Why Do Hairdressers Always Follow the “Shampoo Twice, Condition Once” Formula?

You may have noticed that hair salons always shampoo your hair twice. But why do they do this, and what’s the difference between a double shampoo and a single wash?

It’s common for hair salons to shampoo their clients’ hair twice.

Typically, hair produces oil daily. The first shampoo aims to remove this oil, along with any dirt, products, and buildup on your scalp and strands, dissolving them into the water. You may notice less lather during this first wash.

The second shampoo will provide a deeper clean. After the initial shampoo, your hair is already clean, so it can more easily absorb the nutrients from the shampoo, resulting in a richer lather. Finally, a conditioner is applied to enhance nourishment and soften the hair.

Additionally, during the shampoo process, the stylist will massage your scalp with their fingertips. This action helps push out any oil and dirt trapped in the pores of your scalp, contributing to that extra-clean and lightweight feeling after a salon shampoo. It also helps prevent dryness and damage.

Not Everyone Needs to Shampoo Twice

However, whether you shampoo once or twice depends on several factors, including your hair length and texture. Those with long, thick, or oily hair may benefit from a double shampoo, as a single wash might not sufficiently clean their scalp and hair. Additionally, a second shampoo can ensure the complete removal of any styling products used.

On the other hand, those with thin or fine hair may only need a single shampoo, as over-shampooing can damage the scalp and remove beneficial oils. Excessive shampooing can also lead to hair color fading, dryness, and split ends.

Women with thick hair are more likely to need a double shampoo than those with thin hair and minimal styling products.

Furthermore, regardless of hair thickness, if you regularly use styling products, a double shampoo may be necessary. The first wash removes dirt and buildup, while the second wash ensures the removal of any product residue.

If you exercise frequently, your scalp is more likely to accumulate sweat and dirt, so a double shampoo can be beneficial. Additionally, those using medicated or anti-dandruff shampoos may need to follow up with a second, regular shampoo to ensure complete rinsing of the specialized product.

How to Shampoo at Home Like a Pro

1. Brush Your Hair First to Remove Tangles and Dirt

Use a wide-tooth comb to gently detangle your hair. This step also helps remove any dirt or product buildup, ensuring your hair is ready for shampooing.

2. Choose the Right Shampoo for Your Hair Type

Just like skincare, haircare is personalized. Your scalp, like your face, can be oily, sensitive, or allergic, so choose a shampoo that suits your hair type and scalp condition.

3. Shampoo Properly

Once you’ve selected the right shampoo, apply a small amount to your scalp and massage gently but thoroughly. Work the shampoo down the length of your hair in one direction, and then rinse it out. If needed, repeat the process.

4. Use a Towel to Remove Excess Water

An important step in the salon shampoo process is towel drying. Instead of twisting or wringing your hair to remove water, salons typically wrap the hair in a towel to absorb the excess moisture. This method can significantly reduce drying time and minimize heat damage to your hair.

5. Blow-dry Your Hair in One Direction

When blow-drying your hair, hold the dryer above your head and direct the airflow down the length of your hair. Use your fingers or a brush to guide your hair, creating a smooth, sleek finish.