If you’ve been paying attention (which I know you have—she is mother, after all), you’ve probably noticed that Taylor Swift’s hair has been looking impeccable lately. It’s long, shiny, full, and as healthy as can be. I’ve been theorizing for a few months why this could be: For starters, the “Bleachella” days are over (RIP), and Tay’s hair seemingly hasn’t taken an intense bleaching in months, hence her hair’s length and supreme health. And sure, she’s heat-styling a few nights a week, but when she’s off the Eras Tour, chillin’ with Travis Kelce and friends, she’s keeping things natural.

preview for Ryan Reynolds and Blake Lively's relationship timeline

But! My entire stance on Taylor’s hair changed this week when I discovered her bestie Blake Lively launched a new haircare line, Blake Brown Beauty. Immediately, I speculated: Is Taylor Swift’s hair looking fantastic because she’s been using Blake Brown Beauty? Maybe!!!

Blake Brown’s whole philosophy is a combination of strengthening and nourishing. “My hair completely changed when I started using the strengthening system—which fortifies and strengthens your hair, but if you only use strengthening, with all that protein, it becomes brittle, and it snaps,” Blake explained at the launch event for the brand. “So then you have to use the nourishing system, which provides elasticity and softness, but if you only use that, it overstretches and snaps,” she adds. Her method? Alternating between a protein-filled mask and a moisture-rich hair mask every wash.

She’s right. Using masks and treatments loaded with proteins can build up on your hair strands, making it feel dry and brittle, having legit the opposite effect you’re looking for. And too much moisture can be heavy and make your hair snap too. Blake’s method involves shampooing and masking (yup—she doesn’t use traditional conditioner, just a mask. “Conditioner is just like a diluted mask,” she says. “I condition, just with a mask.”)

Wondering how to do it? “If you can afford to buy them all at once, I would toggle between the strength and nourishment, wash to wash,” Blake says. “If you can just do one, that works too. Just when you’re done, no matter how well it worked for you, don’t rebuy that one, buy the other one,” she adds. And it doesn’t matter which one you start with either.

Wild Nectar Santal Fundamental Nourishing Shampoo
Blake Brown Wild Nectar Santal Fundamental Nourishing Shampoo
Wild Nectar Santal Fundamental Nourishing Mask
Blake Brown Wild Nectar Santal Fundamental Nourishing Mask
Sandalwood Vanille Fundamental Strengthening Shampoo
Blake Brown Sandalwood Vanille Fundamental Strengthening Shampoo
Sandalwood Vanille Fundamental Strengthening Mask Hair Treatment
Blake Brown Sandalwood Vanille Fundamental Strengthening Mask Hair Treatment

“Because we’ve been developing these products for so long, I’ve been using the shampoos and masks for at least two years now,” Blake says. Which makes me wonder...how long has Taylor potentially been on this routine? I like to think Blake handed her lab samples as soon as they were ready back in 2022.

I just started testing the range myself and my hair feels so moisturized and smooth. And the scent is delicious-smelling too—I spritzed the dry shampoo on this morning, took a Pilates class, and afterward, my instructor complimented how good I smelled—and that was all I was wearing, no perfume added. But Cosmo editors test it all, obviously, so we’ve got hella recs. Shop more protein and moisturizing shampoos and masks we <3 below:

Strengthening
No. 4 Bond Maintenance Shampoo
Olaplex No. 4 Bond Maintenance Shampoo
Strengthening
No 8 Bond Intense Moisture Mask
Olaplex No 8 Bond Intense Moisture Mask
Strengthening
Pomegranate & Honey Moisturizing and Detangling Shampoo
Mielle Pomegranate & Honey Moisturizing and Detangling Shampoo
Strengthening
Babassu & Mint Deep Conditioner
Mielle Organics Babassu & Mint Deep Conditioner
Moisturizing
Signature Shampoo
Dae Signature Shampoo
Moisturizing
Monsoon Moisture Mask
Dae Monsoon Moisture Mask
Moisturizing
The One Signature Shampoo
Kristin Ess The One Signature Shampoo
Moisturizing
Fragrance Free Deep Conditioning Treatment Mask
Kristin Ess Fragrance Free Deep Conditioning Treatment Mask
Headshot of Beth Gillette

Beth Gillette is the beauty editor at Cosmopolitan, where she covers skincare, makeup, hair, nails, and more across digital and print. She can generally be found in bright eyeshadow furiously typing her latest feature or hemming and hawing about a new product you "have to try." Prior to Cosmopolitan, she wrote and edited beauty content as an Editor at The Everygirl for four years. Follow her on Instagram for makeup selfies and a new hair 'do every few months.