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Have you ever loved a product so much that you basically become the brand’s unofficial spokesperson?

Reese Witherspoon on a green and pink background

Getty Images/Clara Hendler

She’s been layering it over the brand’sSqualane + Omega Repair Cream.

It’s a long commitment, but apparently these two just really hit it off.

“It’s so important that it makes you feel good and like you’re investing in yourself.”

light pink bottle of Biossance Squalane + Vitamin C Rose Oil on white background

Courtesy of brand

And if Biossance wasn’t charming already, it most definitely is now with Witherspoon on its team.

More on celebrity beauty-brand ambassadors:

Now check out Alicia Keys’s 10-minute routine:

Biossance Squalane + Omega Repair Cream on white background

Reese Witherspoon wearing a robe and holding up a bottle of Biossance Rose Oil

Courtesy of brand