that nothing happened.

Cellular Renewal and Cellular Clarity serums with their cartons on stone

What you actually get

Two full-size serums. Two named actives.

Cellular Renewal for the appearance of firmness and skin quality. Cellular Clarity for the appearance of even tone. Contains soy — and a fish-derived ingredient in Renewal. Both stated before you buy.

Most brands name the ingredient. We match the dose.

RowCellular ClarityCellular Renewal
Key active Delentigo™ at 4% Salmon polynucleotides at 5% · MossCellTec™ at 2% · PhytoCellTec™ at 1%
Its study used 4% — match 5% is the supplier's maximum tested and MossCellTec matches at 2%; PhytoCellTec's study ran at 2% and ours is 1% — printed, not rounded awaythe number we're fixing next
Also in the bottle MossCellTec™ No. 1 at 2% — the maker's level same
What we claim Appearance of even tone — the spot fades, the skin around it does not Appearance of firmness and skin quality
Allergens, stated upfront Soy Fish — not vegan

The research belongs to the ingredients and was run by Mibelle Biochemistry, their Swiss maker — supplier research, not independent trials, and not trials of these finished serums. One number here does not flatter us. It is printed anyway.

Things we decided not to do.

  • No before-and-after photographs. Shot in different light, they prove nothing.
  • No promise of when you'll notice something. Nobody can honestly give you a date.
  • No reviews yet. When we have real customers we'll publish what they actually said.
  • No hiding the awkward ingredient. Cellular Renewal contains salmon-derived DNA. It is not vegan, and it says so here rather than in the small print.
  • No proprietary complexes. Named actives, full list published.

FAQ

Why not just one serum?
Because tone and the look of tiredness need different actives. One bottle claiming both is one bottle doing neither properly.
Is Renewal vegan?
No. It contains salmon-derived DNA. Cellular Clarity is vegan.
How long does each bottle last?
30 ml each. Used as directed, both bottles cover roughly a two-month routine.
When will I see something?
No date. Anyone who gives you one is guessing.
Will it lighten my whole face?
No — and that is the entire point. Most brighteners act everywhere they are applied, which is why the spot fades and the skin around it fades with it. In Delentigo™'s eight-week study the pigment reading in treated spots fell 26% while the normally pigmented skin around them moved 16.5%, closing the visible contrast between the two by roughly half.
Woman in a robe holding a VyVa serum beside the Bare Duo cartons

The Bare Duo

Made to be worn bare.

Two serums, two jobs — every concentration published.

Cellular Renewal and Cellular Clarity serums with their cartons
THE GUARANTEE

Sixty days. Then decide.

Try both for two months. Not for you? Tell us and we'll refund it in full. Keep the products — there's nothing to send back. Sixty days is a refund window, not a results window.

Contains fish and soy. Patch test 48 hours before first use.

60-day refund — opened or not, nothing to send back · Free US shipping · Full ingredient list on both