What is another word for intrinsic regulation?

There isn't a single perfect synonym for "intrinsic regulation," as its meaning depends on the context. However, here are some alternatives based on different interpretations:

Focusing on internal control:

* Self-regulation

* Autoregulation

* Homeostasis (if referring to biological processes)

* Internal control

* Inherent regulation

Focusing on inherent nature:

* Natural regulation

* Innate regulation

* Organic regulation

Focusing on a specific process:

* Feedback loop (if referring to a cyclical process of self-adjustment)

* Adaptive mechanism (if referring to a process that adjusts to changes in the environment)

The best alternative will depend on the specific context and what aspect of "intrinsic regulation" you want to emphasize.