March 7th, 2024

Is Water Damaging Your Extensions?

By Tatiana Montano

touching dry brittle hair

Are your hair extensions getting tangled or feeling dried out quickly? It's very likely that it's the mineral buildup in the water that you are washing them in. In today's blog post, we are going to talk about the effects hard water can have on your extensions and some small adjustments you can make to ensure you are maintaining the quality of your extensions for a long time.

hard water shower head with buildup and a shower head with water softener filter


Hard water is a common issue in many households, particularly in areas with high mineral content in their water supply.

  • West Coast. (WA, OR, CA, NV, AZ)
  • Rocky Mountains. (ID, MT, WY, UT, CO)
  • Midwest. (ND, SD, NE, KS, OK, MN, IA, MO, WI, IL, MI, IN, OH, KY)
  • Gulf Coast. (NM, TX, LA, AR, MS, AL, FL)
  • East Coast. (GA, TN, VA, WV, MD, DE, NY, RI, CT, VT, ME)

When you wash your hair or extensions with hard water, the minerals in the water can create buildup on the hair shaft, making it difficult for moisture to penetrate and leaving your hair feeling dry and rough. Hard water will wreak havoc on your own hair and will also do the same to your extensions, drying them out, causing you to use too much shampoo and conditioner, and leaving a nasty buildup behind.

soft water shower head with sun shining in the background


When it comes to washing your own hair, the best solution is to invest in a filtration system within your home, but that can definitely be costly. Amazon has some great inexpensive options to purchase a filtered shower head you can easily install into your shower.

However, when it comes to washing your extensions in the sink, we highly suggest washing your hair extensions in distilled water. But why is distilled water the answer? Distilled water is free from impurities and minerals, making it gentle and nourishing for your natural hair extensions. By using distilled water to wash, condition, and rinse your extensions, you can avoid the buildup of minerals and ensure that your extensions stay soft, silky, and manageable.

Since they don't need to be washed as regularly as your natural hair, it's truly worth the trouble and a few bucks to pick up 2 gallons of distilled water from the local grocery store to use to wash, condition, and rinse your extensions in. You will not only see a huge difference in the texture of your hair extensions, but it will prolong the life of your extensions & make them look and feel much softer for much longer.

washing cashmere clip-in extensions with cashmere hair care washing set


The Extension Care Set is the only product line we recommend to safely care for your Cashmere Hair Clip-in Extensions. Each product was designed to refresh, restore, and protect our 100% Remy Human Hair. It’s specifically formulated to extend the life of your Cashmere Hair extensions!

For most people is not necessary to wash your extensions after every use. If you find that your extensions are tangling or frizzing up, please wash, condition, and use our Extension Shine Spray after they have dried to add extra shine and prevent tangles.

Wash Schedule

  • If you have oily hair / scalp: Wash & Condition every 3 - 5 wears
  • After using hairspray or styling products: Wash & Condition 1 - 2 wears
  • Dry hair / scalp: Wash & Condition 10 - 15 wear
  • Normal Hair / scalp: Wash & Condition 5 - 10 wears
  • If you swim with them (not recommended): Wash, condition & use Cashmere Hair ® Deep Treatment immediately
  1. Gently brush hair with the Cashmere Hair ® Brush before washing to remove excess tangles. Starting from the ends and work up towards the clips
  2. Wash hair extensions using only the Rebalancing and Moisturizing Shampoo
  3. Instead of using tap water, fill a basin or sink with distilled water and mix in Rebalancing and Moisturizing Shampoo. Gather hair in a ponytail at the top by the clips, and fastening with a hair tie to keep hair together in the same direction
  4. Then gently immerse hair in water with shampoo until well saturated, work extra shampoo into extensions if needed
  5. Rinse thoroughly in the distilled water
  6. Squeeze out excess water gently. Do Not Rub or Twist Hair
  7. Fill the basin with fresh distilled water, and add Rebalancing & Moisturizing Conditioner to the hair working into hair with fingers. Immerse hair in the water, and work conditioner into hair gently finger comb out tangles while underwater
  8. Rinse thoroughly, and follow with the Cashmere Hair® Strengthening & Smoothing Deep Treatment, leave on for 5 minutes & rinse with water
  9. Towel blot hair extensions to remove excess water & hang or lay flat to dry. Do not wring out the hair or squeeze it too hard. Using a towel, gently press to absorb moisture. Do not rub your hair with the towel, this may cause frizzing or damage
  10. After hair has dried, use the Cashmere Hair ® Brilliant Shine Extension Shine Spray sparingly on ends of hair to protect, de-frizz and smooth hair before styling
  11. Since the natural texture of Cashmere Hair® Extensions is wavy, you may need to use a flat iron to straighten and smooth hair extensions after washing
  12. Style as desired