Biotech skincare pioneer

BeautyDecoded.

Skincare formulated for your biology

Discover Your Skin
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The science behind it

Reading your biology isn't the hard part anymore. Understanding it is.

Dr. Lukas Žemaitis designed the algorithm that turns your biology into clear decisions for your skin: which functions to support, which ingredients to use, which to leave out. Here he explains how it works, and why BYOSOM starts with you rather than with an ingredient list.

4 min 44 s · Subtitled

“Your skin is not average. Stop treating it like it is.”Dr. Lukas Žemaitis
Role
Chief Science Officer, BYOSOM
Field
Molecular genetics, bioinformatics and genomics
Experience
More than 10 years analyzing and interpreting human genome data
Dr. Jamé Heskett, M.D., in her clinic

Trusted by doctors

“I love how my skin looks and feels with Byosom. Knowing the formulas are matched to my DNA makes it the most thoughtful routine I have used.”
Dr. Jamé Heskett, M.D.Medical Aesthetics & Longevity Medicine · Author of The Well Path · Offers BYOSOM to her patientsDr. Heskett is a compensated BYOSOM partner.

The Science of Youth

No two people age the same way. Biology influences how skin responds to time, environment, hydration, collagen support, and oxidative stress. BYOSOM begins by understanding these biological differences before creating skincare for the individual.

The short answer

What is DNA-based skincare?

DNA-based skincare is skincare formulated from your genetic profile instead of from a questionnaire.

What shapes how skin ages

  • Genetics ~60%
  • Lifestyle & environment

Twin studies

Measured on BYOSOM serum + cream

  • After one use
  • Hydration+50%
  • After 4 weeks
  • Hydration+28%
  • Smoothness+13%
  • Firmness+11%
  • Wrinkle depth−8%

4-week results: independent study, GBA Polska (F/43272/01/26)

The genes we read

Collagen

  • MMP1
  • MMP3
  • COL1A1

Antioxidant defense

  • SOD2
  • GPX1

Hydration & barrier

  • AQP3

12 skin-aging genes in total

BYOSOMQuiz or photo brandsDNA test-only kits
Based on your DNA
Product made for you
Lab analysisVaries
Stays accurate over timeOne-time

Clinical results: GBA Polska, an independent accredited laboratory (Corneometer, Cutometer, Visioscan, Visioline). Group averages; individual results vary. BYOSOM products are cosmetics and do not diagnose or treat disease.

What your skin receives

Six things change when your skincare finally matches your genes.

Every formula is built from your skin-biology report, so each benefit below has a reason behind it. The reason is printed beside it.

12genes3 systems

Three systems decide how your skin ages

MMP1MMP3COL1A1

Firmness and structure: how quickly collagen is broken down, and how much is made.

  • Skin that looks firmer, for longer

    If your collagen genes break structure down quickly, your cream carries the actives that support collagen where you lose it fastest. Firmness is defended at the point it is being lost, not treated on the surface after it has gone.

    MMP1MMP3COL1A1

  • Better defended against sun, pollution and stress

    Your antioxidant genes decide how well your skin neutralizes the free radicals behind spots, dullness and early lines. Where that defense is weaker, your formula supplies it. Damage that would show, shows less.

    SOD2GPX1NQO1CAT

  • Hydration that holds through the day

    If dryness has a genetic cause, moisturizing the surface never solves it. Your cream is built to support the barrier itself, so water stays in the skin, and the tight, dull feeling by afternoon stops being the default.

    AQP3

  • Calm skin, with nothing it doesn't need

    Redness and reactions often come from actives your skin never asked for. Your formula leaves them out. Only what your profile calls for goes in, at a concentration your skin can use, so the routine soothes rather than provokes.

    No unnecessary actives

  • A head start on the signs you haven't seen yet

    Your genes show where your skin is likely to age first, years before it is visible. That lets your routine work on prevention while there is still the most to protect, instead of correction after the fact.

    Early intervention

  • Two products. Two minutes. No more guessing

    Morning and evening, cream and serum, made for you. The trial and error ends, the drawer of half-used products ends, and the money spent on formulas that were never matched to you ends with it.

    One routine, day and night

Your skin-biology report also gives you the ingredients your skin needs and the ones to avoid, plus lifestyle and nutrition notes, so every product decision after this one is easier. Individual results vary. BYOSOM is a cosmetic, not a treatment.

Recognized · Certified · Trusted

Beauty, backed by science.

BYOSOM is a biological skincare company built around understanding the unique biology of the individual. Combining genetic insights, advanced formulation science, and internationally recognized innovation standards, we create skincare formulated for your biology.

