Values

“Cellis has been 7 years in the making because I refused to compromise. It took time to get the science, the performance and the integrity right.”

Debbie Thomas, Founder

“Cellis has been 7 years in the making because I refused to compromise. It took time to get the science, the performance and the integrity right.”

Debbie Thomas, Founder

Scientific Integrity

Cellis is committed to using well-researched, science-driven formulations that deliver real results. Every product is developed with the highest scientific rigour to ensure efficacy and long-term skin health.

Simplicity & Efficacy

Cellis believes in simplifying skincare without compromising performance. We value streamlined routines that use multi-functional, professional-grade products designed to make caring for your skin effortless yet effective.

Transparency & Honesty

Skincare has become complicated; crowded shelves, conflicting advice and endless “miracle” claims that leave even the most diligent person second-guessing. Cellis exists to make it straightforward again. Built on decades of Debbie’s trusted, face-to-face expertise, we carry the same level of honesty and integrity from clinic to bottle. Our products and promises are grounded in evidence and we’ll always support them with clear communication, education and data. We believe you deserve to know exactly what you’re putting on your skin (and why) so every choice feels informed, confident, and right for you.

93%

agreed that our Everyday Cleansing Gelée left their skin feeling clean, smooth and softer

92%

noticed their skin looked brighter and more radiant after four weeks of using our Everyday C Complex

77%

agreed that after using our Overnight A Complex for 30 days, their skin was left feeling smoother

EMPOWERMENT THROUGH KNOWLEDGE

Knowledge is power, especially when it comes to your skin. We believe that truly understanding your own skin is the most important step in any skin journey. That’s why we share our expertise openly. We simplify the complex, cut through the noise and make it easier to care for your skin with products you can trust. For those who want to go deeper, Debbie’s Digest is where we pass that knowledge forward.

Expert Advice

The 4 Essential Steps for Skinimalists

Sustainability & Responsibility

We make considered choices wherever we can. All Cellis formulas are vegan and cruelty-free, our packaging is recyclable and our larger product sizes help to reduce how often you need to replenish. It’s a continuous process and we’ll keep finding ways to improve while never compromising on the quality or performance your skin deserves.