Description
Test in the Comfort of Your Home
Collect.
Adhere a non-invasive adhesive to your skin.
Mix.
Add a few drops of reaction liquid.
Scan.
Take a photo with our web app for immediate results.
Go beyond your birth age
Discover Your Skin's Real Age
Instantly measure your skin’s true biological age and aging velocity using real molecular biomarkers — revealing what your skin’s appearance can’t tell you.
Truly Actionable Results
An Instant Report to Upgrade Your Regimen
Your analysis reveals your skin’s biological age profile, then recommends the most effective products and regimen. Your instant report will include:
- Your biological skin age
- Your aging velocity versus birth age
- How you compare to your age group
- How you compare to total population
- Hydration, antioxidation, and elasticity benchmarks
- Specific regimen suggestions
- Exact product recommendations
No tedious questionnaire. No download necessary. Just your mobile browser.




From bio signals to measurable age
How It Works
The adhesive included in the kit collects biomolecules produced by your skin cells. The test then reads their biomarkers that control and regulate your skin's aging, then calculates a Skin Epigenetic Hydroxylation Incompetence (SEHI) score showing how your skin is aging. A higher score means faster aging and vice versa—so you can understand, track, and improve your skin’s health over time.
Hear It From Your peers
What Others Are Saying
This is one of the most unique products I’ve ever tried. I loved how it gave me a snapshot of my skin’s true health, not just how it looks in the mirror. It’s simple, informative, and fun to use. I’d recommend it to anyone who cares about aging well.
This kit gave me such a clear view of how my skin is aging. I learned that my skin is aging a bit faster than average, which helped me make changes in my routine. The report that came with the results gave me tips that actually felt personalized, not generic advice.
Everything about this test was simple and clear. I liked that I could see my results instantly in the app. It also showed my aging speed, which was interesting. I’ve started adjusting my skincare based on that and already notice a difference in how my skin feels.
I didn’t expect the test to be this simple. The instructions were clear and I got my results in minutes. It told me my skin was a little older than my age, which motivated me to drink more water and use my serum consistently. I retested two month later and saw improvement, so I’m convinced it works.
Frequently Asked Questions
What is biological skin age?
Your biological skin age reflects the true condition of your skin cells, collagen, hydration, and repair capacity—not just the number of candles on your cake. While your chronological age moves at a steady pace, your biological skin age can speed up or slow down depending on epigenetics, lifestyle, and skincare choices. Understanding this age—and whether you’re experiencing accelerated skin aging—is the key to building skincare that truly works for you.
What is the major advantage of using the rapid Skin Aging Self-Test?
The rapid Skin Aging Self-Test uses noninvasive sampling and smart molecular analysis to evaluate your skin’s epigenetic health—essentially reading your Skin Epigenetic Hydroxylation Incompetence (SEHI) score, which reflects how your skin is aging at the biological level. No special equipment is needed. This affordable test can be performed by yourself in the comfort of your own home, and allows you to discover your true biological skin age in just 5 minutes. It helps you select the best-suited, age-segmented skincare products. The Skin Age Self-Test is comparable to—or even superior to—the gold-standard DNAm Age assay (an epigenetic assay with potential clinical applications), as it is built on functional demethylation downstream effectors, not static methylation markers.
What is the scientific basis of the test?
The rapid Skin Aging Self-Test measures your skin’s epigenetic health through noninvasive sampling and molecular analysis of the SEHI (Skin Epigenetic Hydroxylation Incompetence) score. SEHI reflects your skin’s declining ability to maintain proper DNA hydroxylation and epigenetic balance.
In simpler terms, it measures how efficiently your skin cells can “reset” themselves after exposure to stressors such as UV light, pollution, or lifestyle habits. When this function weakens, your biological skin age begins to accelerate—resulting in visible signs of aging like dryness, loss of elasticity, uneven tone, and wrinkles beyond your actual years.
What information will I learn from this test?
After testing, you will receive the following insights:
- Your Skin Age or Biological Age Segment – how biologically old your skin behaves
- Your Accelerated Aging Level – how fast your skin is aging compared to healthy norms
- Your Aging-Associated Skin Quality – how well your skin maintains hydration, elasticity, and antioxidation
These results help you understand whether your skin is aging at a healthy pace or in a “fast-aging” mode that needs urgent correction.
Why should I regularly check my skin age status?
Regularly checking your skin age reveals how fast your skin is truly aging—beyond what you can see in the mirror. It helps you detect early changes, adjust skincare effectively, and track real improvements. With SEHI-based skin age testing, you can manage—not guess—your biological aging and care for your skin in the most suitable way to help keep it youthful longer.
Why is this test the best tool to help reset your skin to a healthy aging pace?
