The Science of Skin Longevity
At Idunn’s Apple, our team brings years of advanced epigenetic research to the forefront of skincare innovation. Founded by researchers with award-winning experience recognized by brands like Johnson & Johnson, we bridge biotechnology and luxury skincare to reveal your true biological skin age and design products that target aging at its molecular roots. Powered by our proprietary GTA™ (Golden Triple Actives) complex and guided by measurable science, our formulations are crafted to enhance skin longevity and restore youthful function. Made in New York with Nordic-inspired cleanliness, Idunn’s Apple turns scientific precision into timeless skin.
A Mission to Renew Youth
For years, I took pride in having smooth, resilient skin and believed that consistent care was enough to preserve the glow. But after entering my 50s, everything began to shift. My skin lost its youthful vitality, developed uneven tone, and no longer responded to even the most premium products. It was discouraging to realize that the skincare I thought I had trusted for years was not keeping up with my changing biology.
As the co-founder of a biotechnology company, I had a front-row seat to how scientific innovation could solve problems that once seemed impossible. When I shared my frustrations with my scientific co-founder, we began exploring the biological mechanisms of skin aging. Not just its appearance, but its underlying molecular drivers. That collaboration led to something extraordinary: the first at-home skin aging self-test capable of measuring how fast or slow your skin is truly aging.
Seeing my own test results was eye-opening. My skin was aging faster than expected, but it also proved that we could measure and track biological change over time. During years of our research and development stage, we tested a series of experimental formulations designed to target the molecular root of aging. After continuous application of one particular formulation on my skin, follow-up testing revealed something remarkable: my skin's biological age had slowed, then reversed.
That breakthrough led to the refinement of our Golden Triple Actives (GTA™) complex, the foundation of Idunn’s Apple. What began as scientific validation became a skincare line that anyone can now use to restore and extend skin longevity.
Sincerely,
Jessica
Co-Founder
It Begins With Actual Science
Our innovation centers around the study of skin epigenetics — how molecular mechanisms control the activation of youth-preserving genes. Over time, these processes decline through SEHI (Skin Epigenetic Hydroxylation Incompetence), a breakthrough discovery of biological slowdown that prevents the skin from properly reactivating its defense and renewal functions.
To address this, we developed the world’s first at-home biological skin aging self-test, simplified for the everyday user to measures the rate of SEHI-driven aging in real time. By revealing your skin's biological age and its degree of accelerated or delayed aging, the test allows us to recommend regimens precisely optimized to your skin’s biological state.
Our patent-pending GTA™ (Golden Triple Actives) formulated products work to counteract SEHI by restoring hydroxylation competence and reawakening dormant youth-protective pathways. This creates measurable, visible improvement — not only in appearance, but in the biological age of your skin itself.