20+ Years in Skin: What Debbie Has Learned That Will Change Your Routine

Debbie Thomas’ journey through the world of skincare began in the clinic, treating complex skin conditions with precision technology and science-backed products. Over the past 20 years, she’s seen it all—from high-maintenance routines that do more harm than good, to clients confused by marketing jargon and overwhelmed by choice.

Her takeaway? The healthiest skin isn’t born from chasing trends or switching serums every few weeks. It’s built on daily, deliberate care using well-formulated products that respect skin biology.

Debbie also learned that skin issues are rarely one-dimensional. Acne, sensitivity, pigmentation—these often stem from deeper imbalances in barrier function or inflammation. Her answer was to create formulations that are multi-targeted, rooted in clinical science, and free from fluff.

This wisdom is embedded in Cellis. Each formula reflects her commitment to elegant simplicity: potent actives delivered in just the right dose, layered intelligently to amplify efficacy. Her focus on skin health over short-term “glow” ensures results that are not just visible—but lasting.

If you’ve ever felt overwhelmed by skincare, Debbie’s philosophy offers a reset. Cellis isn’t just a product line—it’s a reflection of decades of knowledge distilled into four powerful, purposeful steps. It’s the skin revolution you’ve been waiting for.