The Story
of Circadia
The Story
of Circadia
From Curiosity to a Global Professional Movement
From Cellular Research to Skin Care
In 1973, our founder, Dr. Peter T. Pugliese was focused on cancer research and cellular biology. Skincare was not his field. But when his wife asked for help with a small wrinkle near her eye, he took a closer look.
He began studying the skin, not just what it looks like, but how it truly functions at a cellular level. What started as curiosity quickly became a lifelong pursuit. Understanding the skin at a deeper level, Dr. Pugliese pursued lasting results.
That knowledge would go on to shape the entire professional skincare industry. Chances are, you used his textbook in esthetics school.
A Pioneer in Skin Science and Education
At a time when the esthetics industry was still developing, Dr. Pugliese helped define it.
He was one of the first voices to connect clinical science and professional skincare. His work focused on teaching estheticians not just what to use, but why it works.
For over 40 years, he educated professionals around the world. He wrote key textbooks and contributed to industry publications. He also helped introduce key ingredients and concepts that are now standard in skincare.
His philosophy was simple. Understanding the skin leads to better treatment decisions. Better decisions lead to better outcomes.

The Foundation: Skin in Rhythm
Through his research, Dr. Pugliese identified a core truth about the skin:
It does not function the same way all day.
During the day, the skin focuses on protection. It defends against environmental stressors like UV exposure and pollution.
At night, the skin shifts. It moves into repair, renewal, and regeneration.
This natural cycle is known as the skin’s circadian rhythm.
This concept became the driving force behind Circadia’s formulas.
The name itself comes from the Latin circa diem, meaning “around the day.” It reflects a philosophy rooted in timing, biology, and alignment.
Circadia works with the skin’s natural processes instead of forcing results.

The Creation of Circadia
By the late 1990s, Dr. Pugliese had influenced thousands of professionals through education. This training opened a growing need.
Estheticians wanted products that matched what they were learning. They wanted science-based formulations made for real use in the treatment room.
Circadia was officially founded in 2001 by Dr. Pugliese. From the start, the brand chose to focus on one thing: Circadia would serve professionals.
- It would remain wholesale only
- The brand would not sell directly to consumers
- It would support the esthetician

A Family Legacy That Continues to Grow
As the brand grew, Dr. Pugliese’s family became deeply involved. His grandson, Michael Q. Pugliese, began learning the business early. He worked in every part of the company, from operations to formulation.
Under Dr. Pugliese’s guidance, he gained scientific knowledge. He developed a deep respect for the professional community.
In 2006, Michael stepped into the role of CEO.
With that transition came growth, expansion, and innovation—but the foundation remained unchanged.
The mission stayed the same:
- Support the professional
- Lead with education
- Deliver real results

The Creation of Circadia
By the late 1990s, Dr. Pugliese had influenced thousands of professionals through education. This training opened a growing need.
Estheticians wanted products that matched what they were learning. They wanted science-based formulations made for real use in the treatment room.
Circadia was officially founded in 2001 by Dr. Pugliese. From the start, the brand chose to focus on one thing: Circadia would serve professionals.
- It would remain wholesale only
- The brand would not sell directly to consumers
- It would support the esthetician
The Creation of Circadia
By the late 1990s, Dr. Pugliese had influenced thousands of professionals through education. This training opened a growing need.
Estheticians wanted products that matched what they were learning. They wanted science-based formulations made for real use in the treatment room.
Circadia was officially founded in 2001 by Dr. Pugliese. From the start, the brand chose to focus on one thing: Circadia would serve professionals.
- It would remain wholesale only
- The brand would not sell directly to consumers
- It would support the esthetician
From Roots to
Global Reach
What began as one physician’s curiosity has grown into a global professional brand.
Today, skincare professionals around the world trust Circadia. The brand continues to expand while staying grounded in its original purpose.
It remains committed to:
- Scientific integrity
- Distribution limited to professionals only
- Education-first support
- Long-term partnerships

The Legacy Continues
New products, technologies, and education all build on the foundation Dr. Pugliese created.
His work continues to influence how professionals approach skincare today. His legacy lives on in every treatment and every esthetician who learns and grows.

Be A Part of
Circadia’s Story
Circadia was built for the skincare professional.
Its history is rooted in science, education, and respect for the esthetician. Its future is built on continuing that mission with professionals like you.
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