Here's why:
* Harsh Chemicals: Dish soap is designed to strip grease and grime from dishes. It contains strong detergents that are much harsher than those found in shampoos formulated for hair.
* Stripping Natural Oils: Dish soap will strip your hair of its natural oils (sebum), leaving it dry, brittle, and prone to breakage.
* Scalp Irritation: The harsh chemicals can also irritate your scalp, leading to dryness, itching, and even flakiness.
* Color Fading: If you have color-treated hair, dish soap will cause the color to fade much faster.
* No Lightening Properties: Dish soap doesn't contain any ingredients that will lighten hair. Hair lightening is a chemical process that requires specific ingredients like hydrogen peroxide or bleach.
What Happens If You Use Dish Soap On Your Hair:
* Very dry, straw-like hair
* Brittle and prone to breakage
* Tangled and difficult to manage
* Faded hair color (if applicable)
* Irritated and possibly flaky scalp
If You Accidentally Used Dish Soap:
* Deep Condition: Immediately use a deep conditioner or hair mask to try and replenish some of the lost moisture.
* Leave-In Conditioner: Use a leave-in conditioner or hair oil to help hydrate and protect your hair.
* Avoid Heat Styling: Limit or avoid heat styling (blow dryers, curling irons, straighteners) until your hair recovers.
* Gentle Shampoo and Conditioner: Switch to a gentle, moisturizing shampoo and conditioner specifically designed for your hair type.
If you want to lighten your hair, use products specifically formulated for hair lightening, and ideally consult with a professional hairstylist to avoid damage.
In summary, washing your hair with dish soap is damaging and will not lighten it.