Maybe you’ve been blaming hormones. Postpartum. Stress. Age. Your thyroid. Your diet. Not enough time outdoors. Parasites. Some mystery deficiency an influencer said you have.
So you buy the supplements, you do the cleanse, add the collagen, drink the bone broth, try another scalp serum, go back to mainstream shampoo, cut your hair, and your hair still feels dry, flat, heavy, frizzy, or just… off.
And yes, all of those things can absolutely affect your hair. But sometimes the problem is much simpler, and it’s one we rarely think to address.
Your hair is covered in buildup.
Hard water minerals, bonding treatments, styling products, dry shampoo, conditioner residue. With each use, they leave something behind on the hair. Some of that coating is intentional (leave-on products), but with repeated use, it may not fully wash away like it’s supposed to.
And until you remove the buildup, you can keep switching shampoos, trying new styling products, going in for hair cuts and wondering why nothing seems to work anymore.
The fix is a clarifying reset once or twice a month.
Here’s how buildup happens, why your shampoo can’t always remove it, and the exact routine I use.
The buildup problem
Most of the products we use on our hair will leave something behind after shampooing:
leave-ins
silicones
bonding treatments
heat protectants
dry shampoo
styling creams
hairspray
conditioner
Shampooing should remove product from our hair, and it does. However, as haircare has shifted toward sulfate-free surfactants over the last decade, which is a good thing, shampoos have also become much gentler.
The downside is that these gentler surfactants sometimes can’t fully break through buildup, especially when a lot of products are being used and/or hard water is part of the equation.
Over time, that buildup can coat the hair shaft and create a barrier that makes it harder for water, conditioner, masks, and other moisturizing ingredients to properly reach and interact with the hair.
Buildup eventually damages the hair, causing breakage and split ends too.
The scalp can develop buildup too:
Sebum
sweat
dead skin cells
dry shampoo
oils
and styling products
Collect around the roots and scalp over time. So when we talk about buildup, we’re not only talking about what is coating the lengths of our hair.
Then we add hard water to the equation.
Hard water contains dissolved minerals, primarily calcium and magnesium. Every time you shower, your hair is exposed to those minerals, and over time they can remain behind on the hair after rinsing.
Those mineral deposits can also interact with oils, conditioners, and styling products already on the hair, making buildup more stubborn and difficult for your regular shampoo to remove. In other words, you can end up with buildup on top of buildup.
Your hair needs a clean slate so your everyday products can do their job.
And yes, this is where I break my own crunchy rules a little
I love clean haircare. I formulate clean haircare. I use clean haircare.
But I’m also not going to pretend every natural product is the best tool for every job.
If your hair has months of mineral and product buildup sitting on it, sometimes you need the heavy hitters. So once or twice a month, I’m perfectly comfortable reaching for a stronger sulfate based clarifying or chelating shampoo and then going right back to my normal routine. Sulfates are a class of surfactants that are very strong; they’re overly stripping and can cause scalp irritation overtime but one thing they’re good at is removing all the gunk from the hair.
Clarify your hair occasionally with a sulfate based shampoo so your gentler everyday products can do what they do best the rest of the month.
My favorite clarifying shampoos + the full routine
I’ve tried a ridiculous number of clarifying shampoos, and living in Arizona gives me the perfect testing ground because our water is HARD.
My number one pick is a grocery store brand. It’s a dupe of a cult classic that got discontinued, and nothing else I’ve tried comes close.
Below, I’m sharing:
My three favorite clarifying shampoos, ranked from strongest to mildest
The one with a chelator for hard water
My exact two-step reset routine and the deep conditioners I use
How often to clarify, and whether it’s color safe
What I use on regular wash days between resets
