Function of Beauty Custom Co-Wash Review: Is It Right for Your Curls?

If you have curly hair, you know the struggle of finding a cleanser that removes buildup without stripping your strands of precious moisture. Enter co-washing—a method that uses a cleansing conditioner instead of shampoo to gently refresh your curls. Function of Beauty’s Custom Co-Wash promises a personalized formula tailored to your hair’s unique needs. But does it live up to the hype? In this review, we’ll break down everything you need to know about this product, from its ingredients to its performance on different curl types.

Whether you’re a seasoned co-washer or just exploring low-poo alternatives, this detailed review will help you decide if the Function of Beauty Custom Co-Wash deserves a spot in your shower. We’ll also compare it to other Function of Beauty products like the Curly Hair Shampoo and Curly Hair Conditioner so you can build the perfect routine.

What Is the Function of Beauty Custom Co-Wash?

The Function of Beauty Custom Co-Wash is a cleansing conditioner designed to gently cleanse curly, coily, and wavy hair without sulfates or harsh detergents. It’s part of Function of Beauty’s customizable line, meaning you can select your hair goals (like hydration, frizz control, or curl definition) and even choose your scent and color. The formula is free from parabens, phthalates, and sulfates, making it a great low-poo option for those who want to preserve their natural oils.

Unlike traditional shampoos that can leave curls feeling dry and brittle, this co-wash uses mild surfactants and nourishing ingredients to remove dirt and product buildup while maintaining moisture. It’s designed to be used in place of your regular shampoo, typically 2-3 times per week, depending on your hair’s needs.

• Key benefits: gentle cleansing, moisture retention, customizable formula
• Best for: curly, coily, and wavy hair types looking for a low-poo alternative
• Free from: sulfates, parabens, phthalates, mineral oil

How Does It Compare to Other Function of Beauty Cleansers?

If you’re already using Function of Beauty’s Curly Hair Shampoo, you might wonder how the Custom Co-Wash differs. The Curly Hair Shampoo is a sulfate-free shampoo that provides a deeper clean, making it ideal for days when you have heavy product buildup or need to reset your curls. In contrast, the Custom Co-Wash is even gentler and can be used more frequently without fear of over-cleansing.

For those who prefer a two-step routine, pairing the Custom Co-Wash with the Curly Hair Conditioner is a winning combination. The conditioner adds extra hydration and slip, helping to detangle and define curls. Alternatively, if you have wavy hair, you might also consider the Wavy Hair Shampoo and Wavy Hair Conditioner for a tailored cleanse.

• Custom Co-Wash: daily or every-other-day gentle cleansing
• Curly Hair Shampoo: deeper cleanse for buildup or weekly reset
• Pair with Curly Hair Conditioner for maximum moisture and definition

Performance on Different Curl Types

We tested the Function of Beauty Custom Co-Wash on loose waves, tight coils, and everything in between. For wavy hair (2A-2C), the co-wash provided enough cleansing to refresh without weighing hair down. Waves remained bouncy and frizz-free. For curly hair (3A-3C), the co-wash excelled at maintaining moisture and curl clumps, though some with very dense curls may need a clarifying shampoo occasionally.

For coily hair (4A-4C), the Custom Co-Wash was a game-changer. It gently lifted buildup from heavy butters and oils without stripping the hair. Follow up with a leave-in like the Wavy Hair Leave-In Treatment with Babassu Oil for extra hydration. Overall, the co-wash performed best on hair that is not excessively oily or product-laden.

• Wavy hair: lightweight cleansing, no greasiness
• Curly hair: maintains moisture and curl definition
• Coily hair: gentle enough for frequent use, but may need occasional clarifying

How to Use the Custom Co-Wash for Best Results

Using the Function of Beauty Custom Co-Wash is simple. Start by wetting your hair thoroughly. Apply a generous amount to your scalp and lengths, then massage gently with your fingertips for 1-2 minutes. Focus on your scalp to lift dirt and oil, then work the product through your ends. Rinse thoroughly. For extra cleansing, you can repeat the process.

After co-washing, follow with a conditioner or leave-in treatment. The Custom Co-Wash is not a one-step product—it still requires conditioning for optimal moisture. If you have fine curls, avoid applying too much to your roots to prevent buildup. For thicker curls, you can use more product to ensure even distribution.

• Use 2-3 times per week, or as needed
• Massage scalp thoroughly to remove buildup
• Always follow with a conditioner or leave-in for best results

The Function of Beauty Custom Co-Wash is a solid choice for anyone with curly, coily, or wavy hair looking to embrace a low-poo lifestyle. Its customizable formula allows you to target your specific hair concerns, while the gentle cleansing action keeps your curls hydrated and happy. While it may not replace your regular shampoo entirely (especially if you use heavy styling products), it’s an excellent addition to your rotation. Ready to give your curls the gentle cleanse they deserve? Check out the Custom Co-Wash and build your perfect hair care routine today.