4.4/5Excellent on Trustpilot
100%US-based certified labs
180days, then your sample is destroyed
  • CLIA-Certified US Lab
  • Encrypted & Never Sold
  • GINA Protected
  • OECD-Recognized Innovation

OECDDeveloped & validated with leading research institutions

How it works

About 30 days, from your order to your door.

Most of that time is the laboratory reading your sample. Here is every step, how long it takes, and what happens after.

Your part, and ours

2 minYour part. A cheek swab at home, posted back in the prepaid envelope.
≈30 daysOurs. The laboratory reads your sample, then your cream and serum are formulated, made and delivered.
  • Kit ships within one working day
  • Free two-way shipping
≈30days

from order to delivery, typically

  • Kit out and backabout a week
  • Laboratory10-15 business days
  • Formulationup to 3 business days
  • Deliveryup to 2 days
  1. Day 0-3

    Your kit is on its way

    It ships within one working day of your order and arrives within two days.

    BYOSOM · UP TO 3 DAYS
  2. Day 3-7

    Swab, then post it back

    Two sterile cheek swabs, under two minutes, no preparation. Post them in the prepaid, tamper-evident envelope within a day or two, and they reach the laboratory one to two working days later.

    YOU · 2 MINUTES
  3. Day 7-25

    The laboratory reads your sample

    An accredited independent laboratory reads your sample by barcode, never by name, with variant-detection accuracy above 99%. This is the longest part of the wait.

    LAB · 10-15 BUSINESS DAYS
  4. Day 25

    Your report arrives

    The moment the analysis is done, it appears in your account: your true skin type, the genes behind it, the ingredients your skin needs and the ones to avoid.

    BYOSOM · SECURE ACCOUNT PORTAL
  5. Day 25-28

    Your cream and serum are made

    Formulated from your report and produced for you alone.

    BYOSOM · UP TO 3 BUSINESS DAYS
  6. About day 30

    Your set arrives

    Delivered within two days. Your routine starts here.

    YOU · MORNING AND EVENING
  7. With BYOSOM+, every 60 days

    A fresh set, no new test

    Your biology is read once. Each new set is made from the same report, with the serum adjusted as seasons and life change. The cream stays true to your genes.

    BYOSOM+ MEMBERS · PAUSE OR CANCEL ANYTIME

Day counts are typical and in calendar days; exact dates depend on when you post your swab. Working and business days are Monday to Friday.

See it done

The kit, start to finish.

Two swabs, two tubes, one prepaid envelope. About a minute to watch, and you will know exactly what to do when your kit arrives.

1 min 7 s · Narrated

The science

Science at the core.

A biological approach to beauty, grounded in genetic science.

BYOSOM was built around a simple belief: skincare should begin with understanding. By combining biological insights, advanced formulation science, and internationally recognized innovation standards, we create skincare formulated for the individual - not the average consumer.

OECDRecognized under the international OECD / Eurostat innovation standards (Oslo Manual, 2018).

A personalized BYOSOM formula
The BYOSOM set: DNA skin test kit, face cream, face serum and the box they arrive in
2Your skin-biology report6 trait breakdowns · on your phone

What you receive

Everything in the box.

From the first swab to your finished formula - here's exactly what lands on your doorstep.

  1. 1
    DNA swab kitPainless cheek swab
  2. 2
    Biological Skin Profile6 trait breakdowns
  3. 3
    Bespoke formulaBlended for your DNA
  4. 4
    Free shippingPrepaid · two-way
Discover Your Skin

Happy clients

From the people already using it.

Shared on Instagram by clients, and by creator partners who received product or payment, after taking the test and living with their formulas. Tap any story to see it in full.

4.4out of 5 · Excellent
on
18client and creator stories below, shared on Instagram
“Two-week results. Irritated, dehydrated, dull, to calm, hydrated and glowing.”
A client, two weeks in
  • Client before and after photos, two weeks of using BYOSOM, with a five star rating
    Client
  • Creator akayliaart shows her skin before and two weeks after using BYOSOM
    @akayliaart
  • Creator peti_diaries talking to camera about BYOSOM
    @peti_diaries
  • Creator mv.finds talking about her BYOSOM routine
    @mv.finds
  • Creator madison_bissett talking about her personalized formula
    @madison_bissett
  • Creator theemilyedition holding the BYOSOM skin-biology test kit
    @theemilyedition
  • Creator jesschaska talking to camera about BYOSOM
    @jesschaska
  • Creator karinasilverstyle applying her BYOSOM formula
    @karinasilverstyle
  • Creator peti_diaries reacting to the email announcing her results are ready
    @peti_diaries
  • Creator pockowokosara holding the BYOSOM face serum
    @pockowokosara
  • Creator virginiamulatka showing the BYOSOM cream and serum
    @virginiamulatka
  • Creator dahshay filming her BYOSOM delivery arriving
    @dahshay
  • The BYOSOM skin-biology test kit opened, showing two labelled sample tubes
    @akayliaart
  • Creator jgerenaia_victoria filming as she starts her skin-biology test
    @jgerenaia_victoria
  • Creator lexilawson with her BYOSOM skin-biology test kit
    @lexilawson
  • Creator akayliaart holding the BYOSOM face cream and face serum
    @akayliaart
  • Creator karinasilverstyle holding the BYOSOM cream and serum
    @karinasilverstyle
  • Creator skinschema reading the BYOSOM welcome card
    @skinschema

