How to Wash Hair With Locs | A Scalp-First Routine

Washing locs is different from washing loose hair. Standard conditioners cause unraveling, and residue from normal shampoos builds up inside the loc shaft over time. The goal is a clean scalp and fresh locs without leaving anything behind. The procedure is straightforward once you know the product rules and drying requirements.

Shampoo and Product Rules for Locs

Use only residue-free or clarifying shampoos formulated for dreadlocks. Avoid any shampoo with dyes, parabens, phthalates, or standard conditioning ingredients, which act as detanglers and loosen locs. Dilute the shampoo before applying — mix roughly 3 tablespoons of shampoo with 1 cup of water to create a thin, watery consistency that won’t cake inside the locs. Skip traditional conditioners entirely. For moisture, use an apple cider vinegar rinse (1/2 cup ACV mixed with 2 cups water, strained through a fine-mesh strainer) or herbal tea rinses instead.

The Washing Frequency Guide

How often you wash depends on your loc stage and your lifestyle. New locs (0 to 1 month old) need washing every 7 to 10 days to allow compression without excessive disruption — washing sooner can cause unraveling. Mature locs do well on a 2- to 3-week schedule for general maintenance. If you sweat heavily or live in a humid climate, washing every 7 days prevents buildup from sweat and oils. In dry climates or during cold months, every 7 to 14 days prevents over-drying the scalp.

Step-by-Step Washing Procedure

Preparation and the First Wash

Saturate the locs completely with warm water for several minutes to open the hair cuticle and loosen any existing buildup. Apply the diluted shampoo only to the roots and scalp — do not scrub the loc shafts themselves initially. Massage the scalp gently using your finger pads (never your fingernails) in circular motions. The suds will run down the length of the locs naturally as you massage. Rinse thoroughly until all bubbles disappear.

The Second Wash and Optional ACV Rinse

Apply diluted shampoo to the roots again, then gently push the suds down the shafts by squeezing the locs. A scalp massager brush helps work the shampoo through evenly. If your hair is heavily dirty or oily, repeat a third wash covering root to tip. Rinse until the water runs completely clear — incomplete rinsing is the most common cause of residue and odor inside locs. If you use an apple cider vinegar rinse, pour the mixture over the scalp (keeping your eyes closed to prevent burning) and let it sit for at least 5 minutes before rinsing thoroughly.

Critical Drying Protocol

Drying locs is the make-or-break step. Gently squeeze excess water out, then wrap the locs in a microfiber towel — cotton towels leave lint inside the locs. Air dry in a well-ventilated space or use a blow dryer on a cool or warm setting. Shake and separate the locs during drying to promote airflow between strands. Never go to bed with wet locs; drying takes 8 hours or more, and trapped moisture causes dread rot (mold growth). After drying, apply a light oil to the loc shafts and tips, then massage the scalp to seal in moisture.

Common Mistakes to Avoid

• Residue shampoo: Leads to long-term buildup, dullness, and odor. Stick to residue-free or clarifying formulas.
• Traditional conditioner: Causes locs to unravel and slip out. Use ACV or herbal tea rinses for moisture.
• Scrubbing with nails: Irritates the scalp and risks infection. Use finger pads or a scalp brush.
• Incomplete rinsing: Leaves residue inside the locs. Part the hair and check that water runs clear.
• Sleeping with wet locs: Creates conditions for mold. Wash in the morning and ensure at least 8 hours of dry time.
• Hot blow drying: Causes heat damage and dryness. Use cool or warm settings, or air dry.