If you’re constantly chasing more volume without sacrificing softness, the solution may lie in how you wash your hair—not just the products you use.
According to hair transplant surgeon Dr. Divya Shokeen, one simple technique she recommends to patients is the “sandwich method,” a washing routine designed to create fuller-looking hair while minimizing dryness and frizz.
Here’s how it works.

What Is the Sandwich Method?
Unlike the traditional shampoo-then-condition routine, the sandwich method starts with conditioner. "I'm a hair transplant surgeon, and this is my most elite way of washing hair," Dr. Shokeen says.
"I tell this to patients day in and day out, and I truly think this is the best way to get that volume that you're looking for while making sure your hair is nice and smooth and you don't get a bunch of flyaways."
The method gets its name because the shampoo is "sandwiched" between two rounds of conditioner.
Step 1: Condition the Lengths First
Begin by applying conditioner from the mid-lengths to the ends of your hair. "Condition the entire length of your hair—but not the top of your scalp," Dr. Shokeen advises. Keeping conditioner away from the roots helps prevent the scalp from becoming weighed down while still protecting the more fragile lengths of your hair.
Step 2: Shampoo With the Conditioner Still On
Instead of rinsing the conditioner out first, apply shampoo directly to your scalp while the conditioner remains on the ends. Dr. Shokeen explains that this helps thoroughly cleanse the scalp while shielding the rest of your hair from becoming overly dry.
Step 3: Rinse Everything, Then Condition Again
Once you've shampooed your scalp, rinse your hair completely before applying a second layer of conditioner. "Condition again," Dr. Shokeen says. She explains that the final conditioning step helps seal the hair cuticle for a smoother finish while replenishing moisture lost during cleansing.
Why It Can Boost Volume
According to Dr. Shokeen, this routine offers the best of both worlds. The shampoo effectively removes excess oil, product buildup, and yeast from the scalp—factors that can weigh hair down—while the conditioner protects the hair shaft from becoming stripped or brittle.
"That makes sure that your cuticles are actually sealed, but also will help make sure that you get rid of all of the unnecessary yeast and buildup throughout your scalp without overdrying the rest of your hair," she explains. The result? Hair that feels cleaner at the roots, smoother through the ends, and naturally fuller after styling.

The Bottom Line
While no washing method can permanently increase hair volume, keeping the scalp clean while protecting the hair's moisture barrier can help strands look healthier, bouncier, and easier to style. For anyone struggling with flat roots, frizz, or dry ends, Dr. Shokeen says the sandwich method is worth trying. "Trust me," she says. "This is the best way to wash your hair."

