# How to animate the particle hair size?

I have made a sphere and assigned a hair particle system. I'd like to scale the hair particles in one area when higher than that of another area and would like to animate that too.

Q: How to animate the particle hair size?

• U can animate particle size by hitting i key in the scale input box Dec 6, 2020 at 5:43

In your particle settings, under "Render" right-click on "Scale" and choose insert keyframe. Alternatively, you can click on the small dot right to the box.