SKIN JOURNAL · Brand notebook
Circadia: understanding day and night skincare.
A simple introduction to the daily rhythm behind Circadia’s skincare philosophy.
The idea behind the brand
Circadia describes its approach through chronobiology: the study of biological rhythms. Its name refers to the roughly 24-hour cycle, with daytime protection and evening care as the organising idea for its range. This is the brand’s formulation philosophy, not a guarantee for an individual product.
Science and a product are different questions
The company traces its approach to the work of Dr Peter T. Pugliese. When reading a product claim, distinguish the explanation of how skin works from evidence about that particular finished formula. A scientific ingredient story alone does not establish the results you will see.
Make the routine understandable
Ask your practitioner what each proposed morning or evening step is for and how it fits your existing products. A routine should be clear enough to follow consistently.
Read the sources
- Manufacturer informationCircadia: Circadian rhythm-based skincare (opens in a new tab)
- Manufacturer informationCircadia: The science behind the brand (opens in a new tab)
Written as a general educational summary. It is not a diagnosis or a personalised treatment recommendation. External sources may change after the date shown above.