She’s coming clean about going gray.

Hilary Duff stressed out over a single silver hair on social media Tuesday, shortly after the 35-year-old “Younger” star celebrated son Luca’s 11th birthday at Disneyland.

“When that gray hair is stronger than the rest,” Duff captioned a scared-looking selfie on her Instagram Story, along with an eye-roll emoji.

The “Lizzie McGuire” star even drew a helpful arrow, pointing out the one hard-to-see gray strand that appeared to have been snipped before growing back even stronger.

For her refreshingly honest post, Duff wore a brown sweater, a black faux fur coat, gold necklaces and hoop earrings.

The Disney alum took Luca (whom she shares with ex-husband Mike Comrie) to the “Happiest Place on Earth” with his friends for the birthday celebrations.

The former teen queen called it “a day for the books,” and shared snaps on Instagram with her husband, musician Matthew Koma, 35, and older daughter Banks Violet Bair, 4. 

The mom of three has been open about getting older.

Duff famously stripped down for the Women’s Health “Body Issue” last year, and spoke about how her physique has changed over the years.

“I’ve gotten to a place of being peaceful with the changes my body has gone through,” the “Why Not” singer said.

“I also want people to know a makeup artist was there putting glow all over my body and someone put me in the most flattering position.”