When supermodel Gisele Bündchen began modeling in the ‘90s, the hair looks were trendy and focused on the era’s look, requiring near-constant styling for photoshoots and runway shows. “As I got older, I started thinking much more about the long-term health of my hair, the ingredients I’m using, and how I’m caring for it day to day. It’s a more mindful approach,” she tells Women’s Health exclusively.
Now, the Nourish cookbook author and certified Pilates instructor is stepping into a new role as the first Global Ambassador in Garnier’s 120-year history. The partnership makes sense: Garnier’s focus on nature, science, and sustainability aligns with Bündchen’s values. “I’ve always believed that caring for yourself and caring for the planet go hand in hand,” she says. “That kind of thinking is very aligned with the work I try to support through my environmental initiatives.”
Bündchen’s laid-back approach to beauty reflects the buzzy skin-ification of hair: the trend of treating the scalp like skin—and Garnier noticed. “We’re seeing consumers adopt a more holistic approach to haircare, similar to their skincare routines,” notes Garnier general manager Sandra Villarreal. “They now seek products that style and actively support long-term hair health.”
That’s the idea behind the new Diamond Sleek Shine Spray. Think of it like a lightweight invisibel shield for your tresses. The heat protectant guards strands against temperatures of up to 450 degrees Fahrenheit, adds glass-like shine, and smooths hair without looking or feeling greasy. Even better? At just $8 a bottle, it costs less than a manicure. Talk about a good hair day!
In our exclusive conversation with Bündchen, the supermodel reveals her tried and true healthy hair and wellness tips
Spritz your strands with this lightweight spray, power on your hair dryer up to 450 degrees Fahrenheit, and style as usual. A combination of moisturizing argan oil and a vegan keratin smoothing complex reduce frizz and smooth strands.
Miami humidity is notorious for causing frizz and flyaways. Since you live there, what did it mean to test Diamond Sleek in your real, daily environment?
Miami is very humid, so it’s the perfect place to see if the product really works. The day we shot the campaign was a good test because we were outside on the beach the whole day. Normally, in that kind of humidity, my hair would get frizzy pretty quickly, but it stayed straight the whole day.
You’ve always been known for your incredible beach waves. How do you define healthy and strong hair?
For me, healthy hair really starts from within. Everything is connected. The way we nourish our bodies, how much rest we get, and how we manage stress all reflect on the outside. I think we look our best when we feel good.
After a sweaty workout or a busy day, what does a realistic hair reset look like?
I try to keep things very simple. After a workout, sometimes I’ll just rinse my hair and put a bit of conditioner on the ends so it’s easier to brush. Sometimes I will put in a braid when it is still wet and let it dry for a nice wave.
Our readers live active lifestyles too. What does hair need to stay strong through sweat, styling, and ponytails?
I think the most important thing is being gentle with your hair and giving it the nourishment it needs. Hair goes through a lot: sun, sweat, ponytails, especially when you’re active. I try not to pull it tight in the same place every day, and I always protect it when using heat, which is why I love Diamond Sleek. When I first started modeling, my hair was styled constantly, so I learned pretty quickly that the everyday care you give it is what keeps it healthy over time.
How has your mindset around using heat changed?
My day-to-day, I like to air-dry, but for work, my hair is usually exposed to heat, so it’s important to use a product that protects it. For me, it’s really about balance. It’s not about avoiding everything, it’s about using the right products and tools so you can take care of your hair while still living your life.
As a certified Pilates instructor and jiu-jitsu practitioner, how do those different movements shape your approach to fitness?
I love combining different kinds of movement because they support the body in different ways. Pilates is very grounding. It’s about strength, alignment, and connecting with your breath. Jiu-jitsu is very different—it’s dynamic and very mental. It teaches you patience and presence. For me, movement is really a way to reconnect with my body and my energy. It’s not just exercise, it’s something that helps keep me balanced and feeling strong.
In The Signature, there’s a playful moment where you’re doing everything from beach workouts to ice baths. How much of that reflects your real wellness routine?
Actually, a lot of it does. I love being outdoors. Nature always brings me back into balance, and it’s very healing to me. Walking on the beach, stretching, and doing yoga are things I do regularly.
Recovery practices like ice baths are something I’ve incorporated more over the years because they help my body recover. Wellness, for me, is really about listening to what your body needs and creating small daily rituals that support it.
Beyond exercise, what role do nutrition, sleep, and hydration play?
They are the foundation of everything. When you nourish your body well, drink enough water, and give yourself proper rest, you feel the difference in every part of your life.
Your energy and mood change; your skin and hair reflect it, too. It’s about creating habits that support your health and doing them consistently.
What advice do you have for women about embracing their strength and beauty?
I believe true beauty comes from feeling good with yourself, from loving yourself. When you see your body as a temple, you want to take care of it. When you take care of your body, nurture your mind, and live in alignment with your values, that confidence naturally shines through. When you feel strong, healthy, and at peace with yourself, that’s when your beauty really radiates.
Nicole Saunders is the beauty editor at Women’s Health and has nine years of experience researching, writing, and editing lifestyle content. She specializes in breaking down complicated topics, like red light therapy for hair growth and LED face masks, into easy-to-understand guides. Saunders takes great pride in heavily researching and testing featured beauty products, such as strengthening shampoos and body washes for dry skin on our site.
Previously, she was the beauty editor at Best Products where she tested quite literally thousands of launches for her quarterly column and the Best New Beauty Awards package. She also launched the beauty and wellness coverage at NBC News and contributed to CNN, Cosmopolitan, Billboard, The Hollywood Reporter, and Harper’s BAZAAR.
You can follow her on Instagram to stay in the loop on her product testing adventures.
