Brooke Shields A Hollywood icon for many reasons, but her thick eyebrows are definitely her signature feature. A few months ago, the model and actress, 59, shared her 10-minute beauty routine with her Mohan, And as a group that's always on the go, we were curious to hear about the products she uses. Unsurprisingly, Shields' biggest beauty hacks include items from her own hair care line, Commons, formulated for women over 40, and she relies on highlighters and minimal makeup to create a fresh, edgy everyday look. However, we were surprised to discover that Suddenly Susan Stars also use viral grandebro Brow Booster Serum as part of her daily routine.

After you mention using a brow-enhancing serum at night, Shields says she likes to "brush my brows a bit rather than do too much with a pencil." She adds that she uses the serum to help keep her brows in place and "it helps them grow"—which we can all get behind for our own quick get-ready routines!

shop Grand Brow Brow Enhancing Serum for $38 At Amazon!

While Shields could easily hold on to the fact that she can achieve her enviably thick brows using this product, she's hardly alone in loving the follicle-boosting serum. Made by the same brand responsible for cult-favorites GrandeLASH-MD Lash Enhancing Serum (which has 50,000+ reviews), GrandeBROW Serum is packed with ingredients to help get the most out of your brows. Whether you've overplucked or are experiencing age-related brow damage, the blend of hyaluronic and amino acids conditions the hair while the serum supports growth. Although it takes up to four months to see full benefits, improvements are visible within weeks.

You don't just have to take our word for it, either — the before-and-after photos are seriously impressive!

a buyer raves“I can't believe I'm getting my eyebrows back at 63! After overplucking in the 80s, my eyebrows were non-existent. I heard about this product on a podcast. Be patient - it takes months to get results. But hey, after 45 years with smippy eyebrows, it's worth the wait!”

"I'm 53, menopause in full swing, my eyebrows are receding every month," said another 5-star reviewerThose who submitted before and after photos. “I have used the Anastasia Brow Serum for a year. It barely did one thing, so I stopped about eight or nine months ago. It's a tube worth growing. They're not great - but to me, they feel like a Brooke Shields brow-back throw-back! Photos don't really do them justice."

If your brows have seen fuller days, shop Shields' selection to restore them! Nothing to lose but sparse eyebrows!

shop Grand Brow Brow Enhancing Serum for $38 At Amazon!