Stories shared publicly on Instagram and reposted with permission. Tap any frame to see the full story. Several come from creator partners, who received product or payment. Photographs are unretouched but individual results vary and are not typical of every client. BYOSOM skincare is a cosmetic, not a treatment.

Ingredient Transparency

Know Exactly What Goes On Your Skin

Every ingredient BYOSOM formulates with is fully disclosed - selected for you according to your biological profile. Tap an active to see what it does.

GHK-Cu · Regeneration

Copper Tripeptide-1

A copper-binding peptide naturally present in human plasma. Supports collagen and elastin synthesis and overall skin remodeling.

See all 68 ingredients

Actives & Peptides

The performance layer - selected and weighted according to your genetic profile.

  • Copper Tripeptide-1
  • Palmitoyl Tripeptide-1
  • Palmitoyl Tripeptide-38
  • Palmitoyl Tetrapeptide-7
  • N-Prolyl Palmitoyl Tripeptide-56 Acetate
  • Acetyl Tetrapeptide-9
  • Acetyl Tetrapeptide-11
  • Niacinamide
  • Alpha-Arbutin
  • Tranexamic Acid

Antioxidants

Support for the same oxidative-stress pathways your SOD2, GPX1, NQO1 and CAT genes govern.

  • Superoxide Dismutase
  • Ubiquinone (CoQ10)
  • Tocopheryl Acetate (Vitamin E)
  • Troxerutin

Ceramides & Barrier Lipids

Skin-identical lipids that rebuild the moisture barrier in the ratio healthy skin uses.

  • Ceramide EOP
  • Ceramide NG
  • Ceramide NP
  • Ceramide AG
  • Ceramide AP
  • Cholesterol
  • Hydrogenated Lecithin
  • Caprylic/Capric Triglyceride
  • Coco-Caprylate/Caprate
  • C15-19 Alkane
  • Cetearyl Alcohol
  • Glyceryl Stearate
  • Hydrogenated Polyfarnesene

Hydrators & Humectants

Water-binding at multiple depths, from surface film to deeper moisture reservoirs.

  • Sodium Hyaluronate
  • Hydrolyzed Sodium Hyaluronate
  • Glycerin
  • Sodium PCA
  • Panthenol (Pro-Vitamin B5)
  • Cassia Angustifolia Seed Polysaccharide
  • Propanediol
  • Butylene Glycol
  • Pentylene Glycol
  • 1,2-Hexanediol
  • 2,3-Butanediol
  • Sodium Lactate
  • Polyglycerin-10

Proteins & Amino Acids

The building blocks collagen is made of, in bioavailable hydrolyzed form.

  • Hydrolyzed Rice Protein
  • Hydrolyzed Pea Protein
  • Hydrolyzed Plukenetia Volubilis Seed Extract
  • Proline
  • Hydroxyproline
  • Glycine

Texture, Stability & Preservation

What keeps a freshly compounded formula stable, safe and pleasant for its full cycle.

  • Water (Aqua)
  • Carbomer
  • Hydroxyethylcellulose
  • Acrylamide/Sodium Acryloyldimethyltaurate Copolymer
  • Hydroxypropyl Starch Phosphate
  • Hydroxypropyl Cyclodextrin
  • Dimethyl Isosorbide
  • Polysorbate 20
  • Polyglyceryl-10 Laurate
  • Sorbitan Oleate
  • Maltodextrin
  • Lactic Acid
  • Sodium Hydroxide
  • Tetrasodium Glutamate Diacetate
  • Phenoxyethanol
  • Ethylhexylglycerin
  • Caprylyl Glycol
  • Benzyl Alcohol
  • Dehydroacetic Acid
  • Sodium Benzoate
  • Potassium Sorbate
  • Fragrance (Parfum)

The full palette from our GBA Polska test reports. Each formula uses a selection of these, weighted to your genetic profile.

