The Big Bang Theory starlet looked focused as she made her way to the pampering session on Sunday, Dec. 29 in Los Angeles.
Cuoco was casual while she ran the beauty errand, sporting a black sweater, black leggings, pink flop flops and showed her team loyalty to the Boston Red Sox.
The day before, the 28-year-old actress was spotted out and about with her 26-year-old beau. The adorable couple wrapped their arms around each other while enjoying a lunch date at California Pizza Kitchen.
Looks like these lovebirds root for two different baseball teams!
On the same day, the blond beauty gushed over her handsome athlete fiancé by sharing a sweet pic of a "I love RS" mug on her Instagram account.
The duo recently enjoyed their first successful Christmas together and if you ask Cuoco, they "killed it."
"1st Christmas together! Killed it! @ryansweething," Cuoco captioned the delightful pic on her Instagram account.
The engaged pair is standing together in a kitchen, while holding glasses of wine. Cuoco is making her best—and slightly comical—"killed it" face, while Sweeting is grinning widely.