What’s the Proper Order to Use Shampoo and Conditioner While Bathing?

Shampoo functions as a cleanser. It contains surfactants and detergents that lift away oil, sweat, grime, product residue, and pollutants from your hair.

Conditioners, conversely, are formulated with natural oils, proteins, and botanical extracts that help maintain hair softness, shine, and smoothness. They leave a thin protective layer on the hair after rinsing.

Most people lather shampoo onto their hair, rinse, and then apply conditioner. Shampooing clears away dirt and oil but can sometimes leave hair feeling rough, frizzy, and harder to manage. Applying conditioner after shampoo is commonly thought to address those effects.

But is washing with shampoo before conditioning the only correct approach?

A newer technique called reverse shampooing or pre-wash conditioning suggests you apply conditioner before shampoo. There is also a trend called co-washing that omits shampoo entirely and relies solely on conditioner to cleanse.

So which approach is superior? While the conventional shampoo-first method remains appropriate for most situations, depending on your hair type and preferences, experimenting with alternative routines occasionally may be helpful.

How to use shampoo and conditioner

The usual guidance is to cleanse with shampoo prior to using conditioner. For optimal results, follow these steps:

1. Thoroughly wet your hair with warm (not scalding) water.
2. Dispense a small amount of shampoo into your palm.
3. Apply it to your scalp and massage until it foams.
4. Work the shampoo through your hair, concentrating mostly on the scalp.
5. Rinse your hair and scalp completely.
6. Squeeze a small amount of conditioner into your hand.
7. Apply it along the lengths of your hair, avoiding the scalp.
8. Let the conditioner sit for approximately 3 minutes.
9. Rinse thoroughly.
10. After stepping out of the shower, gently blot your hair with a towel to remove excess moisture.

How frequently you wash and condition your hair depends on personal preference. Those whose hair becomes oily quickly may need to wash more often than people with drier hair types.

Regular cleansing with a gentle shampoo will not harm hair. Mild shampoos use softer cleansing agents and often include added conditioning components.

If your hair is oily or visibly dirty, it’s still advisable to use a stronger clarifying shampoo about once a week.

Difference between shampoo and conditioner

The primary distinction is that shampoos contain cleansing ingredients (detergents and surfactants), whereas conditioners do not.

Though conditioners lack cleansing agents, some shampoos (mild formulas) incorporate conditioning ingredients similar to those found in conditioners, such as natural oils, silicones, or proteins.

Using conditioner before shampoo

There’s limited scientific evidence about the safety and long-term effectiveness of reverse washing or co-washing, and no clear guidance on how frequently these methods should be used.

If your hair feels weighed down, flat, or greasy after conditioning, you might benefit from applying conditioner before shampoo. This technique—known as reverse washing or pre-wash conditioning—may be worth trying if you think it could suit your hair; there appears to be no major downside to experimenting.

In reverse washing, you do not rinse out the conditioner prior to shampooing. The process is:

1. Massage conditioner into the hair and allow it to sit for a few minutes.
2. Without rinsing out the conditioner, apply shampoo and work into a lather.
3. Rinse both shampoo and conditioner out together.

Advocates of reverse washing claim your hair won’t feel greasy or heavy afterward and that the conditioner:

• serves as a primer prior to cleansing
• helps distribute the shampoo more evenly
• protects hair strands so the shampoo is less likely to strip natural oils

Hairstylists typically advise using reverse washing only about once a week and recommend sticking with the conventional shampoo-first approach most of the time.

Who should condition hair before shampooing?

Occasional reverse washing may be suitable for people with hair that is:

• dry
• damaged
• fine

Co-washing (cleansing with conditioner alone and skipping shampoo) may be appropriate for those with:

• very dry hair
• hair prone to breakage, such as chemically treated hair
• curly or textured hair types

Co-washing can leave substantial product residue on the hair since it doesn’t thoroughly cleanse the scalp of dirt and styling buildup, particularly silicone-containing products.

If you choose to wash with conditioner only, avoid products that contain silicones, as they can make hair feel heavy, dull, and lifeless.

Steer clear of ingredients like cyclomethicone, dimethicone, and amodimethicone—common silicones. If you do use conditioners with these components, you may need a clarifying shampoo every 2 weeks to remove buildup.

For very coarse or curly hair, you can also try a condition-shampoo-condition sequence, since coarse hair tends to lose moisture rapidly.

Takeaway

Traditionally, shampooing before conditioning ensures sufficient removal of dirt and oil. Although scientific research doesn’t strongly back reverse washing, some stylists recommend it for people with very dry or fine hair who want conditioning benefits without extra weight.

Generally, it’s sensible to use these alternative methods only occasionally—once or twice a week—and to shampoo normally the rest of the time. Regular shampooing remains necessary to effectively clear dirt, sweat, and product accumulation.

The dirtier your hair and the more oil your scalp produces, the more frequently you’ll need to wash with shampoo first. On days you use a mild or clarifying shampoo, follow with a conditioner.