In the world of skincare, one-size-fits-all solutions no longer make sense. Your skin’s needs are unique—not only because of your chronological age, but also because your biological skin age and accelerated aging level evolve over time. The SEHI-based skin aging self-test is revolutionizing how we understand, track, and care for our skin—helping you move beyond guesswork into true personalization. Knowing your SEHI-based skin age transforms how you choose skincare. Instead of relying on marketing claims or generic “anti-aging” labels, you can select products precisely targeted to your biological needs. If your SEHI score shows early-stage imbalance, you may only need antioxidant or barrier-strengthening care. If your score indicates deep hydroxylation dysfunction, GTA (Golden Triple Actives) age-segmented skincare products from Idunn’s Apple—which reactivate epigenetic hydroxylation—can help reset your skin to a healthy aging pace.
Already Know Your Skin Age?
Shop by Your Skin Age
Silent Signs Stage (minor SEHI). Goals: slow visible aging through antioxidant protection, balance hydration, and maintain skin smoothness and elasticity.
Rejuvenating Cleanser
Age-Defying Serum
Age-Defying Day Lotion
Age-Defying Night Cream
Longevity System I – Early Intervention (Under 45)
Initial Signs Stage (gradually increased SEHI). Goals: preserve firmness by enhancing antioxidant defense and maintaining moisture retention.
Rejuvenating Cleanser
Even-Tone Antioxidant Serum
Age-Defying Day Lotion
Age-Defying Night Cream
Longevity System II – Firmness Reinforcement (45-49)
Active Aging Stage (moderately expressed SEHI). Goals: improve elasticity by intensifying antioxidant defense, increase cell repair, and sustain hydration.
Rejuvenating Cleanser
Even-Tone Antioxidant Serum
Age-Defying Day Lotion
Radiant Cell Repair Cream
Longevity System III – Active Repair (50-54)
Visible Structure-Loss Stage (highly expressed SEHI). Goals: rebuild dermal density and resilience by boosting hydration and cell repair while maintaining antioxidant defense.
Rejuvenating Cleanser
Dermal Quench Hydration Serum
Even-Tone Antioxidant Lotion
Radiant Cell Repair Cream
Longevity System IV – Deep Rebuild (55-59)
Functional Aging Stage (severe SEHI). Goals: reactivate cellular renewal, enhance microcirculation, restore vitality and tone through deep hydration, anti-wrinkle care, and antioxidant protection.
Rejuvenating Cleanser
Dermal Quench Hydration Serum
Even-Tone Antioxidant Lotion
Hydro Lift Anti-Wrinkle Cream
Longevity System V – Advanced Renewal (60-64)
Significant Signs Stage (critical SEHI). Goals: support structure preservation and prevent further decline via intensive cell repair, anti-wrinkle action, deep hydration, and antioxidant/dark spot defense.
Rejuvenating Cleanser
Eternal Boost Anti-Wrinkle Serum
Even-Tone Antioxidant Lotion
Hydro Lift Anti-Wrinkle Cream
Inside the Lab
Insights From Our Scientists
Citations:
- Sin SH et al: Skin aging from mechanisms to interventions: focusing on dermal aging. Front Physiol, 2023.
- Shen X et al: Nonlinear dynamics of multi-omics profiles during human aging. Nature Aging, 2024.
- Ding Y et al: Comprehensive human proteome profiles across a 50-year lifespan reveal aging trajectories and signatures. Cell, 2025.
- Horvath S et al: Epigenetic clock for skin and blood cells applied to Hutchinson Gilford Progeria Syndrome and ex vivo studies. 2018.
- Boroni M et al: Highly accurate skin-specific methylome analysis algorithm as a platform to screen and validate therapeutics for healthy aging. Clin Epigenetics, 2020.







This is one of the most unique products I’ve ever tried. I loved how it gave me a snapshot of my skin’s true health, not just how it looks in the mirror. It’s simple, informative, and fun to use. I’d recommend it to anyone who cares about aging well.
This kit gave me such a clear view of how my skin is aging. I learned that my skin is aging a bit faster than average, which helped me make changes in my routine. The report that came with the results gave me tips that actually felt personalized, not generic advice.
Everything about this test was simple and clear. I liked that I could see my results instantly in the app. It also showed my aging speed, which was interesting. I’ve started adjusting my skincare based on that and already notice a difference in how my skin feels.
The analysis from this test was super helpful. It showed me that my skin was dehydrated even though it didn’t look dry. After switching to a better moisturizer, I noticed a difference within a week.
I didn’t expect the test to be this simple. The instructions were clear and I got my results in minutes. It told me my skin was a little older than my age, which motivated me to drink more water and use my serum consistently. I retested two month later and saw improvement, so I’m convinced it works.