Ethique Curl-Defining Shampoo Bar for Curly & Wavy Hair — Professor Curl, Shea Butter for Moisture & Frizz Control (3.88 oz)

This compact shampoo bar—Professor Curl—was crafted for naturally curly and wavy hair that needs moisture, frizz control, and definition without adding bottled waste. Formulated to be gentle on color-treated hair and free from animal testing, the bar replaces multiple bottles of liquid shampoo while delivering concentrated cleansing and conditioning agents. It suits travel, gym bags, and everyday routines for anyone seeking a lower-impact option that still prioritizes curl health and manageability.

How will this bar improve curl definition and reduce frizz?

The bar combines emollient-rich ingredients that smooth the hair cuticle and add slip to tangled curls, so coils form with clearer separation and less flyaway. Shea butter and cocoa seed butter deliver lasting moisture, while glycerine attracts and locks in hydration to encourage spring and elasticity.

• Shea butter to soften and add pliability to each curl.
• Cocoa seed butter for glossy, smoother-looking strands.
• Glycerine to draw moisture and preserve curl bounce.
• Solid format concentrates actives for effective low-residue cleansing.

Is this shampoo bar suitable for color-treated or chemically processed curls?

Yes—the formulation is designed to be gentle and non-stripping so it preserves color vibrancy while cleaning. The bar avoids aggressive surfactants that can fade dye quickly and instead focuses on balanced cleaning combined with conditioning components.

• Low-irritation surfactant blend gentle on dyed hair.
• Moisture-binding agents to help maintain color gloss.
• Solid form reduces exposure to harsh preservatives common in some liquids.

How should I use it and how long does one bar last?

Use on wet hair by rubbing the bar directly onto the scalp and through lengths or lathering in hands first. One Ethique bar replaces about three standard bottles of liquid shampoo; lifespan varies by hair length and frequency but typically lasts weeks to months with normal use.

• Rub bar on wet scalp or create lather in hands.
• Massage gently into roots and through curls, then rinse thoroughly.
• Allow bar to dry between uses to extend life—use a ventilated soap dish.
• Estimated life: multiple weeks depending on usage and hair length.

What makes this an eco-conscious choice compared with bottled shampoos?

The solid format minimizes plastic waste by replacing multiple liquid bottles with one compostable or recyclable package. Ethique prioritizes renewable, vegan ingredients and cruelty-free testing practices, reducing environmental impact while providing a concentrated, low-water product.

• One bar replaces roughly three bottles of shampoo.
• Made from renewable, vegan-sourced ingredients.
• Plastic-free packaging reduces landfill and ocean plastic.
• Concentrated solids lower transport weight and emissions.

Who is this for: The Ethique Curl-Defining Shampoo Bar—Professor Curl—is aimed at people with curly, coily, or wavy hair who want improved curl shape, reduced frizz, and a lower-waste routine. It’s a good match for color-treated curls and for anyone who travels or prefers compact, solid haircare. If you use conditioner bars, pairing this shampoo with Ethique’s Curl-Defining Conditioner Bar completes a supportive, eco-friendly curl system that focuses on moisture, definition, and sustainability.

Ingredients

Sodium Cocoyl Isethionate, Stearic Acid, Sodium Cocoyl Glycinate, Coconut Acid, Theobroma Cacao (Cocoa) Seed Butter, Butyrospermum Parkii (Shea) Butter, Betaine, Behentrimonium Methosulfate, Brassica Alcohol, Sodium Isethionate, Aqua (Water), Lactic Acid, Fragrance (Parfum)1, Guar Hydroxypropyltrimonium Chloride, Glycerine, Cymbopogon Flexuosus (Lemongrass) Oil, Benzyl Alcohol, Sodium Chloride, Dehydroacetic Acid, Mica, Hydroxypropylgluconamide, Hydroxypropylammonium Gluconate, Tartaric Acid, Potassium Benzoate, Sodium Benzoate, Citral2, Geraniol2, Linalool2, Titanium Dioxide (CI 77891), Chromium Oxide Greens (CI 77288). 1Natural fragrance. 2Component of essential oils and fragrance.