Science
Real science and expert advice straight from our lab ✔️
How To Sleep With Long Hair
Keep your hair safe while you get your beauty sleep
Caroline Schmidt
How To Grow Curly Hair
Get your curls longer than they've ever been before
Caroline Schmidt
What's The Best Way To Wear Hair To Bed To Prevent Breakage?
How to care for your tresses overnight
Caroline Schmidt
Oil Training Hair: Q&A With A Dermatologist
Everything you need to know about oil training your hair
Caroline Schmidt
Nicotine And Hair Loss
Yes, Nicotine causes hair loss. Here's why and how:
Caroline Schmidt
Are Silicones Bad For Hair?
Think you've made up your mind about silicones? Let's talk about the science behind them.
Caroline Schmidt
Will Drinking Water Help Your Hair?
Will drinking extra water actually help your hair?
Caroline Schmidt
Does Alcohol Cause Hair Loss?
Is your beer a ~pour~ decision?
Caroline Schmidt
What Does Chlorine Do To Your Hair?
Spoiler: It's not good for it.
Caroline Schmidt
Does Hair Color Expire?
Pssst -- if you think your hair color has expired, you should go ahead and ditch it.
Caroline Schmidt
Is mineral oil bad for hair?
Mineral oil: you've got questions, and we've got answers 👍
Caroline Schmidt
Relaxed Hair Care
The secrets to the healthy relaxed hair of your dreams 🤩
Caroline Schmidt
pH Balanced Shampoo: Everything You Need To Know
The heck does "pH balanced" even mean???
Caroline Schmidt
How To Grow High Porosity Hair
Buh-bye, breakage
Caroline Schmidt
How To Get Yellow Out Of White Hair
Byyyye, yellow hair
Caroline Schmidt
What Is A Hair Cuticle?
Let's learn more about your hair's first line of defense against damage ⚔️
Caroline Schmidt
Hard Water and Hair
Is hard water damaging to hair? Let's review the science to find out 🧐
Caroline Schmidt
Hair Texture Changes 101
The good, the bad, and the ugly ... when it comes to hair texture changes, we've got you covered
Caroline Schmidt
Is Lemon Juice Good For Your Hair?
Get the juicy details
Caroline Schmidt
Can Anxiety Cause Hair Loss?
Take a deep breath... it'll be good for your hair.
Caroline Schmidt
Living With An Oily Scalp + Dry Ends
#unfair, right?
Caroline Schmidt
How To Detangle Hair (And Prevent Them In The Future!)
Buh bye, tangles!
Caroline Schmidt
Smelly Scalp: Why Does It Happen, and How Can You Fix It?
Guys. We really need to talk about smelly scalps.
Caroline Schmidt
How Long Do Highlights Last?
and how can you get the most out of your highlights post-service?
Caroline Schmidt
How To Tell If Your Hair Is Damaged
Is it time for a trim... or a chop?
Caroline Schmidt
Heat Trained Hair 101
Is heat training right for you?
Caroline Schmidt
Comb vs Brush | Which Is Better For Hair Health?
Comb vs brush - which tool wins in protecting hair health?
Caroline Schmidt
How much shampoo to use? Probably less than you think.
We've all been shampooing wrong this WHOLE TIME.
Caroline Schmidt
How Long Does It Take For Hair To Grow Back?
How long does it take for hair to grow back after a bad cut?
Caroline Schmidt
Is Hair Alive?
The answer might be a little more complicated than you thought 👀
Caroline Schmidt
Why Does Hair Turn Gray?
...and how do you know if your hair will go gray? Can you prevent it? Should you dye gray hair? We've got all these answers, plus more.
Caroline Schmidt
How Often Should Men Wash Their Hair?
...and do you need to even wash your hair in the first place? (spoiler alert: yes you do)
Caroline Schmidt
How Often Should You Condition Your Hair?
Pro tip: Never EVER skip conditioner, unless you really want to damage your hair.
Caroline Schmidt
What does purple shampoo do? Your biggest questions, answered.
Learn the insider secrets of purple shampoo 😉
Caroline Schmidt
Is DIY Hand Sanitizer Safe?
Nope, it's really not. Please wash your hands instead.
Tammy Lisi
Does Shampoo Expire?
...and how do you tell if your products have gone bad? We've got the info you need 👍
Caroline Schmidt
Stress & Hair Loss: 4 Fast Facts
Worried that stress is stealing your hair? We've got the info you need to rest easy 👍
Caroline Schmidt
Do Hair Vitamins Work? Here's What The Science Says.
Are these prettily-packaged vitamins really effective in making your hair healthier? Let's check the science to find out more.
Caroline Schmidt
Why is Formulate Paraben Free?
We've got the down & dirty on this controversial ingredient.
Tammy Lisi
How Do I Repair Split Ends?
Is it really possible to repair split ends without a trim? We've got the uncut💇 scoop!
Tammy Lisi
What's the Best Way to Dry My Hair?
Hint: It's not air-drying 😲
Caroline Schmidt
Dry Hair: What Is It and How Do I Fix it?
🔊🎵🎶 OKAY LADIES NOW LET'S GET SOME HYDRATION! 💦
Tammy Lisi
What You Need to Know About Transitioning to Sulfate-Free Shampoo
Consider this your ultimate guide to the sulfate-free journey ✅
Tammy Lisi