Co-Washing Basics

Close up of clean hair strands

Co-washing is the practice of washing hair with conditioner rather than shampoo. This technique focuses on removing surface debris while maintaining the structural moisture of the hair fiber. It is most effective for those with dry or naturally textured hair that does not produce high amounts of sebum.

The process requires a methodical approach to product application and mechanical removal. By skipping detergents, you avoid stripping the hair, though you must remain diligent about buildup.

Adopt this routine only if your hair thrives on moisture and does not require deep cleaning for product residues. If your hair feels weighed down after a standard wash, this may not be the appropriate method for your hair type.

Difficulty
Beginner
Total time
20 minutes
Cost
Low
Cadence
Weekly or bi-weekly

Ingredients

  • Fatty alcohols: Provides emollience and slip.
  • Plant oils: Assists in debris removal.

Tools List

  • Water-soluble conditioner
  • Wide-tooth comb
  • Shower cap

Step by step

  1. 0:00 to 2:00

    Saturate with warm water

    Begin by soaking the hair thoroughly with warm water for at least two minutes. Ensure the water reaches the scalp and the ends. Do not proceed until every strand is saturated.

    Tip: Warm water softens the cuticle.
  2. 2:00 to 5:00

    Apply conditioner to the scalp

    Apply a generous amount of conditioner directly to the roots. Use the pads of your fingers to massage the scalp in small circular motions. This mechanical action is what lifts dirt and debris from the skin.

    Tip: Use a silicone-free formula.
  3. 5:00 to 10:00

    Distribute through the lengths

    Work the remaining conditioner from the mid-lengths to the ends of the hair. Use your fingers to detangle knots while the product is providing slip. Focus on areas that feel dry or coarse.

    Tip: Avoid tugging.
  4. 10:00 to 15:00

    Allow the product to sit

    Leave the conditioner on the hair for five minutes to allow the lipids to penetrate. This pause allows for hydration. Do not exceed ten minutes as the hair will reach saturation point.

    Tip: Use a shower cap.
  5. 15:00 to 20:00

    Rinse thoroughly

    Rinse the hair with cool water until the water runs clear. It is critical to remove all residue to prevent scalp irritation or flat, dull hair. Spend extra time rinsing the back of the head and the hairline.

    Tip: Cool water seals the cuticle.

Trouble

Why does my hair look flat?

You are likely using too much product or not rinsing thoroughly. Reduce the amount of conditioner by half and extend your rinsing time.

Is my scalp clean?

Mechanical massage is essential. If the scalp feels itchy, you must increase the time spent massaging with your fingertips during the cleansing step.

Can I use any conditioner?

Avoid products with heavy silicones. These ingredients require detergent to remove, which defeats the purpose of a co-wash routine.

How often should I use shampoo?

Introduce a clarifying shampoo once every two weeks to remove buildup that conditioner cannot reach. This ensures the scalp remains healthy.

Co-washing is not about clean, but about maintenance of moisture.
Consistency is the only metric for success here.
— Nelly