Explore the Ingredients

Sample report preview

A glimpse of what you'll receive.

Built around your unique biology.

These biological insights help determine the ingredients, concentrations, and formulation strategy behind your personalized skincare.

The BYOSOM sample report on a laptop: skin hydration, 54%, medium risk
Your skin-biology report is ready
BYOSOM · now

Your biology, in your hands

Your privacy comes first.
It is also what sets us apart.

These are the commitments the process is built on. They are written into how the sample moves, not added afterward.

  • Barcode, not name. Your identity is separated from the sample before it reaches the laboratory and re-linked only by BYOSOM to deliver your results.
  • Only what concerns your skin. We receive the de-identified results for the 12 skin-aging genes. Not your full biological profile. The laboratory receives no health information about you.
  • Never sold, rented or shared. You own your biological data. We act as its custodian, and it does not leave that custody without your explicit consent.
  • Sample destroyed within 180 days. Your physical sample is kept for no more than 180 days after testing, then destroyed, or sooner if you ask. Your digital results stay in your account for as long as it is active, unless you ask us to delete them.
  • Encrypted, audited, monitored. Industry-standard encryption before transmission, access limited to authorized personnel, independent security audits on a regular basis.

From the founder

The future of beauty is not louder formulas or longer routines. It is precision.

For decades, that was the only workable model. Without access to individual biological insight, approximation was efficiency.

But biology has always resisted simplification. Two people of the same age, following identical routines, experience entirely different outcomes - not because one made better choices, but because their biology is fundamentally different.

BYOSOM exists because precision is finally possible. Not louder formulas. Not longer routines. Just skincare that listens to your biology before it acts.

- Tomas Smagarys, Founder · Read the full essay

Before you decide

Frequently Asked Questions

Still deciding?

Write to us at [email protected] and we'll answer your question.

  • Free two-way shipping
  • Your biological data is never sold
What is DNA-based skincare?
DNA-based skincare is skincare formulated from your genetic profile instead of from a questionnaire. BYOSOM reads 12 skin-aging genes from an at-home cheek swab, including MMP1 and MMP3 (collagen breakdown), SOD2 and GPX1 (antioxidant defense), AQP3 (hydration and barrier) and COL1A1 (collagen production), in a CLIA-certified US laboratory. You get 6 personal skin reports 14-21 days after the lab receives your sample, and a face serum and face cream are formulated from your results.
What is DNA testing for skincare?
DNA testing for skincare analyzes specific genetic variants (SNPs - Single Nucleotide Polymorphisms) that influence how your skin functions. BYOSOM examines genes controlling collagen production, antioxidant processing, hydration levels and inflammatory response, then uses that information to create a skincare formulation matched to your biology.
How is BYOSOM different from other personalized skincare companies?
Most "personalized" skincare companies use questionnaires about your current skin condition, and recommend existing products from a catalog. BYOSOM analyzes your actual DNA - the permanent genetic blueprint that determines how your skin ages and responds to ingredients - and compounds a serum and cream specifically from that result.
What genes does BYOSOM analyze?
12 genes governing core skin function, including MMP1 and MMP3 (collagen breakdown rates), SOD2 and GPX1 (antioxidant defense), AQP3 (hydration and barrier function), COL1A1 (collagen production), and NQO1 and CAT (additional antioxidant processing).
How accurate are the results?
Your sample is processed in a CLIA-certified US laboratory using validated genotyping technology, maintaining greater than 99% accuracy for genetic variant detection. Genetics account for approximately 60% of skin aging, with lifestyle and environmental factors accounting for the rest.
How do I collect my DNA sample?
With an at-home cheek swab kit. Collection takes under two minutes, requires no preparation - you do not need to avoid eating or drinking beforehand - and the sample returns to the lab in a prepaid envelope.
How long does testing take?
Typically 14 to 21 business days from when the lab receives your sample: 3-5 days for sample processing, 7-10 days for DNA analysis and 2-3 days for report generation. You receive tracking updates by email and through a secure online portal.
Who owns my genetic data?
You do. BYOSOM acts as a secure custodian and never sells, rents or shares genetic data with third parties without your explicit consent. You can request deletion of your data at any time.
Can insurance companies access my results?
No. The Genetic Information Nondiscrimination Act (GINA) prohibits health insurers from using genetic information to deny coverage or adjust premiums, and prohibits employment discrimination on the same basis.

Questions answered?

Your Skin is unique.

Your skincare should be too.

Discover Your Skin
The BYOSOM set
Discover Your Skin

Your biological data is never sold