MISSION
To use principles of epigenetics science so that how we age becomes a choice, not a fate. This is the line our work is measured against. Every formula, every test, every decision in the laboratory comes back to it. If a product does not give the skin more agency over how it ages, it does not leave our laboratory.
PURPOSE
Skin Diligent exists to give people the right to age on their own terms.
The skincare industry has long told women two things about aging: that it is something to fight, and something to fear. Skin Diligent rejects both. Aging is universal. The question is not whether - it is how. And science now means that answer can be a choice about how we decided to do so.
THREE CORE COMMITMENTS
Hormone Disruption Testing: Every finished formula tested for hormone disruption
Epigenetic Science Inspired Formulation: Developed with biologists, biochemists, longevity scientists, ethnobotanists & dermatologists. Clinically tested & every claim is substantiated by peer-reviewed science.
Better not more: A small, multifunctional range where each product earns its place. A serum that hydrates and protects. A treatment that corrects and renews. A small range of considered products outperforms a large one of single-purpose formulas.
SKIN DILIGENT STANDARD
Clean Formulation: Simple, effective formulas. Clinically tested for safety and results.
Ingredient transparency: Claims substantiated and backed by peer-reviewed science. No marketing without mechanism.
Supply chain ethics: Direct sourcing from cooperatives; no middlemen; agro-ecological farming
Sustainable Packaging: We use cold emulsion technology which reduces energy use by a factor of 100 (from 40kWh to 0.4kWh per batch). Packaging is made with 50–80% PCR plastic.
Tule Park and Didier Magné don’t come from the Beauty industry – that contradiction is why Skin Diligent exists. Coming from outside the industry meant no inherited assumptions. Five years of R&D followed before a single product launched.
Two Questions That Started It All
When Tule’s mother was diagnosed with Parkinson’s, Tule read deeply into the gut-brain connection — and discovered a new science proving nothing in the body is an isolated silo. The gut, the brain, the skin: all connected.
When her teenage daughter was prescribed antibiotics then hormonal contraception for mild acne, Tule refused. She wanted to understand what was actually happening — and found that skincare was treating skin as a separate organ, while science was proving the opposite.
